Simpson 3d - 1-1/4" Wood Siding Nail, 316 Stainless Steel Dowel Drill Bits 1-3/4" length - sized appropriately

1-3/4" length - sized appropriately for standard roofing material attachment to typical decking thicknesses

When one cutting edge dulls

This design eliminates the need for web stiffeners

What are the dimensions of the CTRBTF04304 center pilot bit

Simpson 3d - 1-1/4" Wood Siding Nail, 316 Stainless Steel Dowel Drill Bits 1-3/4" length - sized appropriatelySimpson 3d Wood Siding Nail in Type 316 Stainless Steel by Simpson Strong Tie is a 1 1 4" fastener engineered for securing wood siding panels in demanding outdoor environments. Featuring an annular ring shank for superior withdrawal resistance and a checkered full round head that blends naturally with wood grain, this nail delivers the holding power and pull through resistance that exterior siding applications require. Manufactured from Type 316