Holding pins

The diameter and length of a holding pin is selected in such a way that the pin is able to withstand the forceful pull of the strings (800 N). A maximum of solidity is ensured by a material made of hard steel. The possible bending of the pin is further prevented by attaching the loop ending of the string to the lowest point of the pin, on a cashmere pad, and by pinning down the loop ending to the surface of the pinblock. The nickel surface of the pin prevents corrosion.