each anchor comes with a corrosion resistance rating of 1

5/8-11 x 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

this self-drilling screw has excellent resistance to corrosion and abrasion

1/2-13 x 2 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (200)

1-8 x 8 1/2 A325 Type 1 Heavy Hex Bolt Plain - Bulk Keg (25) Hex Washer Head Self Drilling Screws Zinc Plated each anchor comes with aThis 1 8 x 8 1 2 A325 Type 1 Heavy Hex Bolt Plain comes in a Bulk Keg of 25. It is made of durable, high strength steel and is designed for tough, heavy duty applications. Ideal for use in a variety of construction projects, this high quality bolt is perfect for industrial, commercial, and residential use.