Fillister Head

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.

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.

8-32X1 1/4 Phillips Flat 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. 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.

1/4-20X2 Combination (Phil/Slot) Pan Head 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. Pan head screws are a common style that can substituted in most applications for round, truss or binding heads.

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.