BBI® 693050 Teks® Fully Threaded Self-Drilling Screw, #8-18, 1/2 in OAL, Indented Hex/Washer Head, Hex Drive, Low Carbon Steel

BBI® Self-Drilling Screw, Fully Threaded, series: Teks®, Imperial, #8-18 Thread, 1/2 in Overall Length, Indented Hex/Washer Head, Hex Drive, Low Carbon Steel, Zinc CR+3, Drill Point, #2 Point, 1/4 in Drive, 0.348 in Head, HRC 32 to 40 Hardness.