Forgefix Drywall Screw Phillips Bugle Head FT ZP 3.5 x 42mm Box 1000, zinc plated finish for increased durability. The screws come complete with a No.2 insert bit.

ManoMano

These Forgefix Phillips, fine thread Drywall Screws have a zinc plated finish for increased durability. The screws come complete with a Phillips No.2 insert bit. Their Bugle Head allows the screw to sink effortlessly into the dry lining without the need for countersinking, which in turn minimises the damage to the surface. APPLICATION:Designed for fitting dry linings to studding. Zinc coatings prevent oxidation of the protected metal to create a longer lasting finish. It does this by forming a barrier and by acting as a sacrificial anode if this barrier is damaged. Zinc oxide is a fine white dust that (in contrast to iron oxide) does not trigger a breakdown of the substrate’s surface integrity as it is formed. The zinc oxide, if left intact, can act as a barrier to further oxidation, in a way similar to the protection afforded to aluminum and stainless steels by their oxide layers. The Phillips screw has four simple tapered slots. It is designed so a Phillips tip screwdriver can turn

Amazon

BUGLE head with Zinc plated finish SINKS into dry lining without need for countersinking SINGLE coarse thread for easy installation DESIGNED for fitting dry linings to studding SUPPLIED in a box with a PH2 insert bit, Weight: 4.6958461806 Pounds, Manufacturer: Forgefix