Affix Security Screws Button Head Pin Hexagon Drive - Affix M512M7A2MCSFBUT, Stainless steel screws from Affix with H40 security drive suitable for medium torque applications.
The head prevents removal with standard hexagon tools - these screws are among the most difficult to remove without the matching driver.
Affix Security Screw Button Head Pin Hexagon Drive H40 A2 S/S M5x12mm PK100