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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.
Mil. Spec. Steel Hex Head Screws
 |  |
Partially Threaded | SAE Grade 8 |
Manufactured and tested to meet strict U.S. military specifications for material and construction. These screws have a head with 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.
Zinc-Yellow-Chromate-Plated Steel—With slightly better corrosion resistance than zinc-plated steel screws, these stand up to more frequent exposure to moisture.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | Threading | Thread Spacing | Fastener Strength Grade/Class | Tensile Strength, psi | Mil. Spec. | Pkg. Qty. | Pkg. | |||
High-Strength Zinc-Yellow-Chromate-Plated Steel | ||||||||||||
5/16"-18 | ||||||||||||
| 1 1/2" | 1/2" | 13/64" | Partially Threaded | Coarse | SAE Grade 8 | 150,000 | MS90728-38 | 5 | 95362A209 | 00000 | ||
 Mil. Spec. High-Strength Steel Hex Head Screw, Zinc-Yellow-Chromate-Plated, 5/16"-18 Thread Size, 1-1/2" Long $9.89 per pack of 5 / $1.98 per piece Pack of 5In stock  Select a compatible file type: Parasolid Compatible Products for This Hex Head Screw | ||||||||||||
