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The nut has a hexagonal shape and is tightened using a wrench
This 1/4-28 x 1 1/4 Phillips flat machine screw is made of steel and has a zinc finish
reducing cam-out and ensuring a flush
This 3/8-16 x 6 1/2 Hex Tap Bolt is made of low carbon steel and has a fully threaded body
- **Undercut:** Yes
5/16-18 x 2 1/2 MS51959, NASM51959 Phil Flat Machine Screw Full Thread 300 Series S/S DFAR KHS The nut has a hexagonal**5 16 18 x 2 1 2 MS51959, NASM51959 Phil Flat Machine Screw, Full Thread, 300 Series S S, DFAR** This screw is a 5 16 18 x 2 1 2 inch, full thread, flat head machine screw made of 300 series stainless steel. It meets the specifications of MS51959 and NASM51959 and is compliant with the DFAR (Defense Federal Acquisition Regulation Supplement). The screw is designed for use in a variety of applications, including aerospace, automotive, and industrial.
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