TX/Pin Flachrundkopf-Zylindermutter Rostfreistahl A251216
TX/Pin Senkkopf-Zylindermutter Rostfreistahl A251211
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.