03.01.35020 - Chipboard screw double flat head w/nibs F/T SQR#1 with cutting point zinc plated 3,5-20

Chipboard screws with Square recess drive.
Advantages
* One-hand useable (Stainless steel)
* Less slipping out of the screw (Recess connection).
* Easy turn back out (no dammage on drive head)
* Higher driving torx.(hard wood)

one-hand