Simpson 1" Coupler Nut w/ Witness Hole CNW1 Core Bit and manufactured to the highest

and manufactured to the highest quality standards - the trusted choice of engineers and contractors for residential and commercial structural applications alike

accuracy and long cutting life in wood and metal

The red painted cap head is engineered to match popular composite decking colors

3/8" x 1-1/4" Downcut Spiral Bit (1/2" shank)

Simpson 1" Coupler Nut w/ Witness Hole CNW1 Core Bit and manufactured to the highestSimpson CNW1 CNW 1 in. Coupler Nut with Witness Hole by Simpson Strong Tie is engineered to connect threaded rods to one another and to anchor bolts. Designed to exceed the specified minimum tensile capacity of the corresponding bolts and threaded rod, this 1 inch coupler nut features a positive stop for reliable thread engagement and a Witness hole to verify when rods are properly installed. Key Features Tighten the two rods until each all thread rod