#4-40 Button Head Socket Cap Screws are bolts or machine screws with a Hex or Allen drive style.
- Nice finished look
- Cylindrical head and hexagonal drive hole
- Protrudes above the installation surface
- Clean and unstamped domed head with a flat bottom
- Head diameter is nominally 1.5 times or more that of the screw shank (major) diameter
- 304 Stainless steel is corrosion and rust resistant
- Suitable for fresh water moisture situations