GRK 01101 R4 Pro-Pak Multi-Purpose Framing Screw, #9 x 2-1/2", 575-Count BF20 100 ft-lb of nut-busting torque

100 ft-lb of nut-busting torque

tools (hand)

Clean-out doors provide easy access for cleaning

18 x 16 mesh

Glass will not warp

GRK 01101 R4 Pro-Pak Multi-Purpose Framing Screw, #9 x 2-1/2", 575-Count BF20 100 ft-lb of nut-busting torqueThis design enhances the R4's versatility by allowing the fastener to countersink into even the hardest woods. The head of the screw closes the hole off with precision leaving no damaged fibers around the head. R4 screws 2" and longer have a four threaded CEE Thread. This enlarges the screw hole for the non threaded portion of the fastener, allowing the wood to settle easily. It increases the screw's drawing strength and reduces the friction on the