wedge style expansion anchor for use in solid concrete or grout-filled masonry

They are available in high strength

9/16-12 x 5 Socket Cap Screw Alloy

21/64 Heavy Duty Drill Bit - Stubby Length

1/2-13 x 5 Hex Cap Screw SS 316 (A4)

#10 x 2 1/2 Simpson 6-Lobe Flat-Head Deck-Drive™ DWP Wood Screws 316 Stainless Steel (T25) - Box (1750) 3/4-16 Grade 5 Hex Cap Screws Zinc Plated wedge style expansion anchor for10 x 2 1 2 Simpson Flat Head Deck Drive DWP Wood Screws 6 Lobe Drive 316 SS Bulk Carton (1750) . Penetrate the hardest wood products with ease Unique 4 corner thread form with raised ridge technology greatly reduces driving torque 0. 230" diameter casing style head and slender #7 diameter for finish work and trim 6 lobe drive prevents driver bit cam out and stripping in recess Pre drilling recommended near board ends to prevent splitting Threaded