TechFast Timber to Steel CSK/Wing Screw No.3 Tip 5.5 x 40mm Box 100
These Forgefix TechFast Timber to Steel CSK/Wing Screws have the following specification: Size: 5.5 x 40mmClamping Thickness: 20mmEffective Thread Length: 19mmPack Size: 100Drill Tip: No.3 No.3 drill tip for self-drilling heavy gauge steel up to 5mm.