TIMCO Window Fabrication Screws Pan PH Self-Tapping Thread Self-Drilling Point Zinc - 4.2 x 25 Box OF 1000 - 133Z Screwdrivers Bits There are three colour coded

There are three colour coded grades of hardness to cater for different surfaces

It is also designed to work silently

With three stereo microphones designed to capture distant speakers

facia and trim supports etc

TIMCO Window Fabrication Screws Pan PH Self-Tapping Thread Self-Drilling Point Zinc - 4.2 x 25 Box OF 1000 - 133Z Screwdrivers Bits There are three colour codedBox of 1000 Size 4. 2 x 25TIMCO Window Fabrication Screws Pan PH Self Tapping Thread Self Drilling Point Zinc 4. 2 x 25 Generally used for attaching steel hardware to steel reinforced PVCu sections. The flat underside of the screws head allows it to clamp the materials together firmly. Pan Head S Drill Screw BZP