GRK 00105 R4 Multi-Purpose Framing Screw, #9 x 3-1/8", 1900-Count Thanksgiving Horn bypass

Horn bypass

Easy internal locking mechanism

Includes: Bolt

Autosense technology calculates how much salt and water is required to regenerate the system and only uses what is necessary

Fiber Cement

GRK 00105 R4 Multi-Purpose Framing Screw, #9 x 3-1/8", 1900-Count Thanksgiving Horn bypassThis 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