System of Measurement System of Measurement |
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Threading Threading |
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Material Material |
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Finish Finish |
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Rounded Head Style Rounded Head Style |
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Thread Direction Thread Direction |
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Tensile Strength Tensile Strength |
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Thread Fit Thread Fit |
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Thread Spacing Thread Spacing |
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Thread Type Thread Type |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Hex Head Screws and Bolts
More
Medium-Strength Grade 5 Steel Knurled-Neck Carriage Bolts
Made from Grade 5 steel, these bolts are suitable for fastening most machinery and equipment and are zinc plated to resist corrosion in wet environments. A knurled neck grips the inside of the hole to keep them from turning when tightening a nut. A smooth, rounded head provides a finished look. Grade 5 steel bolts are marked with three radial lines. Material meets SAE J429 specifications for quality. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | Neck | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Dia. | Ht. | Dia. | Lg. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Grade 5 Steel | ||||||||||||
1/4"-20 | ||||||||||||
| 3/4" | Partially Threaded | 3/8" | Coarse | 0.594" | 0.145" | 0.27" | 0.28" | 120,000 | SAE J429 | 50 | 000000000 | 000000 |
| 1" | Partially Threaded | 7/16" | Coarse | 0.594" | 0.145" | 0.27" | 0.44" | 120,000 | SAE J429 | 50 | 000000000 | 00000 |
| 1 1/4" | Partially Threaded | 1/2" | Coarse | 0.594" | 0.145" | 0.27" | 0.63" | 120,000 | SAE J429 | 50 | 000000000 | 00000 |
| 1 1/2" | Partially Threaded | 3/4" | Coarse | 0.594" | 0.145" | 0.27" | 0.63" | 120,000 | SAE J429 | 50 | 000000000 | 00000 |
| 2" | Partially Threaded | 3/4" | Coarse | 0.594" | 0.145" | 0.27" | 0.63" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
5/16"-18 | ||||||||||||
| 1" | Partially Threaded | 7/16" | Coarse | 0.719" | 0.176" | 0.34" | 0.44" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
| 1 1/4" | Partially Threaded | 1/2" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
| 1 1/2" | Partially Threaded | 3/4" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
| 1 3/4" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
| 2" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
| 2 1/2" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
3/8"-16 | ||||||||||||
| 1" | Partially Threaded | 7/16" | Coarse | 0.844" | 0.208" | 0.41" | 0.44" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
| 1 1/4" | Partially Threaded | 1/2" | Coarse | 0.844" | 0.208" | 0.41" | 0.63" | 120,000 | SAE J429 | 10 | 000000000 | 0000 |
| 1 1/2" | Partially Threaded | 3/4" | Coarse | 0.844" | 0.208" | 0.41" | 0.63" | 120,000 | SAE J429 | 10 | 000000000 | 0000 |
| 1 3/4" | Partially Threaded | 1" | Coarse | 0.844" | 0.208" | 0.41" | 0.63" | 120,000 | SAE J429 | 10 | 000000000 | 00000 |
| 2" | Partially Threaded | 1" | Coarse | 0.844" | 0.208" | 0.41" | 0.63" | 120,000 | SAE J429 | 10 | 000000000 | 00000 |
| 2 1/2" | Partially Threaded | 1" | Coarse | 0.844" | 0.208" | 0.41" | 0.63" | 120,000 | SAE J429 | 10 | 000000000 | 00000 |
| 3" | Partially Threaded | 1" | Coarse | 0.844" | 0.208" | 0.41" | 0.63" | 120,000 | SAE J429 | 10 | 000000000 | 00000 |
Low-Strength Steel Knurled-Neck Carriage Bolts
About half the strength of medium-strength bolts, these bolts are for light duty fastening. The zinc plating provides corrosion resistance in wet environments. A knurled neck grips the inside of the hole to keep them from turning when tightening a nut. A smooth, rounded head provides a finished look. Material meets ASTM A307 and SAE J429 specifications for quality. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | Neck | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Dia. | Ht. | Dia. | Lg. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Grade 2 Steel | ||||||||||||
1/4"-20 | ||||||||||||
| 3/4" | Fully Threaded | __ | Coarse | 0.594" | 0.145" | 0.27" | 0.28" | 60,000 | ASTM A307, SAE J429 | 50 | 000000000 | 000000 |
| 1" | Fully Threaded | __ | Coarse | 0.594" | 0.145" | 0.27" | 0.44" | 60,000 | ASTM A307, SAE J429 | 50 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 0.594" | 0.145" | 0.27" | 0.63" | 60,000 | ASTM A307, SAE J429 | 50 | 000000000 | 00000 |
| 1 1/2" | Partially Threaded | 3/4" | Coarse | 0.594" | 0.145" | 0.27" | 0.63" | 60,000 | ASTM A307, SAE J429 | 50 | 000000000 | 00000 |
| 1 3/4" | Partially Threaded | 3/4" | Coarse | 0.594" | 0.145" | 0.27" | 0.63" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 0000 |
| 2" | Partially Threaded | 3/4" | Coarse | 0.594" | 0.145" | 0.27" | 0.63" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 2 1/2" | Partially Threaded | 3/4" | Coarse | 0.594" | 0.145" | 0.27" | 0.63" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 3" | Partially Threaded | 3/4" | Coarse | 0.594" | 0.145" | 0.27" | 0.63" | 60,000 | ASTM A307, SAE J429 | 10 | 000000000 | 00000 |
5/16"-18 | ||||||||||||
| 3/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.34" | 0.28" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.34" | 0.44" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 60,000 | ASTM A307, SAE J429 | 10 | 000000000 | 00000 |
| 2" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 2 1/2" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 3" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 60,000 | ASTM A307, SAE J429 | 10 | 000000000 | 00000 |
3/8"-16 | ||||||||||||
| 3/4" | Fully Threaded | __ | Coarse | 0.844" | 0.208" | 0.41" | 0.28" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | Coarse | 0.844" | 0.208" | 0.41" | 0.44" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 0.844" | 0.208" | 0.41" | 0.63" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 0.844" | 0.208" | 0.41" | 0.63" | 60,000 | ASTM A307, SAE J429 | 5 | 000000000 | 00000 |
| 2" | Partially Threaded | 1" | Coarse | 0.844" | 0.208" | 0.41" | 0.63" | 60,000 | ASTM A307, SAE J429 | 10 | 000000000 | 00000 |
| 2 1/2" | Partially Threaded | 1" | Coarse | 0.844" | 0.208" | 0.41" | 0.63" | 60,000 | ASTM A307, SAE J429 | 10 | 000000000 | 00000 |
| 3" | Partially Threaded | 1" | Coarse | 0.844" | 0.208" | 0.41" | 0.63" | 60,000 | ASTM A307, SAE J429 | 5 | 000000000 | 00000 |
Ribbed Elevator Bolts
Ribs under the head dig into the surface of soft metal and plastic to keep the bolt from turning when tightening a nut. These bolts are commonly used in tight spaces with moving parts, such as grain elevators and other belting systems, because the smooth, low-profile head provides a flush fit when installed. Length is measured from the top of the head.
Black-oxide steel bolts are mildly corrosion resistant in dry environments.
Zinc-plated steel bolts resist corrosion in wet environments.
18-8 stainless steel bolts have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Head | Neck | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Dia. | Ht. | Dia. | Lg. | Tensile Strength, psi | Includes | Pkg. Qty. | Pkg. | |
Black-Oxide Grade 2 Steel | |||||||||||
1/4"-20 | |||||||||||
| 3/4" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 70,000 | Nut | 25 | 000000000 | 00000 |
| 1" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 70,000 | Nut | 25 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 70,000 | Nut | 25 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 70,000 | Nut | 25 | 000000000 | 0000 |
5/16"-18 | |||||||||||
| 1" | Fully Threaded | Coarse | 7/8" | 7/64" | 0.3" | 0.15" | 70,000 | Nut | 25 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | Coarse | 7/8" | 7/64" | 0.3" | 0.15" | 70,000 | Nut | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 7/8" | 7/64" | 0.3" | 0.15" | 70,000 | Nut | 10 | 000000000 | 0000 |
Zinc-Plated Grade 2 Steel | |||||||||||
1/4"-20 | |||||||||||
| 3/4" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 70,000 | Nut | 25 | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 70,000 | Nut | 25 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 70,000 | Nut | 25 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 70,000 | Nut | 25 | 000000000 | 00000 |
5/16"-18 | |||||||||||
| 1" | Fully Threaded | Coarse | 7/8" | 7/64" | 0.3" | 0.15" | 70,000 | Nut | 25 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | Coarse | 7/8" | 7/64" | 0.3" | 0.15" | 70,000 | Nut | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 7/8" | 7/64" | 0.3" | 0.15" | 70,000 | Nut | 10 | 000000000 | 0000 |
18-8 Stainless Steel | |||||||||||
1/4"-20 | |||||||||||
| 3/4" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 100,000 | Nut | 1 | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 100,000 | Nut | 1 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 100,000 | Nut | 1 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 23/32" | 3/32" | 0.24" | 0.11" | 100,000 | Nut | 1 | 000000000 | 0000 |
5/16"-18 | |||||||||||
| 1" | Fully Threaded | Coarse | 7/8" | 7/64" | 0.3" | 0.15" | 100,000 | Nut | 1 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | Coarse | 7/8" | 7/64" | 0.3" | 0.15" | 100,000 | Nut | 1 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 7/8" | 7/64" | 0.3" | 0.15" | 100,000 | Nut | 1 | 000000000 | 0000 |