Simpson #12 x 2-1/2" Self-Drilling Flat-Head Screw with Wing, 410 Stainless Steel PACK:100 Pk making it compatible with SDS-max

making it compatible with SDS-max rotary hammer drills

3-Axis Acu-Rite 203 DRO (Knee) provides precise

CSA/CUS Certified for safety and compliance

the SFC will not interfere with stud lips up to 3/4 in

Simpson #12 x 2-1/2" Self-Drilling Flat-Head Screw with Wing, 410 Stainless Steel PACK:100 Pk making it compatible with SDS-maxModel No. F12C250FD Coating Material. Type 410 Stainless Steel Screw Size. #12 Length (in.) 2 1 2 Head Diameter (in.) 0. 380 Drive Type. #3 Square Head Type. Flat Head Shank Type. Shank Slot Thread Type. Machine Threads Thread Length (in.) Full TPI. 24 Max. Grip Length (in.) 2. 375 Point Type. Drill Point with Wings Point Size. 3 Use this screw for securing wood, plywood and fiber cement to steel (up to 0. 209" thick). Wings bore through wood to