Galvanized nuts are over tapped per ASTM A563

1/4 x 2 1/2 Nailon™ Anchor Mushroom Zinc Plated (100)

5/8 x 4 Titen HD Concrete Anchor Zinc Plated (10)

you protect your surfaces from enduring sudden failures or breakages while promoting long-term durability

1/2-20 x 6 Hex Cap Screw SS 316 (A4) 3/4-10 Flat Socket Cap Screws Alloy Galvanized nuts are over tapped1 2 20 x 6 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.