10-24X3/4 Phillips Flat Undercut Thread Cutting Screw Type F Fully Threaded Black Oxide0 7000 pcs

8-32X3/8 6 Lobe Pan Taptite Alternative Thread Rolling Screw Fully Thrd Zinc Bake & Wax. Thread Rolling Taptite thread for drilled, punched or cored holes in all ductile metals and punch extruded metals. Eliminates chips, requires low drive torque and is resistant to vibrational loosening. Pan head screws are a common style that can substituted in most applications for round, truss or binding heads.

1/4-20X1 1/4 Unslot Ind Hexwasher Serrated 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. Indented hex washer head offers advantages of hex head, plus greater protection to mating surface.

1/4X2 1/4 Slotted Hex Washer Concrete Screw With Drill Bit Blue Perma Seal. Concrete screws cut their own threads when used in concrete, block or brick. Carbide bits are recommended for use in masonry. Hex washer head offers advantages of hex head, plus greater protection to mating surface.

6X3/4 Phillips Recess Bugle Hd Coarse Thread Drywall Scr Blk Phosphate Particle Board. Bugle head screws are commonly used for drywall because it distributes bearing stress over a wider area than a flat head.

8X3/4 Phillips Modified Truss Head Full Thread Self Drilling Screw Black Phos. 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.