GRK 12221 Rugged Structural Screw w/ Climatek Coating, 5/16" x 3-1/8", 100-Count SpecialDiscount The stainless wing rack allows

The stainless wing rack allows users to hang chicken wings

This prevents the squirrels and raccoons from eating all the birdseed and tearing up your feeders

Large diameter bumper reduces elbow fatigue

For wood or metal screen & storm doors & other lightweight doors up to 2" thick

190t top with aluminex 99% UV protection

GRK 12221 Rugged Structural Screw w/ Climatek Coating, 5/16" x 3-1/8", 100-Count SpecialDiscount The stainless wing rack allowsGRK 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