PrecisionGeek® Premium CNC Bookbinding Screws 12–13 mm in Brass

🔩 PrecisionGeek® Premium CNC Bookbinding Screws 12–13 mm in Brass precision CNC machined Chicago screws for bookbinding, document assembly and leather craft. Designed for a secure hold, clean finish and reliable repeated use. 📋 Specifications Quantity: Set of 20 Thread size: M4 Shaft length: 12–13 mm Material: Brass Finish: Precision CNC Machined Country of manufacture: Poland 🎵 Application Suitable for bookbinding, document assembly, portfolios, photo albums and leather craft projects requiring an M4 Chicago screw. 🛡️ Note Choose the shaft length that matches the thickness of your bound material for a flush, secure fit.