Socket screws have an allen wrench drive.

Metric socket button head, 3mm x 6mm

Socket button head screw

Socket button head

Button heads are rounded and low profile. Allen (hex socket) drive is a six-sided recess for use with an Allen wrench (hex key).

  • Stainless steel 18-8 (A-2)
  • Stainless steel 316 (A-4)
  • Zinc plated class 12.9 alloy steel
  • Class 12.9 alloy steel black oxide finish

See also

Set screw

Metric set screws

Screws with no head and machine threads for use in a tapped hole.

Shoulder bolt

Metric shoulder bolts

Screws with an unthreaded shoulder that is larger in diameter than the threads. Also known as stripper bolts.