GRK Fasteners RSS 12231 Structural Screw, 5/16 in Thread, 5-1/8 in L, Washer Head, Star Drive, Steel, 50/PK CAULKING GUNS Insulates screen doors and stops

Insulates screen doors and stops drafts

Model Number: N109-070

The Apollo 3/4 in bronze double union water pressure regulator with gauge sets a new standard in water pressure regulation

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GRK Fasteners RSS 12231 Structural Screw, 5/16 in Thread, 5-1/8 in L, Washer Head, Star Drive, Steel, 50/PK CAULKING GUNS Insulates screen doors and stopsGRK's RSS 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 that are 3 1 8 in and longer have CEE threads which enlarge the screw hole for the non threaded portion of the fastener, allowing the wood to settle easily and increases the screw's drawing