Forgefix M6 x 40mm Pozi Compatible Pan Head Machine Screws - Pack of 20 for DIY Projects

These Forgefix Pozi Compatible Machine Screws are designed for use with nuts or pre-tapped holes. They are Zinc plated for increased corrosion resistance. Their Pan Head with a flat under head surface makes the screws ideal to lay flat on sheet material of all types thus reducing deformation. APPLICATION: Ideal for use in many DIY ironmongery electrical and plumbing applications. 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 Pozidriv screw is similar in appearance to the classic Phillips cross-head but in fact is very different