Simpson 1/4 x 3 Mushroom Head Crimp Drive Anchor CD25300M PACK:500 Pk 349 is a 1-3/8" Forstner

349 is a 1-3/8" Forstner Bit for drilling precise flat-bottom holes in softwood

This helps prevent post-end rot and extends the service life of the structure

Is the CCO7 suitable for use in high-wind or seismic zones

Installation of Durock cement backerboard

Knife Dimensions 40x18x2mm

Simpson 1/4 x 3 Mushroom Head Crimp Drive Anchor CD25300M PACK:500 Pk 349 is a 1-3/8" ForstnerThe Simpson Strong Tie Crimp Drive 1 4 in. x 3 in. Zinc Plated Mushroom Head Anchor is an easy to install expansion anchor engineered for use in concrete and grout filled block. The preformed curvature along the shaft creates a built in expansion mechanism that secures the anchor firmly in place, eliminating the need for a secondary tightening procedure and speeding up overall installation. The tamper proof mushroom head profile makes this anchor a