TIMCO Self-Drilling Light Section A2 Stainless Steel Bi-Metal Screws,All Sizes,100pcs

TIMCO Self-Drilling Light Section A2 Stainless Steel Bi-Metal Screws - 5.5 x 100

Hex head self-drilling screws, for joining roofing sheets to light section steel (Max. 5.0mm) without the need to pre-drill a hole.
Hex Screw S/DRILL No3 BIMET

Hardened carbon steel drill tip fused on to an A2-304 Austenitic Stainless Steel body