Self Tapping Screws

What this group is for

A self tapping screw cuts or forms the thread but does not make the hole, so the pilot size matters more here than anywhere else in the catalogue: too large and there is nothing left to cut, too small and the screw shears before it seats.

• Forms its thread in a pre-drilled, non-awl hole
• M1.4–6.3 (0#–14#), 6mm–300mm; roofing line 4#–14#, 4mm–500mm
• The right choice on steel sheet under 1mm, where a drill point cannot finish
• Carbon steel and stainless SUS302 / 304 / 305 / 316 / 410