Self-Drilling Screw, #12 x 1 1/4 in, Climaseal Steel Hex Head External Hex Drive, 250 PK
313 in, Minimum Head Width 0.5 in, Head Width 0.313 in, Head Color Silver, Package Quantity 250.415 in, Drive Size 5/16 in, Pack Size Small, System of Measurement Inch, Maximum Head Width 0.