- Pin and screw made from one piece - Easy to install with a 3 mm hex key - Specially turned threads for maximum grip in wood - Thread diameter: 4 mm - Thread length: 22 mm - Hardest steel and double wall thickness for maximum durability and security - Medium length - Surface: Nickel - Schaller Nr.: 24030100 - Includes high quality felt washers to protect your instrument EUR 11.00 - See more - Buy online