#4-40 Button Head Socket Cap screws. These are made from Alloy Steel with Thermal Black Oxide coating.
- Diameter: #4
- Thread Size: 40 TPI - Coarse (Standard) Thread
- Length: Please select from above.
- Drive: 1/16" Hex Key - Available here
- Type: Button Head Cap Screw
- Matching Nut & Washers: #4-40 - Available here
- System of Measurement: U.S. / Inch
- Material: Alloy Steel with Thermal Black Oxide
- Specifications: ANSI/ASME B18.3, ASTM F879