6-32 x 1/2 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10

8 x 1 Simpson Flat-Head Marine Screw - Phillips Drive 316 SS - Box (100)

1 1/8-7 x 7 Socket Cap Screw Alloy

53/64 x 6 Reduced Shank Drill Bit (1/2 Shank)

8 x 1 1/2 Phillips Flat Particle Board Screw w/ Nibs T17 Black Oxide - Carton (6

1-8 x 3 1/2 Socket Set Screw Cup Point Alloy Phillips Bugle Decking Screws Yellow Zinc Plated 6-32 x 1/2 Phillips Flat1 8 x 3 1 2 Socket Set Screw Cup Point Alloy . A headless screw threaded the entire length. It has a hexagonal drive at one end and a cup shaped indentation at the other end. The cup point is the most used style set screw. Designed for fast, permanent and semi permanent location of parts on shafts with hardness differential of 10 15 Rockwell C points and where cutting in of cup edge on the shaft is acceptable. Hardness: Rockwell C45 53.