Simpson 3-1/2 x 20 Heavy I-Joist Top-Flange Hanger HIT420 PACK:20 Pk What type of bit does

What type of bit does this screw use

Direct Replacement Sized to match OEM planer and jointer knife dimensions

The "R" designation in the model number indicates compatibility with rough-cut lumber dimensions

meaning the head sits flush with or below the surface of the material being fastened

Built to the highest quality standards and trusted by engineers and contractors

Simpson 3-1/2 x 20 Heavy I-Joist Top-Flange Hanger HIT420 PACK:20 Pk What type of bit doesThe Simpson HIT420 HIT Galvanized Top Flange Joist Hanger for 3 1 2 in. x 20 in. Engineered Wood by Simpson is engineered for standard 90 deg. connections of I joists to headers. This heavy top flange hanger features positive angle nailing (PAN), specifically created for I joists to minimize splitting, and includes extra triangle holes to allow higher uplift loads delivering a cost effective, code friendly alternative to welded hangers. Key Features