1/4-20X3/8 Phillips Flat Undercut Machine Screw Fully Threaded Black Zinc, Pkg of 6000

M5-.08X12 Din 965 Metric Phillips Flat Machine Screw Class 4.8 Black Oxide and Oil. Machine Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. 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.

12-24X11/16 Phillips Flt Underct Full Thread Self Drill Scr Machine Sc Thread Zinc Bake. Self drilling screws have point to cut through material and eleiminate the need to drill a pilot hole. Flat undercut heads are used when a flat head is desired on shorter length screws.

4-40X7/16 Phillips Truss Machine Screw Fully Threaded 18 8 Stainless Steel. Machine Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. 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.

12-24X3/4 Phillips Flt Underct Full Thread Self Drill Scr Machine Sc Thread Zinc Bake. Self drilling screws have point to cut through material and eleiminate the need to drill a pilot hole. Flat undercut heads are used when a flat head is desired on shorter length screws.

10-24X3 Phillips Flat Machine Screw Fully Threaded Black Oxide. Machine Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. 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.