1/4-28 x 1 Inch Fine Black Oxide Alloy Steel Cup Point Socket Head Set Screw Best Seller Inside Diameter Maximum: 3

Inside Diameter Maximum: 3

M10X40 7380-A2 FT BSCS

Whenever possible two Back Up Washers should be used one on each side of the 'O' Ring

#5 WATERPRF CONN-RED

1/4-28 x 1 Inch Fine Black Oxide Alloy Steel Cup Point Socket Head Set Screw Best Seller Inside Diameter Maximum: 3Cup point set screws feature a hex drive at one end and a cup shaped indentation at the other. The most commonly used set screw head style the thin edge of the cup end digs into the contact surface for high holding power. It is useful for fast permanent and semi permanent placement in applications where some indentation left by the cup end is acceptable.