3/4-10 x 3 1/4 Socket Cap Screw 18-8 (A2) Stainless Steel

7/8-9 x 6 1/2 Hex Cap Screw SS 18-8 (A2)

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Hardness for plain and zinc plated washers is HRC 38-45 and HRC 26-45 for hot-dip galvanized washers per ASTM F436

7/16-14 x 4 Socket Set Screw Cup Point Alloy A194 2H Heavy Hex Nuts Plain 3/4-10 x 3 1/4 Socket7 16 14 x 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.