Forgefix General Purpose Screws, Pozi, Csk, Zp

- These Forgefix General Purpose Pozi Compatible Screws with Countersunk heads are zinc plated for increased durability. - They are an extremely popular general purpose screw, and suitable for use in and with many materials. - APPLICATION:Ideal for use in many ironmongery, electrical and plumbing applications. Can be used with various screw cover caps. - 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. - The Pozidriv has four additional points of contact, and does not have the rounded corners that the Phillips screw drive has. - The biggest advantage it offers is that, when used with the correct tooling in good condition, it does not cam out, allowing great torque to be applied. - The Pozidriv screw can easily be distinguished by a line embossed in the screw head at 45° to the slots for the driver. - The countersunk head is designed to sink flush with substrates to leave a smooth surface finish. - They have twin threads, which enable an easy start when driving. - Imperial Size > MetricNo.4 = 3.0mm, No.6 = 3.5mm, No.7 = 3.9mmNo.8= 4.0mm, No.10 = 5.0mm, No.12 = 6.0mm. - UK size :3 1/2 x 12, FR Size :3 1/2 x 12, ES Size : 3 1/2 x 12 , DE Size: 3 1/2 x 12, IT size: 3 1/2 x 12, US & CA Size: 3 1/2 x 12 . - code: UTTK10101