Grab Boss Chicago Screws For Book Binding And Riveting A Gang Size Pack Of 50 M4X8mm Slotted Dual Head Binding Screws With Black Finish Great For Crafting Projects Featuring Serious Grip And Rust Resistant Performance Without Playing Around

Pack Of 50 M4 X 8mm Dual Head Chicago Binding Screws
✔️ 4 x 8mm brass chicago screws feature a black oxide finish

You need heavy duty rivet fasteners to secure thick hides and paper covers. They stay locked during daily studio work. You save time aligning multiple layers before sewing.

✅ Shaft measures 4mm (0.16in) with a clean 8mm (0.31in) grip length.
✅ Post thread runs 4mm (0.16in) for secure mounting in rigid bases.
✅ Head diameter spans 10mm (0.39in) and covers holes completely.
✅ Black oxide coating blocks moisture and prevents rust over time.
✅ You get a ready to assemble set containing fifty complete pairs.

💡 What makes threaded binding pins ideal for heavy duty bookbinding repairs?

You need reliable torque transfer to keep layered pages flush under constant flex.

- The knurled shaft grips plastic inserts without spinning under load - You can seat them deep for a low profile that clears zipper tracks - The handy geometry cuts down on alignment errors during weekend projects - The robust barrel takes heavy pressurized punches without splitting fibers ✝️