GRK Fasteners RSS 10221 Structural Screw, 5/16 in Thread, 3-1/8 in L, Washer Head, Star Drive, Steel HAND MECHANICS The bulkhead and tank fitting

The bulkhead and tank fitting by Green Leaf� including outlet flange and inside bolt seal double seal flange are manufactured in a variety of sizes ranging from 1/2 to 4 in

control and less hand fatigue

250 - 350 sq-ft Coverage

Dwellings not exceeding 3 floors above grade

right or left installation pivot door

GRK Fasteners RSS 10221 Structural Screw, 5/16 in Thread, 3-1/8 in L, Washer Head, Star Drive, Steel HAND MECHANICS The bulkhead and tank fittingGRK'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