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About Hex Head Screws and Bolts
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Medium-Strength Steel Hold-Down Bolts
Made from steel comparable to Grade 5 steel, these bolts are suitable for most work-holding applications. They’re often used to hold sieve-shaker screens in place and have a hook on one end that grabs as the other end is tightened with a nut. Material meets SAE J429 specifications for quality.
Hook | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Lg. | Thread Spacing  | Lg. | Thick. | Angle | Tensile Strength, psi | Specifications Met | Each | |
Steel Bolts with Round Hook | ||||||||||
1/2"-13 | ||||||||||
| 4" | Partially Threaded | 2" | Coarse | 1 1/4" | 1/2" | 63° | 120,000 | SAE J429 | 000000000 | 00000 |
| 4 1/2" | Partially Threaded | 2" | Coarse | 1 1/4" | 1/2" | 63° | 120,000 | SAE J429 | 000000000 | 0000 |
| 5" | Partially Threaded | 3" | Coarse | 1 1/4" | 1/2" | 63° | 120,000 | SAE J429 | 000000000 | 0000 |
| 6" | Partially Threaded | 3" | Coarse | 1 1/4" | 1/2" | 63° | 120,000 | SAE J429 | 000000000 | 0000 |
| 7" | Partially Threaded | 3" | Coarse | 1 1/4" | 1/2" | 63° | 120,000 | SAE J429 | 000000000 | 0000 |
5/8"-11 | ||||||||||
| 5" | Partially Threaded | 3" | Coarse | 1 1/4" | 5/8" | 63° | 120,000 | SAE J429 | 000000000 | 0000 |
| 6" | Partially Threaded | 3" | Coarse | 1 1/4" | 5/8" | 63° | 120,000 | SAE J429 | 000000000 | 00000 |
| 7" | Partially Threaded | 3" | Coarse | 1 1/4" | 5/8" | 63° | 120,000 | SAE J429 | 000000000 | 00000 |
| 8" | Partially Threaded | 3" | Coarse | 1 1/4" | 5/8" | 63° | 120,000 | SAE J429 | 000000000 | 00000 |
Low-Strength Steel Hold-Down Bolts
Round
Flat
About half the strength of medium-strength bolts, these bolts are for light duty work-holding. They’re often used to hold batteries in place and have a hook on one end that grabs as the other end is tightened with a nut. The zinc plating provides corrosion resistance in wet environments.
Hook | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Lg. | Thread Spacing | Lg. | Thick. | Angle | Tensile Strength, psi | Includes | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel Bolts with Round Hooks | |||||||||||
1/4"-20 | |||||||||||
| 5" | Partially Threaded | 2 1/4" | Coarse | 3/4" | 1/4" | 60° | 60,000 | Nut, Washer | 2 | 000000000 | 00000 |
| 8" | Partially Threaded | 3 7/8" | Coarse | 3/4" | 1/4" | 90° | 60,000 | Nut, Washer | 2 | 000000000 | 00000 |
| 9 1/4" | Partially Threaded | 2 3/4" | Coarse | 11/16" | 1/4" | 55° | 60,000 | Nut, Washer | 2 | 000000000 | 00000 |
| 10" | Partially Threaded | 3 13/16" | Coarse | 3/4" | 1/4" | 90° | 60,000 | Nut, Washer | 2 | 000000000 | 00000 |
| 10" | Partially Threaded | 3 13/16" | Coarse | 3/4" | 1/4" | 30° | 60,000 | Nut, Washer | 2 | 000000000 | 00000 |
5/16"-18 | |||||||||||
| 6 3/4" | Partially Threaded | 2 1/4" | Coarse | 3/4" | 5/16" | 60° | 60,000 | Nut, Washer | 2 | 000000000 | 0000 |
| 10 5/16" | Partially Threaded | 8" | Coarse | 9/16" | 5/16" | 60° | 60,000 | Nut, Washer | 2 | 000000000 | 0000 |
Zinc-Plated Steel Bolts with Flat Hooks | |||||||||||
1/4"-20 | |||||||||||
| 4 3/4" | Partially Threaded | 2 3/4" | Coarse | 1/2" | 5/32" | 45° | 60,000 | Nut, Washer | 2 | 000000000 | 0000 |
| 9" | Partially Threaded | 2 3/4" | Coarse | 1/2" | 5/32" | 45° | 60,000 | Nut, Washer | 2 | 000000000 | 00000 |
5/16"-18 | |||||||||||
| 5 7/8" | Partially Threaded | 2 9/16" | Coarse | 5/16" | 5/32" | 20° | 60,000 | Nut, Washer | 1 | 000000000 | 0000 |
| 10 5/16" | Partially Threaded | 8" | Coarse | 1/2" | 5/32" | 45° | 60,000 | Nut, Washer | 2 | 000000000 | 00000 |
3/8"-16 | |||||||||||
| 10" | Partially Threaded | 2 3/4" | Coarse | 1/2" | 5/32" | 45° | 60,000 | Nut, Washer | 1 | 000000000 | 0000 |