GRK GRK-16231 - RSS™ BLACK STRUCTURAL SCREW 5/16" X 5-1/8"- 50pk D0770FA Aluminum and Other Soft Metals

Aluminum and Other Soft Metals

Black Oxide Drill Bits

The MAC5200 delivers industrial power and results with improved durability and includes rugged wheels and folding handle for easy transport

Bags are 10" deep

Heavy-Duty/Industrial Grade with Ball Bearings for Greater Durability

GRK GRK-16231 - RSS™ BLACK STRUCTURAL SCREW 5/16" X 5-1/8"- 50pk D0770FA Aluminum and Other Soft MetalsRSS screws that are 3 1 8 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 screws drawing strength. The CEE Thread also reduces the friction on the screw shank which can result in lowering the driving torque and the likelihood of splitting the wood. This is why the RSS screw is an efficient lag screw alternative. Our round head with built in