National Hardware Box Rail Hangers Sealants & Tape Specially designed parabollic flute form

Specially designed parabollic flute form clears chips and debris fast

High impact polypropylene plastic

Broached teeth are ideal for most surfaces including black

Stucco and concrete

rotatable gear housing can be positioned every 90 degree

National Hardware Box Rail Hangers Sealants & Tape Specially designed parabollic flute formDesigned for use on box rail with wood frame sliding doors from 1 1 2" to 2" thick For use with #59, #5100, #5103, #5104, #5105, #5110, #5114 or #5116 box rail Packed with 2 end caps and bolts for attaching door strap Adjustable both laterally and vertically Comes with self lubricating Delrin bearings Made of durable one piece, precision formed steel Safe Working Load 225 lb. per hanger