276 inch diameter and 6-lobe drive makes for a strong fastening and installation

Their flat head design allows for a low profile while fastening

10 x 4 1/2 Phillips Bugle Decking Screws Yellow Zinc Plated - Carton (500)

high quality fastening that is corrosion-resistant

3/8 L9 USS Tension Flatwasher Yellow Zinc Plated Domestic USA (100)

#3 HSS Quick Change Hex Shank Step Drill Bit, (1/4" - 3/4" by 1/16"), VAC3HEX M36-4.00 Socket Cap Screws 12.9 Alloy Plain DIN 912 276 inch diameter and 6-lobe1 4" quick change hex shank. Single bit can be used for drilling a wide range of hole sizes in metal, plastic and wood. Exlusive single radial concave flute crates perfectly round holes in metal, plastic wood and other thin materials without center punching. Contructed of industrial grade high speed molybdenum steel, heat treated and temperature for long life. No center punching needed. Automatically deburrs top side of hole. Ideal for steel, copper,