Fillister Head

Machine Screws are uniformly threaded screws designed to be fastened into tapped holes, or used in conjunction with nuts to join two or more assemblies together. Typical applications for machine screws include fastening components of tools, appliances, machines, and electronic devices. ASME B18.3 covers the general requirements for the dimensions and performance of Steel Machine Screws. Special Features: Invincibox, Zinc Plated Material : Carbon Steel Applications: General Purpose

8-32X1 1/2 Slotted Truss Machine Screw Fully Threaded Zinc. 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.

4-40X1/4 Phillips Oval Head 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. Oval head screws are preferred over a flat head when a more decorative look is desired or when fastening onto a conical surface.

1/4-20X1 Slotted Truss Serrated Machine Screw Fully Threaded Zinc. 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.

Flat Head screws install flush with metal surfaces or countersinks with softer materials for a clean appearance. Shown with pin-drive - model comes with standard torx drive without pin in center.