the Alligator anchors expand to allow for better weight distribution

8 x 1 1/4 Simpson Fiber-Cement Screws T17 316 SS - Carton (1000)

1 3/4 x 23 ITM SDS Max X-Cutter Hammer Drill Bit

480 inches

7/8-9 x 5 1/2 Grade 5 Hex Cap Screw Zinc Plated

27/64 x 12 High Speed Aircraft Bit Cobalt (3) Square Truss-Head Wood Screws 305 Stainless Steel the Alligator anchors expand to27 64 x 12 High Speed Aircraft Bit Cobalt . Manufactured to NAS 907 Type J specifications Heavy duty construction for portable or machine drilling For use in drilling in high tensile strength alloy steels, stainless steels, titanium and other difficult to machine materials Made in the USA