Used for attaching metal to heavy section steel (Max. 12mm) without the need to pre-drill a hole.Self-Drilling Heavy Section A2 Stainless Steel Bi-Metal Screws - 5.5 x 38SKU: BMH38£39.98PriceExcluding VATSub Categories*Roofing & Construction ScrewsType*Self-Drilling Screw - Heavy Duty Section SteelPack Type*BoxSize*5.5 x 38Quantity*(100)pcsQuantity*ADD TO CART