Description
Product type:- 4.2 x 25 Csk slot self-tapper
Material:- Mild steel
Finish:- Bright zinc, galvanised
Description:- Countersunk slotted drive, flat
head, fully-threaded galvanised
self-tapper
Diameter of screw:- 4.2 mm / No 8
Diameter of head:- 8.1 mm
Head thickness:- 2.5 mm
Slot width:- 1.2 mm
Slot depth:- 0.75 mm
F.Y.I:
The length of a countersunk self-tapper is determined
by measuring the total length of the screw.
