Coarse thread: 90

1/4 x 1 1/2 Mushroom Spike 316 SS (100)

3/4-10 x 7 A307 Grade A Carriage Bolt Zinc Plated

1-8 x 2 Hex Cap Screw SS 316 (A4)

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

7/16-14 x 5 Hex Cap Screw SS 316 (A4) 7/8-14 Socket Cap Screws Alloy Coarse thread: 907 16 14 x 5 Hex Cap Screw SS 316 (A4) . 316 series stainless steel differs from 18 8 by its molybdenum content (2 3%) and a higher nickel content (10 14%). 316 stainless steel has greater corrosion resistance than 18 8 as well as superior strength at high temperatures.