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The six-lobe drive system provides superior grip and prevents cam-out
The screws are fully threaded for maximum holding power and are available in a variety of lengths to suit your needs
This 5/16-18 x 1/2 Phillips flat undercut machine screw is made of 18-8 stainless steel
The indented hex washer head has a recessed hex socket that allows for easy tightening and removal using a hex key or driver
The external Sems washer is attached to the screw and provides a larger bearing surface for the screw head
4-40 x 5/8 Phillips Pan Split Lock Washer Sems Fully Threaded 18-8 Stainless Steel NKB The six-lobe drive system providesThe 4 40 x 5 8 Phillips Pan Split Lock Washer Sems Fully Threaded 18 8 Stainless Steel is a type of screw that is designed for use in a variety of applications. It is made of 18 8 stainless steel, which makes it resistant to corrosion and rust. The screw has a Phillips pan head, which makes it easy to drive with a screwdriver. The split lock washer helps to keep the screw in place, even when it is subjected to vibration or other forces. The screw is
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