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About Hex Head Screws and Bolts
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Army-Navy Medium-Strength Steel Hex Head Screws
These screws are made to stringent Army-Navy specifications that ensure performance and reliability. They have a precisely measured unthreaded portion (grip). For added strength, place this portion in joints subjected to sideways forces. Comparable in strength to Grade 5 steel screws, these screws are suitable for fastening most machinery and equipment. The cadmium plating provides good corrosion resistance to salt water. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Lg. | Grip Lg. | Thread Spacing  | Wd. | Ht. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Cadmium-Plated Steel | |||||||||||
1/4"-28 | |||||||||||
| 1 17/32" | Partially Threaded | 15/32" | 1 1/16" | Fine | 7/16" | 11/64" | 120,000 | AN4-14A | 10 | 000000000 | 00000 |