Torx 6lobe Pin Security Barrel Nuts Countersunk / Button Dome For Machine Screws
A2 Stainless Steel, Countersunk and Button Head Barrel Nuts. Countersunk A2 Stainless Steel Barrel Nut (with 6-Lobe Pin Drive). These Barrel Nuts (also known as Interscrews) are internally threaded parts that are ideal for clamping two pieces of material together when used with machine screws.