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The UpCart Original's innovative design and engineering will keep you moving effortlessly through whatever hurdles life throws at you
A bit for every job
Machined aluminum cutting head
Replacement hardware kit
tail piece
GRK 10221 UberGrade Rugged Structural Screw, 5/16" x 3-1/8", 500-Count In Stock The UpCart Original's innovative designGRK's RSS Rugged Structural Screw is made of specially hardened steel to provide you with high tensile, torque and shear strength. The sharp threads and points bite instantly into the material (including hardwood), reducing the splitting effect due to smaller shanks. RSS screws which are 3 1 8" and longer have a six threaded CEE thread that enlarges the screw hole for the non threaded portion of the fastener, allowing the wood to settle easily and
