Type - Socket drive Cup point grub screws. Thread - UNF (AF) (Imperial fine). Grade - A2 Stainless steel (For increased corrosion resistance). 6-40 3/16" 1/16" 40. 1/2" 1" 1/4" 20. 1/2" 3/4" 1/4" 20. 1/2" 1/2" 1/4" 20.
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