Simpson 3d - 1-1/4" Shake and Shingle Siding/Roofing Nail, 316 Stainless Steel HSLQ Heavy Shear Transfer Angle the mechanically galvanized finish means

the mechanically galvanized finish means this model is code listed for exterior applications

The annular rings along the shank create mechanical interlock with wood fibers as the nail is driven

Designed for real-world driving performance - the box thread design with raised-ridge technology actively reduces the torque needed to fully seat the fastener

What type of joist is the S/LBV1

Simpson 3d - 1-1/4" Shake and Shingle Siding/Roofing Nail, 316 Stainless Steel HSLQ Heavy Shear Transfer Angle the mechanically galvanized finish meansSimpson 3d 1 1 4" Shake and Shingle Siding and Roofing Nail in Type 316 Stainless Steel by Simpson Strong Tie delivers a corrosion resistant fastening solution built for demanding exterior applications. Designed for securing wood shakes and shingles on both roofing and siding installations, this 14 gauge nail features a slender annular ring shank and diamond point that work together to reduce wood splitting while dramatically improving withdrawal