5/16-18X1/4 Coarse Thread Socket Set Screw Cup Plain (Pack Qty 100) BC-3104SSC

Cup point: A headless screw threaded the entire length. It has a hexagonal drive at one end and a cup-shaped indentation at the other end. Half-Dog point: A set screw with a protruding tip with a flat surface at the end opposite that of the hexagonal drive. Oval point: A set screw with an oval-shaped point at the end opposite that of the hexagonal drive. Flat point: A set screw with a flat surface at the end opposite that of the hexagonal drive. Cone point: A set screw with a sharp conical-shaped point at the opposite end from the hexagonal drive. Cup point: 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. Half