Cap screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. Flat head screws are used when protrusion of the fastener above the mating surface is unacceptable. Allen/hex keys are used to drive the screw.
- Size #4-40
- Length 3/8"
- Material Alloy steel
- Finish Black oxide
- Head Flat socket
- Description Socket cap screw
- Brand Brighton-best
- Unit of measurement Inch (imperial)
- Country of origin Import
- Full or partial thread Full
- Package quantity 100
- Thread Coarse
- Drive type Allen
- Manufacturers part number 211018
