Description
Product type:- No12 x 40 class 3 tek screw
Material:- Mild steel
Finish:- Dull grey
Description:- Hexagonal flanged head tek screw
with self tapping thread and self
drilling bit on tip, only thread
half way then coarse thread plus
rubber washer
The class 3 coating is the
ultimate for roofing barrier
and anti-corrosion
Diameter:- No 12 / 5.5 mm
Head diameter:- 5/16″
Flange diameter:- 10.5 mm
Thread length:- 30.5 mm
Drill tip length:- 8.5 mm
