(Pack OF 400) 5.5 x 25mm Tech Screws for Roofing & Cladding Self Drill Tek Screw nyloc nuts This can be prevented by

This can be prevented by tempering the surface prior to the bonding

M4 x 8 Socket Cap Screw (bolt)

The extra fine Copper particles in CS-90 act as a barrier to corrosion even in the harshest conditions as the Copper particles remain in the threads to prevent seizing

Price includes Free UK delivery

1 Steel Back Panel

(Pack OF 400) 5.5 x 25mm Tech Screws for Roofing & Cladding Self Drill Tek Screw nyloc nuts This can be prevented byDescription Self Drilling Hex Head Tek Screws With Bonded Sealing Washer 5. 5 x 25 pack of 400 screws + 1 FREE MAGNETIC SOCKET DRIVER PER ORDER Self drilling screws for fixing to metal. Very High Quality Screws Hexagon head with drilling point and EPDM bonded sealing washer. All screws have a 5. 5mm thread diameter and 25mm Long. Hexagonal head is 8mm, Additional Magnetic socket drivers available too. Zinc plated Coating (Cr3 Coating) Photos for