The Surewood-LNL 5/8 in. x 3 in. Steel Concealed-Spring Bolt-Fastening Kit is a rail joinery system designed to save you time when joining handrails to fittings. It eliminates the need to drill holes underneath the rail and fittings， helping to create a tight， professional installation that's free of plug holes. From stair treads， stair railing and a complete selection of Stair Parts， Surewood-LNL has what you need to make your stairs beautiful.
5/8 in. x 3 in. Dimensions
Made of steel
Fully concealed， no need to drill holes underneath the handrail and fill with wood plugs
Eliminates the need for rail bolt kits and rail bolt wrenches
Requires basic carpentry skills and woodworking tools
For interior use only
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