This listing is for new Alloy Steel #4-40 Cup Point Socket Set Screws with Thermal Black Oxide coating in the Length and Quantity you specify.
Diameter : #4
Thread Pitch : 40 TPI - UNC / Coarse Thread
Length : Avail from 3/32 to 5/8th lengths
Drive : .050" Hex Key - Available here
Type : Set / Grub Screw
Matching Nut : #4-40 Available here
System of Measurement : Inch
Material : Alloy Steel with Thermal Black Oxide coating
Specifications : ASME B18.3 / ASTM F912