Self-Drilling Screw, #12 x 1 in, Climaseal Steel Flange Hex Head External Hex Drive, 250 PK

Self-Drilling Screw, Finish Climaseal(TM), Material Steel, Head Type Hex Washer, Drive Internal Hex, Screw Size #12, Fastener Length 1 in, Drill Point Size 3, Drill Tip Length 7/16 in, Maximum Drilling Thickness 0.21 in, Head Width 0.313 in, Head Height 0.19 in, Washer Outside Diameter 0.415 in, Drive Size 5/16 in, Pack Size Small, System of Measurement Inch, Maximum Head Width 5/16 in, Minimum Head Width Not Applicable, Maximum Head Height 3/16 in, Minimum Head Height Not Applicable