7/16 Hex Key Short Arm Alloy

10 x 3 Simpson Bugle-Head Wood Decking Screws - Square Drive T17 316 SS - 5 lbs Pack (340)

3/4-10 x 2 Socket Set Screw Cup Point Alloy

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#17 High Speed Aircraft Bit

1/2-13 x 5 Socket Set Screw Cup Point Alloy 3/4-10 Socket Cap Screws Alloy 7/16 Hex Key Short Arm1 2 13 x 5 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.