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System of Measurement System of Measurement |
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Head Type Head Type |
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 | Hex |
Threading Threading |
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 | Fully Threaded |
 | Partially Threaded |
Fastener Strength Grade/Class Fastener StrengthGrade/Class |
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Thread Direction Thread Direction |
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Finish Finish |
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Drive Style Drive Style |
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 | External Hex |
Thread Spacing Thread Spacing |
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Thread Fit Thread Fit |
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Tension Indicated Tension Indicated |
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Thread Type Thread Type |
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Hardness Hardness |
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Tensile Strength Tensile Strength |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Hex Head Screws and Bolts
More
Tension-Indicating Hex Head Screws
Fully Threaded
Partially Threaded
An indicator dot changes from red to black when the screw is properly tightened. If it comes loose, the dot changes back to red. Also known as SmartBolts. Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. The zinc yellow-chromate plating provides corrosion resistance in wet environments. 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. | Tension Indicated, lbs. | Indicator Temperature Range, °F | Tensile Strength, psi | Each | |
Zinc Yellow-Chromate Plated Grade 8 Steel  | ||||||||||
1/2"-13 | ||||||||||
| 1 1/2" | Fully Threaded | __ | Coarse | 3/4" | 3/8" | 10,000 | 0° to 165° | 150,000 | 000000000 | 000000 |
| 1 3/4" | Fully Threaded | __ | Coarse | 3/4" | 3/8" | 10,000 | 0° to 165° | 150,000 | 000000000 | 00000 |
| 2" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 3/8" | 10,000 | 0° to 165° | 150,000 | 000000000 | 00000 |
| 2 1/2" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 3/8" | 10,500 | 0° to 165° | 150,000 | 000000000 | 00000 |
| 3" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 3/8" | 12,000 | 0° to 165° | 150,000 | 000000000 | 00000 |
5/8"-11 | ||||||||||
| 1 1/2" | Fully Threaded | __ | Coarse | 15/16" | 29/64" | 17,000 | 0° to 165° | 150,000 | 000000000 | 00000 |
| 1 3/4" | Fully Threaded | __ | Coarse | 15/16" | 29/64" | 17,000 | 0° to 165° | 150,000 | 000000000 | 00000 |
| 2" | Fully Threaded | __ | Coarse | 15/16" | 29/64" | 17,000 | 0° to 165° | 150,000 | 000000000 | 00000 |
| 2 1/2" | Partially Threaded | 1 1/2" | Coarse | 15/16" | 29/64" | 17,000 | 0° to 165° | 150,000 | 000000000 | 00000 |
| 3" | Partially Threaded | 1 1/2" | Coarse | 15/16" | 29/64" | 19,000 | 0° to 165° | 150,000 | 000000000 | 00000 |
3/4"-10 | ||||||||||
| 2" | Fully Threaded | __ | Coarse | 1 1/8" | 17/32" | 26,000 | 0° to 165° | 150,000 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | __ | Coarse | 1 1/8" | 17/32" | 26,000 | 0° to 165° | 150,000 | 000000000 | 00000 |
| 3" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 17/32" | 27,000 | 0° to 165° | 150,000 | 000000000 | 00000 |