Over-sized thread diameter tightly fills the existing spike holes for better holding strength and a watertight fit #3 square drive virtually eliminates cam-out during hard to reach installations Durable UV resistant white and brown head paint matches most gutter systems Thick galvanized base coating guaranteed not to rust or react with aluminum Free driver bit included American made

3/16 x 2 Mushroom Spike 316 SS (100)

3/16 x 1 1/2 Mushroom Spike 316 SS (100)

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vibration resistant anchor for use in concrete

17/64 x 12 High Speed Aircraft Bit Cobalt (6) Combo Flat Sleeve Anchors Zinc Plated Over-sized thread diameter tightly fills17 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