175 inches

providing much greater holding power than other self drilling anchors that are just a small screw in a larger screw

1/2-13 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated

#53 Heavy Duty Jobber Drill Bit

7 x 2 1/2 Simpson Trim-Head Wood Decking Screws - Square Drive 305 SS - Bulk Pail (2500)

M20-2.5 x 90 Hex Cap Screw 8.8 DIN 931 Zinc Plated Stubby Drill Bits - Fractional 175 inchesM20 2. 5 x 90 Hex Cap Screw 8. 8 DIN 931 Zinc Plated Class 8. 8 Hex Cap Screws are manufactured from medium carbon steel, quenched and tempered. These are premium quality, medium strength fasteners with partially threaded shanks conforming to DIN 931.