Zipbolt 13.810 Slipfix Railbolt - Connects Staircase Handrail to Newel Post - 1 Pack Efficiently attaches a handrail between 2 fixed posts Creates a strong joint without unsightly screws or nail holes Gear driven assembly simplifies process of joining parts together Pre-installs into both ends of the rail and retracts flush with the end grain Perfect for woodworking applications where a strong connection is needed