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System of Measurement System of Measurement |
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Length Length |
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Threading Threading |
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 | Fully Threaded |
 | Partially Threaded |
Thread Direction Thread Direction |
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Drive Style Drive Style |
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| External Hex | Hex |
Tensile Strength Tensile Strength |
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Hardness Hardness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Specifications Met Specifications Met |
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Socket Head Profile Socket Head Profile |
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Minimum Thread Length Minimum Thread Length |
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About Hex Head Screws and Bolts
More
About Socket Head Screws
More
Bronze Socket Head Screws
Bronze screws are about 40% stronger than brass screws and provide more corrosion resistance to salt water, gases, and sewage. They are nonmagnetic and electrically conductive. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Dia. | Ht. | Drive Size | Tensile Strength, psi | Pkg. Qty. | Pkg. | |
Silicon Bronze | |||||||||
1/4"-20 | |||||||||
| 3/4" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | 70,000 | 1 | 000000000 | 00000 |
| 1" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | 70,000 | 1 | 000000000 | 0000 |
5/16"-18 | |||||||||
| 3/4" | Fully Threaded | Coarse | 15/32" | 5/16" | 1/4" | 70,000 | 1 | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 15/32" | 5/16" | 1/4" | 70,000 | 1 | 000000000 | 0000 |
3/8"-16 | |||||||||
| 3/4" | Fully Threaded | Coarse | 9/16" | 3/8" | 5/16" | 70,000 | 1 | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 9/16" | 3/8" | 5/16" | 70,000 | 1 | 000000000 | 0000 |
Bronze Hex Head Screws
Fully Threaded
Partially Threaded
Bronze screws are 30% stronger than brass screws and provide more corrosion resistance to salt water, gases, and sewage. They are nonmagnetic and electrically conductive. Dimensions meet ASME B18.2.1 specifications. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Minimum Thread Length | Thread Spacing | Wd. | Ht. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
1/4"-20 | ||||||||||
| 3/8" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 25 | 000000000 | 000000 |
| 1/2" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 25 | 000000000 | 00000 |
| 5/8" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 25 | 000000000 | 00000 |
| 3/4" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 0000 |
| 7/8" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 0000 |
| 1 1/8" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 1 3/4" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 2" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 2 1/4" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 2 3/4" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 0000 |
| 3" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 0000 |
| 3 1/4" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 0000 |
| 3 1/2" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 4" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
5/16"-18 | ||||||||||
| 3/8" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 5/8" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 3/4" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 7/8" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 1 3/4" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 2 1/4" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 3" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 3 1/2" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 4" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 4 1/2" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 5" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
5/16"-24 | ||||||||||
| 1/2" | Fully Threaded | __ | Fine | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 3/4" | Fully Threaded | __ | Fine | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | Fine | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | __ | Fine | 1/2" | 13/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
3/8"-16 | ||||||||||
| 1/2" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 5/8" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 10 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 1 1/8" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 1 3/4" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 2" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 00000 |
| 2 1/4" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2 1/2" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2 3/4" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3 1/4" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3 1/2" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 4" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 4 1/2" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 4 3/4" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 5" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 5 1/2" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 6" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
3/8"-24 | ||||||||||
| 3/4" | Fully Threaded | __ | Fine | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 5 | 000000000 | 0000 |
| 7/8" | Fully Threaded | __ | Fine | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | Fine | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | Fine | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | Fine | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | Fine | 9/16" | 15/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
7/16"-14 | ||||||||||
| 3/4" | Fully Threaded | __ | Coarse | 5/8" | 17/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 5/8" | 17/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | Coarse | 5/8" | 17/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2 1/2" | Fully Threaded | __ | Coarse | 5/8" | 17/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3" | Fully Threaded | __ | Coarse | 5/8" | 17/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
1/2"-13 | ||||||||||
| 1/2" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 5/8" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 7/8" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1 3/4" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2 1/4" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2 1/2" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2 3/4" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3 1/4" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3 1/2" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3 3/4" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 4" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 4 1/2" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 5" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 5 1/2" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 6" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 6 1/2" | Partially Threaded | 1 1/2" | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 7" | Partially Threaded | 1 1/2" | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 7 1/2" | Partially Threaded | 1 1/2" | Coarse | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
1/2"-20 | ||||||||||
| 1" | Fully Threaded | __ | Fine | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | Fine | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | Fine | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3" | Fully Threaded | __ | Fine | 3/4" | 5/16" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
5/8"-11 | ||||||||||
| 3/4" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 1 3/4" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2 1/4" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2 3/4" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 3 1/4" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 3 1/2" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 4" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 4 1/2" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 4 3/4" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 5" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 5 1/2" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 6" | Fully Threaded | __ | Coarse | 15/16" | 3/8" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
3/4"-10 | ||||||||||
| 1 1/2" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 1 3/4" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 2" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 2 1/4" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 3" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 4" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 5" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 6" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |