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

Proof load strength of 90

At FMW Fasteners

Download Powers Drive® Pre-Expanded Anchor Technical Data

pre-expanded anchor

1 1/4-12 x 10 Socket Cap Screw Alloy 3/4-16 Socket Cap Screws Alloy Over-sized thread diameter tightly fills1 1 4 12 x 10 Socket Cap Screw Alloy . Alloy Socket Head Cap Screws from Brighton Best. Hardness of RC 38 43, meets or exceeds ASTM A574. Manufactured from heat treated alloy steel, 1960 series.