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About Hex Head Screws and Bolts
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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 | 0000 |
| 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 | 0000 |
| 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 | 00000 |
| 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 |