12 x 2 Simpson Flat-Head Self-Drilling Screw w/ Wings - Square Drive 410 SS - Carton (2500)

high/low thread form incorporates indentations ("teeth") that cut easily and quickly through high-density materials

5 x 220 Hex Cap Screw 8

8 x 1 5/8 Phillips Wafer Self Drilling Cement Board Screws w/ Nibs Ruspert Coated - Carton (4000)

5/8-11 x 3 1/4 Socket Set Screw Cup Point Alloy Nylon Insert Locknuts 18-8 Stainless Steel 12 x 2 Simpson Flat-Head5 8 11 x 3 1 4 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.