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About Hex Head Screws and Bolts
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Fiberglass Flanged Hex Head Screws
Fully Threaded
Partially Threaded
Made from polyurethane reinforced with glass fiber, these screws are chemical and oil resistant, nonconductive, and lightweight. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Head height includes the flange. Length is measured from under the flange.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Wd. | Ht. | Flange Dia. | Temp. Range, ° F | Pkg. Qty. | Pkg. | |
Fiberglass | ||||||||||
1/4"-20 | ||||||||||
| 1/2" | Fully Threaded | __ | Coarse | 3/8" | 9/32" | 9/16" | -60° to 190° | 10 | 000000000 | 000000 |
| 5/8" | Fully Threaded | __ | Coarse | 3/8" | 9/32" | 9/16" | -60° to 190° | 10 | 000000000 | 00000 |
| 3/4" | Fully Threaded | __ | Coarse | 3/8" | 9/32" | 9/16" | -60° to 190° | 10 | 000000000 | 00000 |
| 7/8" | Fully Threaded | __ | Coarse | 3/8" | 9/32" | 9/16" | -60° to 190° | 10 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | Coarse | 3/8" | 9/32" | 9/16" | -60° to 190° | 10 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 3/8" | 9/32" | 9/16" | -60° to 190° | 5 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 3/8" | 9/32" | 9/16" | -60° to 190° | 5 | 000000000 | 0000 |
3/8"-16 | ||||||||||
| 1/2" | Fully Threaded | __ | Coarse | 9/16" | 25/64" | 51/64" | -60° to 190° | 10 | 000000000 | 00000 |
| 3/4" | Fully Threaded | __ | Coarse | 9/16" | 25/64" | 51/64" | -60° to 190° | 10 | 000000000 | 00000 |
| 7/8" | Fully Threaded | __ | Coarse | 9/16" | 25/64" | 51/64" | -60° to 190° | 10 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | Coarse | 9/16" | 25/64" | 51/64" | -60° to 190° | 5 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 9/16" | 25/64" | 51/64" | -60° to 190° | 5 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 9/16" | 25/64" | 51/64" | -60° to 190° | 5 | 000000000 | 0000 |
| 2" | Partially Threaded | 1 1/2" | Coarse | 9/16" | 25/64" | 51/64" | -60° to 190° | 5 | 000000000 | 0000 |
| 2 1/2" | Partially Threaded | 1 3/4" | Coarse | 9/16" | 25/64" | 51/64" | -60° to 190° | 5 | 000000000 | 00000 |
| 3" | Partially Threaded | 2" | Coarse | 9/16" | 25/64" | 51/64" | -60° to 190° | 5 | 000000000 | 00000 |
1/2"-13 | ||||||||||
| 3/4" | Fully Threaded | __ | Coarse | 3/4" | 1/2" | 1 1/16" | -60° to 190° | 10 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | Coarse | 3/4" | 1/2" | 1 1/16" | -60° to 190° | 5 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 3/4" | 1/2" | 1 1/16" | -60° to 190° | 5 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 3/4" | 1/2" | 1 1/16" | -60° to 190° | 5 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | Coarse | 3/4" | 1/2" | 1 1/16" | -60° to 190° | 5 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | __ | Coarse | 3/4" | 1/2" | 1 1/16" | -60° to 190° | 5 | 000000000 | 00000 |
| 3" | Partially Threaded | 2 1/2" | Coarse | 3/4" | 1/2" | 1 1/16" | -60° to 190° | 1 | 000000000 | 0000 |
| 3 1/2" | Partially Threaded | 2 1/2" | Coarse | 3/4" | 1/2" | 1 1/16" | -60° to 190° | 1 | 000000000 | 0000 |
| 4" | Partially Threaded | 2" | Coarse | 3/4" | 1/2" | 1 1/16" | -60° to 190° | 1 | 000000000 | 0000 |
Fiberglass Hex Head Screws
Fully Threaded
Partially Threaded
Made of polyurethane reinforced with glass fiber, these screws are stronger than our plastic hex head screws, nonconductive, and lightweight. They resist oil, chemicals, and acids better than nylon and PVC screws. Unlike nylon screws, they won’t absorb moisture. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Wd. | Ht. | Color | Temperature Range, °F | Tensile Strength | Pkg. Qty. | Pkg. | |
1/4"-20 | |||||||||||
| 1/2" | Fully Threaded | __ | Coarse | 7/16" | 13/64" | Gray | -60° to 190° | Not Rated | 10 | 000000000 | 000000 |
| 3/4" | Fully Threaded | __ | Coarse | 7/16" | 13/64" | Gray | -60° to 190° | Not Rated | 10 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | Coarse | 7/16" | 13/64" | Gray | -60° to 190° | Not Rated | 10 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 7/16" | 13/64" | Gray | -60° to 190° | Not Rated | 10 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 7/16" | 13/64" | Gray | -60° to 190° | Not Rated | 5 | 000000000 | 0000 |
5/16"-18 | |||||||||||
| 1 1/2" | Partially Threaded | 1 1/4" | Coarse | 1/2" | 7/32" | Gray | -60° to 190° | Not Rated | 10 | 000000000 | 00000 |
| 2" | Partially Threaded | 1 1/2" | Coarse | 1/2" | 7/32" | Gray | -60° to 190° | Not Rated | 5 | 000000000 | 0000 |
3/8"-16 | |||||||||||
| 1 1/2" | Fully Threaded | __ | Coarse | 9/16" | 1/4" | Gray | -60° to 190° | Not Rated | 10 | 000000000 | 00000 |
| 2" | Partially Threaded | 1 1/2" | Coarse | 9/16" | 1/4" | Gray | -60° to 190° | Not Rated | 5 | 000000000 | 0000 |
| 2 1/2" | Partially Threaded | 1 3/4" | Coarse | 9/16" | 1/4" | Gray | -60° to 190° | Not Rated | 5 | 000000000 | 0000 |
| 3" | Partially Threaded | 2" | Coarse | 9/16" | 1/4" | Gray | -60° to 190° | Not Rated | 5 | 000000000 | 00000 |
5/8"-11 | |||||||||||
| 1 1/2" | Fully Threaded | __ | Coarse | 15/16" | 13/32" | Gray | -60° to 190° | Not Rated | 5 | 000000000 | 00000 |
| 2" | Fully Threaded | __ | Coarse | 15/16" | 13/32" | Gray | -60° to 190° | Not Rated | 5 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | __ | Coarse | 15/16" | 13/32" | Gray | -60° to 190° | Not Rated | 1 | 000000000 | 0000 |
| 3" | Fully Threaded | __ | Coarse | 15/16" | 13/32" | Gray | -60° to 190° | Not Rated | 1 | 000000000 | 0000 |
| 3 1/2" | Fully Threaded | __ | Coarse | 15/16" | 13/32" | Gray | -60° to 190° | Not Rated | 1 | 000000000 | 0000 |
| 4" | Fully Threaded | __ | Coarse | 15/16" | 13/32" | Gray | -60° to 190° | Not Rated | 1 | 000000000 | 0000 |
| 5" | Partially Threaded | 2 3/4" | Coarse | 15/16" | 13/32" | Gray | -60° to 190° | Not Rated | 1 | 000000000 | 0000 |
3/4"-10 | |||||||||||
| 1 1/2" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | Gray | -60° to 190° | Not Rated | 1 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | Gray | -60° to 190° | Not Rated | 1 | 000000000 | 0000 |
| 2 1/2" | Partially Threaded | 2 1/4" | Coarse | 1 1/8" | 15/32" | Gray | -60° to 190° | Not Rated | 1 | 000000000 | 0000 |
| 3" | Partially Threaded | 2 1/4" | Coarse | 1 1/8" | 15/32" | Gray | -60° to 190° | Not Rated | 1 | 000000000 | 0000 |
| 4" | Partially Threaded | 2 3/4" | Coarse | 1 1/8" | 15/32" | Gray | -60° to 190° | Not Rated | 1 | 000000000 | 0000 |
| 5" | Partially Threaded | 2 3/4" | Coarse | 1 1/8" | 15/32" | Gray | -60° to 190° | Not Rated | 1 | 000000000 | 0000 |