12X4 Phillips Flat Self Drilling Screw Full Thread Zinc Bake. Self drilling screws have point to cut through material and eleiminate the need to drill a pilot hole. Flat head screws are used when protrusion of the fastener above the mating surface is unacceptable. Typically 100 degree flat or for fastening softer materials, 82 degrees flat.

14X4 Phillips Pan Full Thread Self Drilling Screw Zinc Bake. Self drilling screws have point to cut through material and eleiminate the need to drill a pilot hole. Pan head screws are a common style that can substituted in most applications for round, truss or binding heads.

8-18X1 1/4 Phillips Wafer Head t Full Thread Self Drilling Screw Zinc Bake. Self drilling screws have point to cut through material and eleiminate the need to drill a pilot hole. Wafer heads provide necessary bearing surface and flush fit in wood and softer materials.

8X1 1/2 Phillips Modified Truss Head Full Thread Self Drill Screw 410 Stainless Steel. Self drilling screws have point to cut through material and eleiminate the need to drill a pilot hole. Truss head screws are weaker than pan or round heads but preferred in applications where minimal clearance exists above the head. Modified truss heads offer low clearance and an extra large bearing surface. Commonly used to attach metal lathe to metal studs.

8X3/4 Phillips Round Washer Head Self Drilling Screw Full Thread Zinc Bake. Self drilling screws have point to cut through material and eleiminate the need to drill a pilot hole. Round head screws are sometimes perferred over a pan head for its smooth surface and appearance.