GRK 12221 Rugged Structural Screw w/ Climatek Coating, 5/16" x 3-1/8", 100-Count N/A Reversible handing

Reversible handing

of wall board

reduce transmission wear

The H7 family of recessed housings are the standard in the industry for both commercial and residential applications

Load tested to 1

GRK 12221 Rugged Structural Screw w/ Climatek Coating, 5/16" x 3-1/8", 100-Count N/A Reversible handingGRK 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 screw which is 3 1 8" and longer have CEE thread that enlarges the screw hole for the non threaded portion of the fastener, allowing the wood to settle easily and increasing the screws