System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Fastener Strength Grade/Class Fastener StrengthGrade/Class |
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Threading Threading |
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![]() | Fully Threaded |
![]() | Partially Threaded |
Head Type Head Type |
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![]() | Hex |
Material Material |
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Thread Spacing Thread Spacing |
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Specifications Met Specifications Met |
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Thread Direction Thread Direction |
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Drive Style Drive Style |
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Thread Fit Thread Fit |
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Tensile Strength Tensile Strength |
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Hardness Hardness |
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Thread Type Thread Type |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Body Style Body Style |
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![]() | With Shoulder |
Eye Style Eye Style |
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![]() | Closed |
About Threaded Studs and Rods
More
About Hex Head Screws and Bolts
More
Steel Heavy Hex Head Screws for High-Pressure Applications


These Grade B7 steel screws are nearly twice as strong as our stainless steel screws for high-pressure applications. Also known as pressure bolts, they meet the high-pressure and high-temperature regulations of ASTM A193 and are used to secure pressure tanks, valves, and flanges. Length is measured from under the head. Screws should be used with ASTM A194 nuts.
Partially threaded screws come with precise threaded and unthreaded portions, allowing you to place only the stronger unthreaded portion (grip) in joints subjected to sideways forces.
For technical drawings and 3-D models, click on a part number.
Screws | |||||||||||||
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Head | Steel Hex Nuts | ||||||||||||
Lg. | Threading | Thread Spacing | Thread Lg. | Grip Lg. | Wd. | Ht. | Tensile Strength, psi | Specifications Met | Each | Pkg. Qty. | Pkg. | ||
ASTM Grade B7 Steel | |||||||||||||
1 1/8"-8 | |||||||||||||
2 1/2" | Fully Threaded | Coarse | __ | __ | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 000000 | 1 | 000000000 | 00000 |
2 3/4" | Fully Threaded | Coarse | __ | __ | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
3" | Fully Threaded | Coarse | __ | __ | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
3 1/4" | Fully Threaded | Coarse | __ | __ | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
3 1/2" | Fully Threaded | Coarse | __ | __ | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
4" | Partially Threaded | Coarse | 2 1/2" | 1 1/2" | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
4 1/4" | Partially Threaded | Coarse | 2 1/2" | 1 3/4" | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
4 1/2" | Partially Threaded | Coarse | 2 1/2" | 2" | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
4 3/4" | Partially Threaded | Coarse | 2 1/2" | 2 1/4" | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
5" | Partially Threaded | Coarse | 2 1/2" | 2 1/2" | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
5 1/2" | Partially Threaded | Coarse | 2 1/2" | 3" | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
6" | Partially Threaded | Coarse | 2 1/2" | 3 1/2" | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
6 1/2" | Partially Threaded | Coarse | 2 3/4" | 3 3/4" | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
7" | Partially Threaded | Coarse | 2 3/4" | 4 1/4" | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
8" | Partially Threaded | Coarse | 2 3/4" | 5 1/4" | 1 13/16" | 11/16" | 125,000 | ASTM A193 | 000000000 | 00000 | 1 | 000000000 | 0000 |
Medium-Strength Steel Threaded Rods—Grade B7

These Grade B7 threaded rods meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks, valves, and flanges.
For technical drawings and 3-D models, click on a part number.
Lg. | Tensile Strength, psi | Hardness | Specifications Met | Each | |
1 1/8"-8 | |||||
---|---|---|---|---|---|
5" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
6" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
7" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
8" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
1ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
3ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
6ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 000000 |
Rotating Eyebolts—For Lifting

Unlike conventional eyebolts, you can rotate the eye 360° to match the angle of your load.
Powder-coated steel eyebolts are impact resistant, but less corrosion resistant than stainless steel eyebolts. They include a removable key for tightening the bolt.
Note: Capacities listed are for vertical lifting only. Eyebolts with shoulder can be used for angular lifting up to 45°, but the capacities will be significantly reduced. For angular lifting, we recommend Hoist Rings.
Warning: Never use to lift people or items over people.
For technical drawings and 3-D models, click on a part number.

Thread | With Shoulder | |||||||
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Size | Lg. | Shank Lg. | Overall Lg. | Eye Dia. | Vertical Capacity, lbs. | Color | Each | |
Powder-Coated Steel | ||||||||
1 1/8"-8 | 1 13/32" | 1 13/32" | 5" | 1 29/32" | 7,050 | Pink | 00000000 | 0000000 |