#7 x 3" Simpson Strong-Tie T15 Trim Head Wood Screw - 305 Stainless Steel, Pkg. 1 Lb. Diamond Blades and Accessories The Simpson QDPROLDHG2 auto-feed Underlayment/Backerboard

The Simpson QDPROLDHG2 auto-feed Underlayment/Backerboard attachment is designed to quickly and precisely install cement board to underlayment

Fully threaded for high withdrawal resistance

installation guide

No predrilling required for standard 20- to 16-gauge steel

you will need to replace the mixing nozzle as the epoxy is likely to have started to harden in the nozzle

#7 x 3" Simpson Strong-Tie T15 Trim Head Wood Screw - 305 Stainless Steel, Pkg. 1 Lb. Diamond Blades and Accessories The Simpson QDPROLDHG2 auto-feed Underlayment/BackerboardThe Trim Head 6 Lobe Drive Screw is designed for composite and PVC decking where a smooth, low profile finish is just as important as long term strength. Made from 305 stainless steel for superior corrosion resistance, these screws stand up to marine and high exposure environments. Engineered for performance, the screw features a 6 lobe star drive that reduces cam out and extends bit life. A Type 17 point ensures quick starts, while coarse shank