THREADED RODS / STUDS / BOLTS / NUTS / SCREWS / WASHERS
ASME SA193 Grade B7, Grade B7M, Grade B16, ASTM A193 Grade B7/B7M/B16
ASME SA193 Grade B5, Grade B6, Grade B6X, ASTM A193 Grade B5/B6/B6X
ASME SA320 Grade L7, Grade L7M, Grade L43, ASTM A320 Grade L7, L7M, L43
ASME SA194 Grade 2H, Grade 2HM, Grade 3, Grade 4, Grade 7, Grade 7M, Grade 16
ASTM A194 Grade 2H, 2HM, 3, 4, 7, 7M, 16
ASME SA193 Grade B8, Grade B8M, Grade B8 Class 2, Grade B8M Class 2
ASTM A193 Grade B8, B6M, B8 Class 2, B8M Class 2
ASME SA320 Grade B8, Grade B8M, Grade B8 Class 2, Grade B8M Class 2
ASTM A320 Grade B8, B8M, B8 Class 2, B8M Class 2
ASTM F1554 Grade 36, Grade 55, Grade 105 KSI Yield Strength Anchor Foundation Bolts
ASTM F1554 Grade-36, Grade-55, Grade-105 KSI Anchor Bolt for Concrete Foundations
High Tensile Bolts Grade 8.8, High Tensile Bolts Grade 10.9, High Tensile Bolts Grade 12.9
High Tensile Nuts Grade 8, High Tensile Nuts Grade 10, High Tensile Nuts Grade 12
ISO 898-1 Bolts, Screws, Studs Property Class / Grade 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 9.8, 10.9, 12.9
ISO 898-1 Bolt, Screw, Stud Property Class / Grade 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 9.8, 10.9, 12.9
ISO 898-2 Nuts Property Class / Grade 6, 8, 9, 10, 12 with specified Proof Load Value
ISO 898-2 Nut Property Class / Grade 6, 8, 9, 10, 12 with specified Proof Load Value
ISO 898-5 Screws, Threaded Fasteners Property Class / Grade 14H, 22H, 33H, 45H
ISO 898-5 Screw, Threaded Fastener Property Class / Grade 14H, 22H, 33H, 45H
ISO 898-6 Nuts Property Class / Grade 5, 6, 8, 10, 12 with specified Proof Load Value
ISO 898-6 Nut Property Class / Grade 5, 6, 8, 10, 12 with specified Proof Load Value
ISO 898-7 Bolts, Screws Property Class / Grade 8.8, 9.8, 10.9, 12.9
ISO 898-7 Bolt, Screw Property Class / Grade 8.8, 9.8, 10.9, 12.9
ASTM A453 / ASTM A453M Grade 660 UNS S66286 Class A, Class B, Class C, Class D
ASTM A453 / ASTM A453M Grade 651 UNS S63198 Class A, Class B
ASTM A453 / ASTM A453M Grade 662 UNS S66220 Class A, Class B
ASTM A453 / ASTM A453M Grade 665 UNS S66545 Class A, Class B
ASTM A453 / ASTM A453M Grade 668 UNS S66285 Class A, Class B
ASTM A540 / ASTM A540M Grade B21 (Cr-Ni-V) Class 1, Class 2, Class 3, Class 4, Class 5
ASTM A540 / ASTM A540M Grade B22 (4142-H) Class 1, Class 2, Class 3, Class 4, Class 5
ASTM A540 / ASTM A540M Grade B23 (E-4340-H) Class 1, Class 2, Class 3, Class 4, Class 5
ASTM A540 / ASTM A540M Grade B24 (4340 Mod.) Class 1, Class 2, Class 3, Class 4, Class 5
ASTM A540 / ASTM A540M Grade B24V (4340V Mod.) Class 1, Class 2, Class 3
ASTM A437 / ASTM A437M Grade B4B, Grade B4C, Grade B4D
ASTM A307, ASTM A307M, ASME SA307, ASME SA307M, ASTM A325, ASTM A325M, ASME SA325,
ASME SA325M, ASTM A354, ASTM A354M, ASME SA354, ASME SA354M, ASTM A394, ASTM A394M,
ASME SA394, ASME SA394M, ASTM A449, ASTM A449M, ASME SA449, ASME SA449M, ASTM A490,
ASTM A490M, ASME SA490, ASME SA490M BOLTS, STUDS, SCREWS
ASTM A563, ASTM A563M Grade O, A, B, C, D, DH, DH3 Carbon Steel & Alloy Steel Nuts
ASME SA563, ASME SA563M Grade O, A, B, C, D, DH, DH3 Carbon Steel & Alloy Steel Nuts
ASTM F436, ASTM F436M Type-1, Type-3 Hardened Steel Washers
ASME SA307 Grade A, B, C Carbon Steel Bolts and Studs 60000 PSI Tensile Strength
ASTM A307 Grade A, B, C Carbon Steel Bolts and Studs 60,000 PSI Tensile Strength
ASME SA194 Grade 8, Grade 8M, Grade 8F, Grade 8A, Grade 8C, Grade 6, Grade 310
ASTM A194 Grade 8, 8M, 8F, 8A, 8C, 6, 310
Stainless Steel Carbide Solution Treated & Strain Hardened Threaded Bar, Rod, Stud
Roll Threading Bar, Roll Threading Rod, Roll Threading Stud
Stainless Steel Austenitic Fasteners Grade A1 (AISI 303) A2 (AISI 304), A4 (AISI 316)
Fasteners 303 A1-50, A1-70, A1-80, 304 A2-50, A2-70, A2-80, 316 A4-50, A4-70, A4-80
Threaded Rods / Threaded Bars DIN 975, Stud Bolts DIN 976
Hexagon Bolts DIN 601, DIN 931, DIN 933, Hexagon Nuts DIN 555, DIN 934
SOCKET HEAD CAP SCREWS, FLAT HEAD SOCKET SCREWS, BUTTON HEAD CAP SCREWS
SOCKET HEAD SHOULDER SCREWS, SQUARE HEAD SET SCREWS, SOCKET SET SCREWS
LOW HEAD CAP SCREWS, SELF DRILLING SCREWS, SOCKET COUNTERSUNK HEAD SCREWS
HEX KEYS / HEXAGON SOCKET KEYS, PRESSURE PLUGS, DOWEL PINS, PULL-OUT DOWEL PINS
D.T.I Washers, Direct Tension Indicator, Direct Tensions Indicators, Load Indicating Washers
DTI Washers, DTI Compressible Washer, Load Indicator Washers, Direct Tension Indicating Washer
D.T.I Washer, ASTM F959 DTI Washer, ASTM F959M DTI Washer, ASTM F959 Type 325 DTI Washer
ASTM F959 Type 490 DTI Washer, ASTM F959 Type 325 D.T.I Washer, ASTM F959 Type 490 D.T.I Washer
Plain Washer DIN 125, Stud Metal End DIN 938, DIN 939, DIN 940
Flat Plain Washers, Square Flat Washers, Punch Washers, Taper Washers, Machine Washers
Conical Washers, Doubled Coiled Spring Washers, Spring Lock Washers, Spring Washers
Wave Spring Washers, Serrated Safety Washers (RIB Washers), Cylinderical Curved Washers
Property Class : 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 9.8, 10.9, 12.9
Make : UNBRAKO, CAPARO, TVS, LPS, UNK High Tensile Bolts, Screws & Nuts
Coatings : Bright Zinc Plating, Hot Dip Galvanising, Phosphatided, Nickel Plating BZP Cr3
Coatings : Yellow Zinc Plating, Blue Zinc Plating, White Zinc Plating, Black Oxide BZP CR+3
Coatings : Cadmium Plating - Silver, Cadmium Plating - Yellow, XYLAN / PTFE, Fluoropolymer
Coatings : PTFE Coatings, Fluropolymer Coatings, XYLAN Coatings, Molybdenum Disulfide Coatings
Coatings : Epoxy Coatings, Phenolic Coatings, Phosphate Coatings, Polyurethane Coatings
Coatings : Inorganic Zinc Coatings, Polyphenylene Sulfide / Kyton Coatings, FEP Coatings
Coatings : PVDF & Kynar Coatings, ECTFE / HALAR Coatings, Ceramic Epoxy Coatings
Coatings : TEFLON Coatings, PTFE TEFLON Coatings, HDG Hot Dip Galvanized Coatings
Coatings : Cadmium Plating - Silver, Cadmium Plating - Yellow, XYLAN / PTFE, Fluoropolymer
Treatments : Annealing, Solution Annealing, Normalizing, Blackodizing, Phosphating, Nitriding
Cold Heading Quality Wires for Fasteners - CHQ HB, HHB, SAE 1006, SAE 1008, SAE 1010
Cold Heading Quality Wires for Fasteners - CHQ SAE 1015, SAE 1018, SAE 1020, EN8, EN8D
Cold Heading Quality Wires for Fasteners - CHQ SAE 1541, SAE 1035, EN5K, 50CrV4, EN45, EN47
Cold Heading Quality Wires for Fasteners - CHQ SUP7,SUP9, SUP11, EN19, SAE 4135, SAE 4140
Cold Heading Quality Wires for Fasteners - CHQ SCM 435, SCM 440, EN18, 40Cr4, SAE 10B21
Cold Heading Quality Wires for Fasteners - CHQ SAE 15B25, SAE 15B41, SAE 10B35, 19MnB4M
Material : Nickel, Monel, Inconel, Incoloy, Hastelloy, Titanium, Alloy 904L, SMO254, Alloy 20, Sanicro 28
Material : Duplex 2205 UNS S32205 UNS S31803 ASTM A182 F51 F60, Duplex 329 ASTM A182 F52
Material : Super Duplex 2507 UNS S32750 ASTM A182 F53, UNS S32760 ASTM A182 F55 Din 1.4501
Material : 22CrMo4, 24CrMo4, 25CrMo4, 26CrMo4, 34CrMo4, 42CrMo4, 34CrNiMo6, 41CrNiMo6
Material : AISI 4130, SAE 4130, AISI 4140, SAE 4140, AISI 4145, SAE 4145, AISI 4340, SAE 4340
Material : EN8, EN9, EN19, EN24 Condition : Normalized, Tempered, Quenched & Tempered

ASTM A193 / ASTM A193M Alloy Steel & Stainless Steel Bolting Materials for High-Temperature Service

DIN 906 - Hexagon Socket Pipe Plugs

DIN 908 - Hexagon Socket Screw Plugs

DIN 910 - Hexagon Head Screw Plugs

DIN 911 - Hexagon Socket Screw Keys

DIN 912 - Socket Head Cap Screws

DIN 913 - Socket Set Screws with Flat Point

DIN 914 - Socket Set Screws with Cone Point

DIN 915 - Socket Set Screws with Dog Point

DIN 916 - Socket Set Screws with Cup Point

DIN 917 - Hexagon Cup Nuts - Low Pattern

DIN 920 - Slotted Pan Head Screws, Small Head

DIN 923 - Slotted Pan Head Screws with Shoulder

DIN 927 - Slotted Shoulder Screws

DIN 928 - Square Weld Nuts

DIN 929 - Hexagon Weld Nuts

DIN 931 - Hexagon Cap Screws Partially Threaded

DIN 933 - Hexagon Cap Screws Fully Threaded

DIN 933 Sz - Hexagon Cap Screws with Slot

DIN 934 - Hexagon Nuts - 0,8d

DIN 935 - Castle Nuts

DIN 936 - Hexagon Jam Nuts

DIN 937 - Hexagon Thin Slotted and Castle Nuts

DIN 939 - Studs, Tap End - 1,25d

DIN 960 - Hex Cap Screws, Metric Fine Thread - Part Thread

DIN 961 - Hex Cap Screws, Metric Fine Thread - Full Thread

DIN 963 A- Slotted Flat Head Machine Screws

DIN 964 A- Slotted Oval Head Machine Screws

DIN 965 A - Cross Recessed Flat Head Machine Screws

DIN 966 A - Cross Recessed Oval Head Machine Screws

DIN 980 V - Self-Locking Nuts; All Metal Construction

DIN 982 - Self- Locking Nuts w/nylon Insert: Heavy Series

DIN 985 - Self Locking Nuts w/locking Insert: Standard Series

DIN 986 - Self Locking Domed Cap Nuts with Nylon Insert

DIN 988 - Shim Washers

ASME Fasteners

ASME SA193 : Alloy & Stainless Steel Bolting Material for High Temperature

ASME SA193M : Alloy & Stainless Steel Bolting Material for High Temperature

ASME SA194 : Alloy & Stainless Steel Nuts for High Temperature

ASME SA194M : Alloy & Stainless Steel Nuts for High Temperature

ASME SA307 : Carbon Steel Externally Threaded Fasteners

ASME SA307M : Carbon Steel Externally Threaded Fasteners

ASME SA320 : Alloy & Stainless Steel Bolting for Low Temperature

ASME SA320M : Alloy & Stainless Steel Bolting for Low Temperature

ASME SA325 : High Strength Bolts for Structural Joints

ASME SA325M : High Strength Bolts for Structural Joints

ASME SA354 : Quenched & Tempered Alloy Steel Bolts, Studs & Other Fasteners

ASME SA354M : Quenched & Tempered Alloy Steel Bolts, Studs & Other Fasteners

ASME SA437 : Alloy Steel turbine Bolting Specially Heat Treated for High Temperature

ASME SA437M : Alloy Steel turbine Bolting Specially Heat Treated for High Temperature

ASME SA449 : Quenched & Tempered Bolts & Studs

ASME SA449M : Quenched & Tempered Bolts & Studs

ASME SA453 : Bolting Material, High Temperature 50 to 120 ksi Yield Strength

ASME SA453M : Bolting Material, High Temperature 50 to 120 ksi Yield Strength

ASME SA489 : Carbon Steel Eyebolts

ASME SA489M : Carbon Steel Eyebolts

ASME SA490 : Heat Treated Structural Bolts, 150 ksi Tensile Strength

ASME SA490M : Heat Treated Structural Bolts, 150 ksi Tensile Strength

ASME SA540 : Alloy Steel Bolting for Special Applications

ASME SA540M : Alloy Steel Bolting for Special Applications

ASME SA563 : Carbon & Alloy Steel Nuts

ASME SA563M : Carbon & Alloy Steel Nuts

ASME SA574 : Alloy Steel Socket Head Cap Screws

ASME SA574M : Alloy Steel Socket Head Cap Screws

ASME SA687 : High Strength Non Headed Steel Bolts & Studs

ASME SA687M : High Strength Non Headed Steel Bolts & Studs

ASME F436 : Hardened Flat Washers

ASME F436M : Hardened Flat Washers

ASME F467 : Nonferrous Nuts for General Use

ASME F467M : Nonferrous Nuts for General Use

ASME F468 : Nonferrous Bolts, Cap Screws, & Studs for General Use

ASME F468M : Nonferrous Bolts, Cap Screws, & Studs for General Use

ASME F541 : Alloy Steel Eyebolts

ASME F541M : Alloy Steel Eyebolts

ASME F568 : Carbon & Alloy Steel Metric Fasteners

ASME F568M : Carbon & Alloy Steel Metric Fasteners

ASME F593 : Stainless Steel Bolts, Cap Screws & Studs

ASME F593M : Stainless Steel Bolts, Cap Screws & Studs

ASME F594 : Stainless Steel Nuts

ASME F594M : Stainless Steel Nuts

ASME F738 : Stainless Steel Metric Bolts, Screws & Studs

ASME F738M : Stainless Steel Metric Bolts, Screws & Studs

ASME F835 : Metric Socket Head Cap Screws

ASME F835M : Metric Socket Head Cap Screws

ASME F836 : Metric Stainless Steel Nuts

ASME F836M : Metric Stainless Steel Nuts

ASME F844 : Steel Washers for General Use

ASME F844M : Steel Washers for General Use

ASTM Fasteners

ASTM A193 : Alloy & Stainless Steel Bolting Material for High Temperature

ASTM A193M : Alloy & Stainless Steel Bolting Material for High Temperature

ASTM A194 : Alloy & Stainless Steel Nuts for High Temperature

ASTM A194M : Alloy & Stainless Steel Nuts for High Temperature

ASTM A307 : Carbon Steel Externally Threaded Fasteners

ASTM A307M : Carbon Steel Externally Threaded Fasteners

ASTM A320 : Alloy & Stainless Steel Bolting for Low Temperature

ASTM A320M : Alloy & Stainless Steel Bolting for Low Temperature

ASTM A325 : High Strength Bolts for Structural Joints

ASTM A325M : High Strength Bolts for Structural Joints

ASTM A354 : Quenched & Tempered Alloy Steel Bolts, Studs & Other Fasteners

ASTM A354M : Quenched & Tempered Alloy Steel Bolts, Studs & Other Fasteners

ASTM A437 : Alloy Steel turbine Bolting Specially Heat Treated for High Temperature

ASTM A437M : Alloy Steel turbine Bolting Specially Heat Treated for High Temperature

ASTM A449 : Quenched & Tempered Bolts & Studs

ASTM A449M : Quenched & Tempered Bolts & Studs

ASTM A453 : Bolting Material, High Temperature 50 to 120 ksi Yield Strength

ASTM A453M : Bolting Material, High Temperature 50 to 120 ksi Yield Strength

ASTM A489 : Carbon Steel Eyebolts

ASTM A489M : Carbon Steel Eyebolts

ASTM A490 : Heat Treated Structural Bolts, 150 ksi Tensile Strength

ASTM A490M : Heat Treated Structural Bolts, 150 ksi Tensile Strength

ASTM A540 : Alloy Steel Bolting for Special Applications

ASTM A540M : Alloy Steel Bolting for Special Applications

ASTM A563 : Carbon & Alloy Steel Nuts

ASTM A563M : Carbon & Alloy Steel Nuts

ASTM A574 : Alloy Steel Socket Head Cap Screws

ASTM A574M : Alloy Steel Socket Head Cap Screws

ASTM A687 : High Strength Non Headed Steel Bolts & Studs

ASTM A687M : High Strength Non Headed Steel Bolts & Studs

ASTM F436 : Hardened Flat Washers

ASTM F436M : Hardened Flat Washers

ASTM F467 : Nonferrous Nuts for General Use

ASTM F467M : Nonferrous Nuts for General Use

ASTM F468 : Nonferrous Bolts, Cap Screws, & Studs for General Use

ASTM F468M : Nonferrous Bolts, Cap Screws, & Studs for General Use

ASTM F541 : Alloy Steel Eyebolts

ASTM F541M : Alloy Steel Eyebolts

ASTM F568 : Carbon & Alloy Steel Metric Fasteners

ASTM F568M : Carbon & Alloy Steel Metric Fasteners

ASTM F593 : Stainless Steel Bolts, Cap Screws & Studs

ASTM F593M : Stainless Steel Bolts, Cap Screws & Studs

ASTM F594 : Stainless Steel Nuts

ASTM F594M : Stainless Steel Nuts

ASTM F738 : Stainless Steel Metric Bolts, Screws & Studs

ASTM F738M : Stainless Steel Metric Bolts, Screws & Studs

ASTM F835 : Metric Socket Head Cap Screws

ASTM F835M : Metric Socket Head Cap Screws

ASTM F836 : Metric Stainless Steel Nuts

ASTM F836M : Metric Stainless Steel Nuts

ASTM F844 : Steel Washers for General Use

ASTM F844M : Steel Washers for General Use

HEAT-TREATED ALLOY STUDS, BOLTS THREADED BARS & RODS

Chemical Composition

Elements	A354 Grades BC, BD		A193 Grade B7
	**See Note Below		Chromium-Molybdenum
	Range percent	Check variation over percent	Range percent	Check variation over or under percent
Carbon...	--	--	*0.38-0.48	0.02
Manganese...	--	--	0.750-1.00	0.04
Phosphorus, max...	0.04	0.005	0.04	0.005 over
Sulphur, max...	0.04	0.005	0.04	0.005 over
Silicon...	--	--	0.20-0.35	0.02
Chromium...	--	--	0.80-1.10	0.05
Molybdenum...	--	--	0.15-0.25	0.02

 

 

Elements			A193 Grade B16 Chromium-Molybdenum-Vanadium
			Range percent	Check variation over or under percent
Carbon...			0.36-0.44	0.02
Manganese...			0.45-0.70	0.03
Phosphorus, max...			0.04	0.005 over
Sulphur, max...			0.04	0.005 over
Silicon...			0.20-0.35	0.02
Chromium...			0.80-1.15	0.05
Molybdenum...			0.50-0.65	0.03
Vanadium...			0.25-0.35	0.03

 

Elements	A320 Grade L7		A320 Grade L43
	Chromium-Molybdenum (AISI 4140, 4142, 4145)		Nickel-Chromium-Molybdenum (AISI 4340)
	Range percent	Check variation over percent	Range percent	Check variation over or under percent
Carbon...	*0.38-0.48	0.02	0.38-0.148	0.02
Manganese...	0.75-1.00	0.04	0.60-0.85	0.03
Phosphorus, max...	0.04	0.005 over	0.04	0.005 over
Sulphur, max...	0.04	0.005 over	0.04	0.005 over
Silicon...	0.20-0.35	0.02	0.20-0.35	0.02
Nickel...	--	--	1.65-2.00	0.05
Chromium...	0.80-1.10	0.05	0.70-1.90	0.03
Molybdenum...	0.15-0.25	0.02	0.20-0.30	0.02

*For bar sizes over 3-1/2 in. to 4 in., inclusive, the carbon content may be 0.50 pct. max.

** Any alloy steel capable of meeting the tensile requirements of Specification A354 may be used.

Tensile Requirements

Grade	Diameter, in.	Min tempering temp F	Tensile strength min psi	Yield point min psi	Elongation in 2 in. min pct	Reduction of area min pct
A354 Grade BC	{2-1/2 and under {Over 2-1/2 to 4 incl.	850	125,000	109,000	16	50
A354 Grade BD	1-1/2 and under	850	115,000	99,000	16	45
A193 Grade B7 Chromium- Molybdenum	{2-1/2 and under {Over 2-1/2 to 4 incl. {Over 4 to 7 incl.	850	150,000	125,000	14	35
A193 Grade B16 Chromium- Molybdenum- Vanadium	{2-1/2 and under {Over 2-1/2 to 4 incl. {Over 4 to 7 incl.	1100 1100 1100	125,000 115,000 100,000	105,000 95,000 75,000	16 16 18	50 50 50
A320 Grade L7 Chromium- Molybdenum	2-1/2 and under	--	125,000	105,000	16	50
A320 Grade L43 Nickel-Chromium- Molybdenum	4 and under	--	125,000	105,000	16	50

Commonly used are the following grades of heat-treated alloy steel for high-pressure or extreme temperature service in diameters of 1/2 in. to 2 in., inclusive. Other grades and other diameters are available on special order.

ASTM A354, Grades BC and BD - heat-treated alloy steels for applications at normal atmospheric temperatures where high strength is required.

ASTM A193, Grade B7 - a heat-treated chromium-molybdenum steel widely used for medium high-temperature service.

ASTM A193, Grade B16 - a heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service.

ASTM A320, Grade L7 - This grade is intended for low-temperature service down to minus 150ºF and has a minimum Charpy impact value of 15 ft-lb at this temperature. Sizes 2-1/2 in. and under.

ASTM A320, Grade L43 - The same properties offered by Grade L7 in sizes up to 2-1/2 are obtainable up to 4 in. in Grade L43


 

ASTM, SAE AND ISO GRADE MARKINGS AND MECHANICAL PROPERTIES FOR STEEL FASTENERS

Identification Grade Mark	Specification	Fastener Description	Material	Nominal Size Range (in.)	Mechanical Properties
					Proof Load (psi)	Yield Strength Min (psi)	Tensile Strength Min (psi)
No Grade Mark	SAE J429 Grade 1	Bolts, Screws, Studs	Low or Medium Carbon Steel	1/4 thru 1-1/2	33,000	36,000	60,000
	ASTM A307 Grades A&B		Low Carbon Steel	1/4 thru 4	--	--
	SAE J429 Grade 2		Low or Medium Carbon Steel	1/4 thru 3/4 Over 3/4 to 1-1/2	55,000 33,000	57,000 36,000	74,000 60,000
No Grade Mark	SAE J429 Grade 4	Studs	Medium Carbon Cold Drawn Steel	1/4 thru 1-1/2	--	100,000	115,000
B5	ASTM A193 Grade B5		AISI 501	1/4 Thru 4	--	80,000	100,000
B6	ASTM A193 Grade B6		AISI 410			85,000	110,000
B7	ASTM A193 Grade B7		AISI 4140, 4142, OR 4105	1/4 thru 2-1/2 Over 2-1/2 thru 4 Over 4 thru 7	-- -- --	105,000 95,000 75,000	125,000 115,000 100,000
B16	ASTM A193 Grade B16		CrMoVa Alloy Steel			105,000 95,000 85,000	125,000 115,000 100,000
B8	ASTM A193 Grade B8		AISI 304	1/4 and larger	--	30,000	75,000
B8C	ASTM A193 Grade B8C		AISI 347
B8M	ASTM A193 Grade B8M		AISI 316
B8T	ASTM A193 Grade B8T	Bolts, Screws, Studs for High-Temperature Service	AISI 321	1/4 and larger	--	30,000	75,000
B8	ASTM A193 Grade B8		AISI 304 Strain Hardened	1/4 thr 3/4 Over 3/4 thru 1 Over 1 thru 1-1/4 Over 1-1/4 thru 1-1/2	-- -- -- --	100,000 80,000 65,000 50,000	125,000 115,000 105,000 100,000
B8C	ASTM A193 Grade B8C		AISI 347 Strain Hardened
B8M	ASTM A193 Grade B8M		AISI 316 Strain Hardened			95,000 80,000 65,000 50,000	110,000 100,000 95,000 90,000
B8T	ASTM A193 Grade B8T		AISI 321 Strain Hardened			100,000 80,000 65,000 50,000	125,000 115,000 105,000 100,000
L7	ASTM A320 Grade L7	Bolts, Screws, Studs for Low-Temperature Service	AISI 4140, 4142 or 4145	1/4 thru 2-1/2	--	105,000	125,000
L7A	ASTM A320 Grade L7A		AISI 4037
L7B	ASTM A320 Grade L7B		AISI 4137
L7C	ASTM A320 Grade LC7		AISI 8740
L43	ASTM A320 Grade L43		AISI 4340	1/4 thru 4	--	105,000	125,000
B8	ASTM A320 Grade B8	Bolts, Screws, Studs for Low-Temperature Service	AISI 304	1/4 and larger	--	30,000	75,000
B8C	ASTM A320 Grade B8C		AISI 347
B8T	ASTM A320 Grade B8T		AISI 321
B8F	ASTM A320 Grade B8F		AISI 303 or 303Se
B8M	ASTM A320 Grade B8M		AISI 316
B8	ASTM A320 Grade B8		AISI 304	1/4 thru 3/4 Over 3/4 thru 1 Over 1 thru 1-1/4 Over 1-1/4 thru 1-1/2	-- -- -- --	100,000 80,000 65,00 50,00	100,000 80,000 65,00 50,00
B8C	ASTM A320 Grade B8C		AISI 347
B8F	ASTM A320 Grade B8F		AISI 303 or 303Se
B8M	ASTM A320 Grade B8M		AISI 316
B8T	ASTM A320 Grade B8T		AISI 321
	SAE J429 Grade 5	Bolts, Screws, Studs	Medium Carbon Steel, Quenched and Tempered	1/4 thru 1 Over 1 to 1-1/2	85,000 74,000	92,000 81,000	120,000 105,000
	ASTM A449			1/4 thru 1 Over 1 to 1-1/2 Over 1-1/2 thru 3	85,000 74,000 55,000	92,000 81,000 58,000	120,000 105,000 90,000
	SAE J429 Grade 5.1	Sems	Low or Medium Carbon Steel, Quenched and Tempered	No. 6 thru 3/8	85,000	--	120,000
	SAE J429 Grade 5.2	Bolts, Screws, Studs	Low Carbon Martensitic Steel, Quenched and Tempered	1/4 thru 1	85,000	92,000	120,000
A325	ASTM A325 Type 1	High Strength Structural Bolts	Medium Carbon Steel, Quenched and Tempered	1/2 thru 1 1-1/8 thru 1-1/2	85,000 74,000	92,000 81,000	120,000 105,000
A325	ASTM A325 Type 2		Low Carbon Martensitic Steel, Quenched and Tempered	1/2 thru 1	85,000	92,000	120,000
A325	ASTM A325 Type 3		Atmospheric Corrosion Resisting Steel, Quenched and Tempered	1/2 thru 1 1-1/8 thru 1-1/2	85,000 74,000	92,000 81,000	120,000 105,000
BB	ASTM A354 Grade BB	Bolts, Studs	Alloy Steel, Quenched and Tempered	1/4 thru 2-1/2 2-3/4 thru 4	80,000 75,000	83,000 78,000	105,000 100,000
BC	ASTM A354 Grade BC				105,000 95,000	109,000 99,000	125,000 115,000
	SAE J429 Grade 7	Bolts, Screws,	Medium Carbon Alloy Steel, Quenched and Tempered 4	1/4 thru 1-1/2	105,000	115,000	133,000
	SAE J429 Grade 8	Bolts, Screws, Studs	Medium Carbon Alloy Steel, Quenched and Tempered	1/4 thru 1-1/2	120,000	130,000	150,000
	ASTM A354 Grade BD		Alloy Steel, Quenched and Tempered 4
No Grade Mark	SAE J429 Grade 8.1	Studs	Medium Carbon Alloy or SAE 1041 Modified Elevated Temperature Drawn Steel	1/4 thru 1-1/2	120,000	130,000	150,000
A490	ASTM A490	High Strength Structural Bolts	Alloy Steel, Quenched and Tempered	1/2 thru 1-1/2	120,000	130,000	150,000 min 170,000 max
No Grade Mark	ISO R898 Class 4.6	Bolts, Screws, Studs	Medium Carbon Steel, Quenched and Tempered	All Sizes thru 1-1/2	33,000	36,000	60,000
No Grade Mark	ISO R898 Class 5.8				55,000	57,000	74,000
8.8 or 88	ISO R898 Class 8.8		Alloy Steel, Quenched and Tempered		85,000	92,000	120,000
10.9 or 109	ISO R898 Class 10.9				120,000	130,000	150,000

 

FASTENER IDENTIFICATION MARKING

Grade Identification Marking	Specification	Material	Nominal Size In.	Proof Load Stress ksi	Hardness Rockwell		See Note
					Min	Max
No Mark	ASTM A563 - Grade 0	Carbon Steel	1/4 thru 1-1/2	69	B55	C32	3,4
	ASTM A563 - Grade A	Carbon Steel	1/4 thru 1-1/2	90	B68	C32	3,4
	ASTM A563 - Grade B	Carbon Steel	1/4 thru 1	120	B69	C32	3,4
			over 1 thru 1-1/2	105
	ASTM A563 - Grade C	Carbon Steel May be Quenched and Tampered	1/4 thru 4	144	B78	C38	5
	ASTM A563 - Grade C3	Atmospheric Corrosion Resistant Steel May be Quenched and Tampered	1/4 thru 4	144	B78	C38	5,9
	ASTM A563 - Grade D	Carbon Steel May be Quenched and Tampered	1/4 thru 4	150	B84	C38	6
	ASTM A563 - Grade DH	Carbon Steel Quenched and Tampered	1/4 thru 4	175	C24	C38	6
	ASTM A563 - Grade DH3	Atmospheric Corrosion Resistant Steel, Quenched and Tampered	1/4 thru 4	175	C24	C38	5,9
	ASTM A194 - Grade 1	Carbon Steel	1/4 thru 4	130	B70	--	7
	ASTM A194 - Grade 2	Medium Carbon Steel	1/4 thru 4	150	159	352	7,8
	ASTM A194 - Grade 2H	Medium Carbon Steel, Quenched and Tempered	1/4 thru 4	175	C24	C38	7
	ASTM A194 - Grade 2HM	Medium Carbon Steel, Quenched and Tempered	1/4 thru 4	150	159	237	7,8
	ASTM A194 - Grade 4	Medium Carbon Alloy Steel, Quenched and Tempered	1/4 thru 4	175	C24	C38	7
	ASTM A194 - Grade 7	Medium Carbon Alloy Steel, Quenched and Tempered	1/4 thru 4	175	C24	C38	7
	ASTM A194 - Grade 7M	Medium Carbon Alloy Steel, Quenched and Tempered	1/4 thru 4	150	159	237	7
See Note 1,2	10

NOTES:

1. In addition to the indicated grade marking, all grades, except A563 grades O, A and B, must be marked for manufacturer identification.
2. The markings shown for all grades of A194 nuts are for cold formed and hot forged nuts. When nuts are machined from bar stock the nut must be additionally marked with the letter 'B'.
3. Nuts are not required to be marked unless specified by the purchaser. When marked, the identification marking shall be the grade letter O, A or B.
4. Properties shown are those of nonplated or noncoated coarse thread hex nuts.
5. Properties shown are those of coarse thread heavy hex nuts.
6. Properties shown are those of coarse thread heavy hex nuts.
7. Properties shown are those of coarse 8-pitch thread heavy hex nuts.
8. Hardnesses are Brinell Hardness Numbers.
9. The nut manufacturer, at his option, may add other markings to indicate the use of atmospheric corrosion resistant steel.
10. Specifications --
    ASTM A563 -- Carbon and Alloy Steel Nuts.
    ASTM A194/A194M -- Carbon and Alloy Steel Nuts for Bolts for High Pressure and High Temperature Service

Mechanical Requirements for Stainless Steel Fasteners

Grade(1)	General Descpription of Material	Bolts, Screws and Studs						Nuts
		Full Size Bolts, Screws, Studs		Machine Test Sprecimens of Bolts, Screws, Studs			Hardness Rockwell	Proof Load Stress	Hardness Rockwell
		Yield (2) Strength	Tensile Strength	Yield (2) Strength	Tensile Strength	Elong- ation(3)
		Min psi	Min psi	Min psi	Min psi	% Min.	Min	psi	Min
303A	Austenitic Stainless Steel- Sol. Annealed	30,000	75,000	30,000	75,000	20	B75	75,000	B75
304-A	Austenitic Stainless Steel- Sol. Annealed	30,000	75,000	30,000	75,000	20	B75	75,000	B75
304	Austenitic Stainless Steel- Cold Worked	50,000	90,000	45,000	85,000	20	B85	90,000	B85
304-SH	Austenitic Stainless Steel- Strain Hardened	See Note 6	See Note 6	See Note 6	See Note 6	15	C25	See Note 6	C20
305-A	Austenitic Stainless Steel- Sol. Annealed	30,000	75,000	30,000	75,000	20	B70	75,000	B70
305	Austenitic Stainless Steel- Cold Worked	50,000	90,000	45,000	85,000	20	B85	90,000	B85
305-SH	Austenitic Stainless Steel- Strain Hardened	See Note 6	See Note 6	See Note 6	See Note 6	15	C25	See Note 6	C20
316-A	Austenitic Stainless Steel- Sol. Annealed	30,000	75,000	30,000	75,000	20	B70	75,000	B70
316	Austenitic Stainless Steel- Cold Worked	50,000	90,000	45,000	85,000	20	B85	90,000	B85
316-SH	Austenitic Stainless Steel- Strain Hardened	See Note 6	See Note 6	See Note 6	See Note 6	15	C25	See Note 6	C20
XM7-A	Austenitic Stainless Steel- Sol. Annealed	30,000	75,000	30,000	75,000	20	B70	75,000	B70
XM7	Austenitic Stainless Steel- Cold Worked	50,000	90,000	45,000	85,000	20	B85	90,000	B85
384-A	Austenitic Stainless Steel- Sol. Annealed	30,000	75,000	30,000	75,000	20	B70	75,000	B70
384	Austenitic Stainless Steel- Cold Worked	50,000	90,000	45,000	85,000	20	B85	90,000	B85
410-H	Martensitic Stainless Steel- Hardened and Tempered	95,000	125,000	95,000	125,000	20	C22	125,000	C22
410-HT	Martensitic Stainless Steel- Hardened and Tempered	135,000	180,000	135,000	180,000	12	C36	180,000	C36
416-H	Martensitic Stainless Steel- Hardened and Tempered	95,000	125,000	95,000	125,000	20	C22	125,000	C22
416-HT	Martensitic Stainless Steel- Hardened and Tempered	135,000	180,000	135,000	180,000	12	C36	180,000	C36
430	Ferritic Stainless Steel	40,000	70,000	40,000	70,000	20	B75	70,000	B75

 

Note 6. Austenitic stainless steel, strain hardened bolts, screws, studs, and nuts shall have the following strength per properties.

Product Size	Bolts, Screws, Studs				Nuts
	Tested Full Size		Machine Test Specimens,		Proof Load Stress
	Yield Strength	Tensile Strength	Yield Strength	Tensile Strength
in.	min psi	min psi	min psi	min psi	psi
to 5/8 in.	100,000	125,000	90,000	115,000	125,000
over 5/8 to 1 in.	70,000	105,000	65,000	100,000	105,000
over 1 to 1-1/2 in.	50,000	90,000	45,000	85,000	90,000

Notes for Table 10.

1. When only the ISO property class number is shown in Table 10, below, the class is standard in both ISO 898-1 and ASTM documents.  Properties specified in each are identical except for minor exceptions.  Where differences exist, the ASTM F 568M values are given.

2. To compute the tensile proof load, tensile yield strength, or tensile ultimate strength in kilonewtons (kN) for a bolt, screw, or stud, multiply the stress value (MPa) in Table 10 by the tensile stress area (mm^2) of the product's screw thread as given in Table 9 or Standard Metric Bolt Shank Dimensions, then divide this result by 1000.

3. In general, identification markings are located on the top of the head and preferably are raised.

4. Class 5.8 products are available in lengths 150 mm and less.

5. Caution is advised when considering the use of property class 12.9 products.  The capabilities of the fastener manufacturer, as well as the anticipated service environment, should be carefully considered.  Some environments may cause stress corrosion cracking of nonplated, as well as electroplated, products.

Inspection & Approval Certificates : C/W Certificate (Calibration Works Certificate) EN10204 3.1 Mill Test Certificate, NACE MR-0175 / ISO 15156, European Pressure Equipment Directive PED-97/23/EC, AD-2000-WO, ASME Boiler & Pressure Vessel Code Sec.II Part A Ed. 2008, API 6A (American Petroleum Institute), with 3.2 certificate duly Certified & Approved by LRS (Lloyd's Register), GL (Germanischer Lloyd), BV (Bureau Veritas), DNV (Det Norske Veritas), ABS (American Bureau of Shipping), SGS, TUV, RINA, IRS, NORSOK Approved Standard M-630, M-650 Rev.3

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