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About Hex Head Screws and Bolts
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Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.
High-Pressure Steel Heavy Hex Head Screws
 |
Fully Threaded |
 |
Partially Threaded |
Meet ASTM standards for use in high-pressure and high-temperature applications. Also known as pressure bolts, these screws are often used to secure pressure tanks, valves, and flanges. With a head that's about 10% wider than standard hex head screws, they handle heavier loads by distributing them over a larger area. The head also has six flat sides to keep wrenches and sockets from slipping and rounding off the drive.
Length is measured from under the head.
High-Strength Fastener—Commonly used to fasten components in valves, pumps, motors, and other high-stress applications. These screws have a tensile strength of 125,000 to 160,000 psi.
ASTM Grade B7—A reliable option for high-temperature machinery, such as boilers, steam turbines, and oil well equipment.
Grip Length—Screws with a grip length have a precisely measured unthreaded section under the head, called a grip. It's stronger than the threaded section, so you can place it in joints exposed to sideways forces.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Grip Lg. | Wd. | Ht. | Threading | Thread Spacing | Tensile Strength, psi | Specs. Met | Each | |||
High-Strength ASTM Grade B7 Steel | |||||||||||
3/8"-16 | |||||||||||
| 1" | — | 9/16" | 15/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A711 | 00000 | ||
| 1 1/4" | — | 9/16" | 15/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A712 | 0000 | ||
| 1 1/2" | 1/2" | 9/16" | 15/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A713 | 0000 | ||
| 1 3/4" | 3/4" | 9/16" | 15/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A714 | 0000 | ||
| 2" | 1" | 9/16" | 15/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A715 | 0000 | ||
| 2 1/4" | 1 1/4" | 9/16" | 15/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A716 | 0000 | ||
| 2 1/2" | 1 1/2" | 9/16" | 15/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A717 | 0000 | ||
| 3" | 2" | 9/16" | 15/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A719 | 0000 | ||
1/2"-13 | |||||||||||
| 1" | — | 7/8" | 5/16" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A723 | 0000 | ||
| 1 1/4" | — | 7/8" | 5/16" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A724 | 0000 | ||
| 1 1/2" | — | 7/8" | 5/16" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A206 | 0000 | ||
| 1 3/4" | — | 7/8" | 5/16" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A725 | 0000 | ||
| 2" | 3/4" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A209 | 0000 | ||
| 2 1/4" | 1" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A726 | 0000 | ||
| 2 1/2" | 1 1/4" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A212 | 0000 | ||
| 2 3/4" | 1 1/2" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A727 | 0000 | ||
| 3" | 1 3/4" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A215 | 0000 | ||
| 3 1/4" | 2" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A728 | 0000 | ||
| 3 1/2" | 2 1/4" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A218 | 0000 | ||
| 3 3/4" | 2 1/2" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A729 | 0000 | ||
| 4" | 2 3/4" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A222 | 0000 | ||
| 4 1/2" | 3 1/4" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A732 | 0000 | ||
| 5" | 3 3/4" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A734 | 0000 | ||
| 5 1/4" | 4" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A735 | 0000 | ||
| 5 1/2" | 4 1/4" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A736 | 0000 | ||
| 6" | 4 3/4" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A737 | 0000 | ||
| 6 1/4" | 4 3/4" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A738 | 00000 | ||
| 6 1/2" | 5" | 7/8" | 5/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A739 | 00000 | ||
5/8"-11 | |||||||||||
| 1 1/4" | — | 1 1/16" | 25/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A741 | 0000 | ||
| 1 1/2" | — | 1 1/16" | 25/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A742 | 0000 | ||
| 1 3/4" | — | 1 1/16" | 25/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A743 | 0000 | ||
| 2" | — | 1 1/16" | 25/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A313 | 0000 | ||
| 2 1/4" | 3/4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A744 | 0000 | ||
| 2 1/2" | 1" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A316 | 0000 | ||
| 2 3/4" | 1 1/4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A745 | 0000 | ||
| 3" | 1 1/2" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A319 | 0000 | ||
| 3 1/4" | 1 3/4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A746 | 0000 | ||
| 3 1/2" | 2" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A323 | 0000 | ||
| 3 3/4" | 2 1/4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A747 | 0000 | ||
| 4" | 2 1/2" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A326 | 0000 | ||
| 4 1/4" | 2 3/4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A748 | 0000 | ||
| 4 1/2" | 3" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A330 | 0000 | ||
| 4 3/4" | 3 1/4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A749 | 0000 | ||
| 5" | 3 1/2" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A751 | 0000 | ||
| 5 1/4" | 3 3/4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A752 | 0000 | ||
| 5 1/2" | 4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A753 | 0000 | ||
| 6" | 4 1/2" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A754 | 0000 | ||
| 6 1/4" | 4 1/2" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A755 | 0000 | ||
| 6 1/2" | 4 3/4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A756 | 0000 | ||
| 7" | 5 1/4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A757 | 0000 | ||
| 7 1/2" | 5 3/4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A758 | 0000 | ||
| 8" | 6 1/4" | 1 1/16" | 25/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A759 | 0000 | ||
3/4"-10 | |||||||||||
| 1 1/2" | — | 1 1/4" | 15/32" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A761 | 0000 | ||
| 1 3/4" | — | 1 1/4" | 15/32" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A413 | 0000 | ||
| 2" | — | 1 1/4" | 15/32" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A417 | 0000 | ||
| 2 1/4" | — | 1 1/4" | 15/32" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A419 | 0000 | ||
| 2 1/2" | — | 1 1/4" | 15/32" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A423 | 0000 | ||
| 2 3/4" | 1" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A425 | 0000 | ||
| 3" | 1 1/4" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A427 | 0000 | ||
| 3 1/4" | 1 1/2" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A762 | 0000 | ||
| 3 1/2" | 1 3/4" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A429 | 0000 | ||
| 3 3/4" | 2" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A763 | 0000 | ||
| 4" | 2 1/4" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A433 | 0000 | ||
| 4 1/4" | 2 1/2" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A764 | 0000 | ||
| 4 1/2" | 2 3/4" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A438 | 0000 | ||
| 4 3/4" | 3" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A765 | 0000 | ||
| 5" | 3 1/4" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A766 | 0000 | ||
| 5 1/4" | 3 1/2" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A767 | 0000 | ||
| 5 1/2" | 3 3/4" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A768 | 0000 | ||
| 5 3/4" | 4" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A769 | 0000 | ||
| 6" | 4 1/4" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A771 | 0000 | ||
| 6 1/2" | 4 1/2" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A772 | 00000 | ||
| 7" | 5" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A773 | 00000 | ||
| 7 1/2" | 5 1/2" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A774 | 00000 | ||
| 8" | 6" | 1 1/4" | 15/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A775 | 00000 | ||
7/8"-9 | |||||||||||
| 2 1/2" | — | 1 7/16" | 35/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A498 | 00000 | ||
| 2 3/4" | — | 1 7/16" | 35/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A776 | 0000 | ||
| 3" | 1" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A502 | 00000 | ||
| 3 1/4" | 1" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A777 | 0000 | ||
| 3 1/2" | 1 1/2" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A510 | 00000 | ||
| 4" | 2" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A516 | 00000 | ||
| 4 1/4" | 2" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A779 | 00000 | ||
| 4 1/2" | 2 1/4" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A781 | 00000 | ||
| 4 3/4" | 2 1/2" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A782 | 00000 | ||
| 5" | 3" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A519 | 00000 | ||
| 5 1/2" | 3 1/4" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A784 | 00000 | ||
| 5 3/4" | 3 1/2" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A785 | 00000 | ||
| 6" | 3 3/4" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A786 | 00000 | ||
| 7" | 4 3/4" | 1 7/16" | 35/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A115 | 00000 | ||
1"-8 | |||||||||||
| 2" | — | 1 5/8" | 39/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A787 | 0000 | ||
| 2 1/4" | — | 1 5/8" | 39/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A788 | 0000 | ||
| 2 1/2" | — | 1 5/8" | 39/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A600 | 00000 | ||
| 2 3/4" | — | 1 5/8" | 39/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A789 | 00000 | ||
| 3" | — | 1 5/8" | 39/64" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A610 | 00000 | ||
| 3 1/4" | 1" | 1 5/8" | 39/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A791 | 00000 | ||
| 3 1/2" | 1 1/4" | 1 5/8" | 39/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A615 | 00000 | ||
| 3 3/4" | 1 1/2" | 1 5/8" | 39/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A792 | 00000 | ||
| 4" | 1 3/4" | 1 5/8" | 39/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A627 | 00000 | ||
| 4 1/2" | 2 1/4" | 1 5/8" | 39/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A633 | 00000 | ||
| 4 3/4" | 2 1/2" | 1 5/8" | 39/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A794 | 00000 | ||
| 5" | 2 3/4" | 1 5/8" | 39/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A640 | 00000 | ||
| 5 1/2" | 3 1/4" | 1 5/8" | 39/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A795 | 00000 | ||
| 6" | 3 3/4" | 1 5/8" | 39/64" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A796 | 00000 | ||
1 1/8"-7 | |||||||||||
| 3" | — | 1 13/16" | 11/16" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A129 | 00000 | ||
| 3 1/2" | — | 1 13/16" | 11/16" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A131 | 00000 | ||
| 4" | 1 1/2" | 1 13/16" | 11/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A132 | 00000 | ||
| 5" | 2 1/2" | 1 13/16" | 11/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A133 | 00000 | ||
1 1/8"-8 | |||||||||||
| 2 1/2" | — | 1 13/16" | 11/16" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A797 | 00000 | ||
| 2 3/4" | — | 1 13/16" | 11/16" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A798 | 00000 | ||
| 3" | — | 1 13/16" | 11/16" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A799 | 00000 | ||
| 3 1/4" | — | 1 13/16" | 11/16" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A811 | 00000 | ||
| 3 1/2" | — | 1 13/16" | 11/16" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A812 | 00000 | ||
| 4" | 1 1/2" | 1 13/16" | 11/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A814 | 00000 | ||
| 4 1/4" | 1 3/4" | 1 13/16" | 11/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A815 | 00000 | ||
| 4 1/2" | 2" | 1 13/16" | 11/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A816 | 00000 | ||
| 4 3/4" | 2 1/4" | 1 13/16" | 11/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A817 | 00000 | ||
| 5" | 2 1/2" | 1 13/16" | 11/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A818 | 00000 | ||
| 5 1/2" | 3" | 1 13/16" | 11/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A821 | 00000 | ||
| 6" | 3 1/2" | 1 13/16" | 11/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A823 | 00000 | ||
| 6 1/2" | 3 3/4" | 1 13/16" | 11/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A825 | 00000 | ||
| 7" | 4 1/4" | 1 13/16" | 11/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A826 | 00000 | ||
| 8" | 5 1/4" | 1 13/16" | 11/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A828 | 00000 | ||
1 1/4"-7 | |||||||||||
| 3" | — | 2" | 25/32" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A134 | 00000 | ||
| 3 1/2" | — | 2" | 25/32" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A135 | 00000 | ||
| 4" | 1 1/4" | 2" | 25/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A136 | 00000 | ||
| 4 1/2" | 1 3/4" | 2" | 25/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A137 | 00000 | ||
| 6" | 3 1/4" | 2" | 25/32" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A138 | 00000 | ||
1 1/4"-8 | |||||||||||
| 3" | — | 2" | 25/32" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A829 | 00000 | ||
| 3 1/4" | — | 2" | 25/32" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A831 | 00000 | ||
| 3 1/2" | — | 2" | 25/32" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A832 | 00000 | ||
| 3 3/4" | — | 2" | 25/32" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A833 | 00000 | ||
| 4" | 1 1/4" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A834 | 00000 | ||
| 4 1/4" | 1 1/2" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A835 | 00000 | ||
| 4 1/2" | 1 3/4" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A836 | 00000 | ||
| 5" | 2 1/4" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A838 | 00000 | ||
| 5 1/4" | 2 1/2" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A839 | 00000 | ||
| 5 1/2" | 2 3/4" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A841 | 00000 | ||
| 5 3/4" | 3" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A842 | 00000 | ||
| 6" | 3 1/4" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A843 | 00000 | ||
| 6 1/4" | 3 1/4" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A844 | 00000 | ||
| 6 1/2" | 3 1/2" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A845 | 00000 | ||
| 7" | 4" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A847 | 00000 | ||
| 7 1/2" | 4 1/2" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A849 | 00000 | ||
| 8" | 5" | 2" | 25/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A851 | 00000 | ||
1 1/2"-6 | |||||||||||
| 3" | — | 2 3/8" | 15/16" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A139 | 00000 | ||
| 3 1/2" | — | 2 3/8" | 15/16" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A141 | 00000 | ||
| 4" | — | 2 3/8" | 15/16" | Fully Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A142 | 00000 | ||
| 5" | 1 3/4" | 2 3/8" | 15/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A143 | 00000 | ||
| 6" | 2 3/4" | 2 3/8" | 15/16" | Partially Threaded | Coarse | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A144 | 00000 | ||
1 1/2"-8 | |||||||||||
| 3" | — | 2 3/8" | 15/16" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A116 | 00000 | ||
| 3 1/2" | — | 2 3/8" | 15/16" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A117 | 00000 | ||
| 4" | — | 2 3/8" | 15/16" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A118 | 00000 | ||
| 4 1/2" | — | 2 3/8" | 15/16" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A119 | 00000 | ||
| 5" | 1 3/4" | 2 3/8" | 15/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A121 | 00000 | ||
| 5 1/2" | 2 1/4" | 2 3/8" | 15/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A122 | 00000 | ||
| 6" | 2 3/4" | 2 3/8" | 15/16" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A123 | 00000 | ||
1 3/4"-8 | |||||||||||
| 4" | — | 2 3/4" | 1 3/32" | Fully Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A124 | 00000 | ||
| 5" | 1 1/4" | 2 3/4" | 1 3/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A125 | 00000 | ||
| 6" | 2 1/4" | 2 3/4" | 1 3/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A126 | 00000 | ||
| 7" | 3" | 2 3/4" | 1 3/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A127 | 00000 | ||
| 8" | 4" | 2 3/4" | 1 3/32" | Partially Threaded | Fine | 125,000 | ASME B18.2.1 ASTM A193 ASTM A962 | 94705A128 | 00000 | ||
Steel Socket Head Screws for High-Pressure Applications
 |
Fasten pressure tanks, valves, and flanges with these screws. They're made of grade B7 alloy steel and hardened to maintain strength in high-pressure environments up to 1,100° F. The deep, six-point socket keeps the hex key from slipping out and damaging the drive.
Length is measured from under the head.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Threading | Thread Spacing | Tensile Strength, psi | Fastener Strength Grade/Class | Max. Temp., ° F | Pkg. Qty. | Pkg. | |||
Alloy Steel | ||||||||||||
10-32 | ||||||||||||
| 1/2" | 5/16" | 3/16" | Fully Threaded | Fine | 125,000 | ASTM Grade B7 | 1,100 | 5 | 92579A101 | 000000 | ||
| 3/4" | 5/16" | 3/16" | Fully Threaded | Fine | 125,000 | ASTM Grade B7 | 1,100 | 5 | 92579A102 | 00000 | ||
| 1" | 5/16" | 3/16" | Fully Threaded | Fine | 125,000 | ASTM Grade B7 | 1,100 | 5 | 92579A103 | 00000 | ||
1/4"-20 | ||||||||||||
| 1/2" | 3/8" | 1/4" | Fully Threaded | Coarse | 125,000 | ASTM Grade B7 | 1,100 | 5 | 92579A104 | 00000 | ||
| 3/4" | 3/8" | 1/4" | Fully Threaded | Coarse | 125,000 | ASTM Grade B7 | 1,100 | 5 | 92579A105 | 00000 | ||
| 1" | 3/8" | 1/4" | Fully Threaded | Coarse | 125,000 | ASTM Grade B7 | 1,100 | 5 | 92579A106 | 00000 | ||
| 1 1/2" | 3/8" | 1/4" | Fully Threaded | Coarse | 125,000 | ASTM Grade B7 | 1,100 | 5 | 92579A107 | 00000 | ||
5/16"-18 | ||||||||||||
| 3/4" | 1/2" | 5/16" | Fully Threaded | Coarse | 125,000 | ASTM Grade B7 | 1,100 | 5 | 92579A108 | 00000 | ||
| 1" | 1/2" | 5/16" | Fully Threaded | Coarse | 125,000 | ASTM Grade B7 | 1,100 | 5 | 92579A109 | 00000 | ||
3/8"-16 | ||||||||||||
| 1" | 9/16" | 3/8" | Fully Threaded | Coarse | 125,000 | ASTM Grade B7 | 1,100 | 5 | 92579A111 | 00000 | ||
| 1 1/2" | 9/16" | 3/8" | Fully Threaded | Coarse | 125,000 | ASTM Grade B7 | 1,100 | 5 | 92579A112 | 00000 | ||
