35 Sets M4 x 20mm Barrel Nuts and Bolts, Hex Socket Binding Screws

This kit includes 35 sets of M4 × 20 mm flat‑head hex‑socket cap screws with matching barrel nuts, all precision‑machined from 304 (18‑8) stainless steel and fully threaded for superior corrosion and rust resistance. The countersunk heads sit flush for a clean, professional finish, making them ideal for cabinet connectors, leather binding, furniture assembly, and various DIY projects. Packaged in a compartmentalized storage case for quick access, it’s the perfect hardware solution for both professionals and home users.