7/8-9 x 3 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (15)

Category 1 is the highest attainable anchor category for reliability

8 x 1 5/8 Star Flat Decking Screws w/ NIBS Yellow Zinc Plated T17 - Carton (5000)

this TEKS® self-drilling screw has a Climaseal® coating for corrosion resistance

For 2 1/2 inch hex nut:

M27-3.0 DIN 985 Nylon Insert Locknuts Zinc Plated - Metric 5/8 Cotter Pins Plain Steel 7/8-9 x 3 Grade 5Our M27 3. 0 DIN 985 locknuts are constructed from zinc plated steel and feature a nylon insert for secure fastening and increased resistance to vibration. Their metric size makes them compatible with a wide range of fasteners and components.