Hafren SECURITY Hexalobular socket countersunk head barrel nut with pin Stainless steel A251211
Hafren SECURITY Hexalobular socket button head barrel nut with pin Stainless steel A251216
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. Ideal for playground equipment, ironmongery and signage to name a few.