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Services & Products

A193

Alloy and Stainless Steel Bolting Material for High Temp.

A194

Alloy and Stainless Steel Nuts for High Temp.

A307

Carbon Steel Externally Threaded Fasteners

A320

Alloy and Stainless Steel Bolting for Low Temp.

A325

High Strength Bolts for Structural Joints

A354

Quenched and Tempered Alloy Steel Bolts, Studs and other Fasteners

A437

Allow Steel Turbine Bolting Specially Heat Treated for High Temp.

A449

Quenched and Tempered Bolts and Studs

A453

Bolting Material, High Temp., 50 to 120 KSI Yield Strength

A489

Carbon Steel Eyebolts

A490

Heat Treated Structural Bolts, 150 KSI Tensile Strength

A540

Alloy Steel Bolting for Special Application

A563

Carbon and Alloy Steel Nuts

A574

Alloy Steel Socket Head Cap Screws

A687

High Strength Non-Headed Steel Bolts and Studs

F436

Hardened Flat Washers

F467

Nonferrous Nuts for General Use

F468

Nonferrous Bolts, Cap Screws and Studs for General Use

F541

Alloy Steel Eyebolts

F593

Stainless Steel Bolts, Cap Screws and Studs

F594

Stainless Steel Nuts

F738

Stainless Steel Metric Bolts, Screws and Studs

bolts
Chisel point stud
Chisel point stud
Mechanical wedge anchor
Mechanical wedge anchor
Log shield
Log shield
Mechanical wedge anchor
Mechanical wedge anchor
Drop-in anchor
Drop-in anchor
Sleeve anchor
Sleeve anchor
Self-drilling anchor
Self-drilling anchor
Expansion shield
Expansion shield
bolts
High-Temperature and Low-Temperature Service
A193 Grade B7, B7M
Chromium-Molybdenum
(AISI 4140, 4142, 4145)
This is the most common Ferritic steel stud bolt, used for medium-high temperature service (-50° to 1100° F).
B7M: Used in hydrogen sulfide service.
A193 Grade B16
Chromium-Molybdenum-Vanadium
(AISI 4140-V, 4142-V, 4145-V)
This grade is used in high temperature, high pressure applications (-50° to 1100° F).
A193 Grade B8
Chromium-Molybdenum
(AISI 4140, 4142, 4145)
This grade is used for low temperature service ranging - 50° F max, without charpy impact test and - 150° F with charpy testing. Charpy impact testing for - 150° F service requires a minimum average of 20 ft./lb. for the required three tests at test temperature.
A193 Grade B8
Chromium-Nickel
(AISI 304)
These two grades of austenitic steel studs are used in corrosive environments having a temperature range of - 325° to 1500°F.
A193 Grade B8M
Chromium-Nickel
Molybdenum (AISI 316)
 

Nuts

Recommended nuts conforming to spec. A194 are available for any of the A193 materials listed. Call us for prices.
Upon request, we can supply mill test reports, if necessary, along with certificates of conformance with your orders. A service charge may be required.
A193 Grade B7, B7M | A193 Grade B16 | A320 Grade L7
Grade Diameter
(Inches)
Minimum Tempering
(F)
Tensile Strength
(Minimum psi – 000)
Yield Point
(Minimum psi – 000)
Hardness
(Brinell)
A193 Grade B7 2 ½ and under
Over 2 ½ to 4
1100
1100
125
115
105
95
A193 Grade B7M 2 ½ and under 1150 100 80 201-235
A193 Grade B16 2 ½ and under
Over 2 ½ to 4
1200
1200
125
110
105
95
 
A320 Grade L7 2 ½ and under   125 105  
A193 Grade B8
(Class 1) B8M
All diameters 75 30 223 max
A193 Grade B8
(Class 2)
Strain Hardened
¾ and under
Over ¾ thru 1
Over 1 thru 1 ¼
Over 1 ¼ thru 1 ½
125
115
105
100
100
85
65
50
320 max
A193 Grade B8M
(Class 2)
Strain Hardened
¾ and under
Over ¾ thru 1
Over 1 thru 1 ¼
Over 1 ¼ thru 1 ½
110
100
95
90
95
80
65
50
320 max
Grade A193 Grade B7
Diameter
(Inches)
2 ½ and under
Over 2 ½ to 4
Minimum Tempering
(F)
1100
1100
Tensile Strength
(Minimum psi – 000)
125
115
Yield Point
(Minimum psi – 000)
105
95
Hardness
(Brinell)
Grade A193 Grade B7M
Diameter
(Inches)
2 ½ and under
Minimum Tempering
(F)
1150
Tensile Strength
(Minimum psi – 000)
100
Yield Point
(Minimum psi – 000)
80
Hardness
(Brinell)
201-235
Grade A193 Grade B16
Diameter
(Inches)
2 ½ and under
Over 2 ½ to 4
Minimum Tempering
(F)
1200
1200
Tensile Strength
(Minimum psi – 000)
125
110
Yield Point
(Minimum psi – 000)
105
95
Hardness
(Brinell)
 
Grade A320 Grade L7
Diameter
(Inches)
2 ½ and under
Minimum Tempering
(F)
 
Tensile Strength
(Minimum psi – 000)
125
Yield Point
(Minimum psi – 000)
105
Hardness
(Brinell)
Grade A193 Grade B8
(Class 1) B8M
Diameter
(Inches)
All diameters
Minimum Tempering
(F)
Tensile Strength
(Minimum psi – 000)
75
Yield Point
(Minimum psi – 000)
30
Hardness
(Brinell)
223 max
Grade A193 Grade B8
(Class 2)
Strain Hardened
Diameter
(Inches)
¾ and under
Over ¾ thru 1
Over 1 thru 1 ¼
Over 1 ¼ thru 1 ½
Minimum Tempering
(F)
Tensile Strength
(Minimum psi – 000)
125
115
105
100
Yield Point
(Minimum psi – 000)
100
85
65
50
Hardness
(Brinell)
320 max
Grade A193 Grade B8M
(Class 2)
Strain Hardened
Diameter
(Inches)
¾ and under
Over ¾ thru 1
Over 1 thru 1 ¼
Over 1 ¼ thru 1 ½
Minimum Tempering
(F)
Tensile Strength
(Minimum psi – 000)
110
100
95
90
Yield Point
(Minimum psi – 000)
95
80
65
50
Hardness
(Brinell)
320 max

ASTM A325 Type 1-Heavy Hex Head

Material Normal Size Range (Inches) Mechanical Properties
Proof Land (psi) Yield Strength Minimum (psi) Tensile Strength Minimum (psi)
Medium Carbon Steel, Quenched and Tempered ½ thru 1
1 1/8 thru 1 ½
85,000
74,000
92,000
81,000
120,000
105,000
Material Medium Carbon Steel, Quenched and Tempered
Normal Size Range (Inches) ½ thru 1
1 1/8 thru 1 ½
Mechanical Properties
Proof Land (psi) 85,000
74,000
Yield Strength Minimum (psi) 92,000
81,000
Tensile Strength Minimum (psi) 120,000
105,000
High-strength
Structural washers

ASTM A325/A490
Load indicator washers