About Hex Head Screws and Bolts
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T-Bolts with Collar
Also known as clamping pins, these bolts have a collar that slides along the shaft and can be welded in place to hold work and prevent over torquing. The large T-shaped head provides a secure grip for steady tightening. The black-oxide finish provides corrosion resistance in dry environments. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size  | Lg. | Threading | Thread Lg. | Thread Spacing | Wd. | Thick. | Tensile Strength, psi | Each | |
Black-Oxide Steel | |||||||||
| 10-24 | 3 1/4" | Partially Threaded | 3/4" | Coarse | 1 1/2" | 1/4" | 70,000 | 000000000 | 000000 |
| 1/4"-20 | 4 3/8" | Partially Threaded | 3/4" | Coarse | 2 1/2" | 3/8" | 70,000 | 000000000 | 00000 |
| 5/16"-18 | 4 7/16" | Partially Threaded | 3/4" | Coarse | 3" | 7/16" | 70,000 | 000000000 | 00000 |
| 3/8"-16 | 5" | Partially Threaded | 3/4" | Coarse | 3 1/2" | 1/2" | 70,000 | 000000000 | 00000 |
| 1/2"-13 | 5 5/8" | Partially Threaded | 3/4" | Coarse | 3 1/2" | 5/8" | 70,000 | 000000000 | 00000 |
| 1/2"-13 | 7 5/8" | Partially Threaded | 3/4" | Coarse | 3 1/2" | 5/8" | 70,000 | 000000000 | 00000 |
| 5/8"-11 | 6 3/8" | Partially Threaded | 3/4" | Coarse | 3 1/2" | 7/8" | 70,000 | 000000000 | 00000 |
| 3/4"-10 | 6 7/8" | Partially Threaded | 3/4" | Coarse | 3 1/2" | 7/8" | 70,000 | 000000000 | 00000 |