Zipbolt 13.610 UT Railbolt - Connects Staircase Handrails to Balusters, Spindles, Newels - 1 Pack - Includes 5mm Hex Bit with Quick Release Shank The Zipbolt UT 13.610 Railbolt efficiently fixes a handrail to balusters, spindles, or newel posts Provides a strong joint without unsightly screws or nail holes Gear driven assembly simplifies process of joining parts together 5mm hex bit with quick release shank included (Zipbolt 40.520 7mm deep socket hex bit available separately for screw shaft installation)