Internal Threaded Screws, InterScrew, Barrel Nuts.

Internal Threaded Screws, InterScrew, Barrel Nuts.



Security Barrel Nut A2 304 Stainless and Interscrews in A2 304 & A4 316 Stainless Steel for Boat Portholes, Windscreens, and Side Windows. AKA Inter Screws.