Monster Fastener Zinc Plated Grade 8 Steel Coarse Thread Hex Cap Screws Size:5/16"-18 x 1-1/2" (50 pcs) Apply every four weeks for

Apply every four weeks for best results

ProCoat coating corrosion resistant to harsh chemicals as well as UV rays and salt

Standard grade

Carefully read all directions prior to use

Washable filter

Monster Fastener Zinc Plated Grade 8 Steel Coarse Thread Hex Cap Screws Size:5/16"-18 x 1-1/2" (50 pcs) Apply every four weeks forA hex cap screw has a hexagonal head, designed to be driven by a wrench. Diameter: 3 4" Length: 6" Material: Steel Finish: Yellow Zinc Head Style: Hex (1 1 8" Wrench) Thread Size: 10 (Coarse) Thread Length: 2" Hardness: Grade 8 Type: Cap Screw Diameter: 3 8" Length: 3 1 2" Material: Steel Finish: Yellow Zinc Head Style: Hex (9 16" Wrench) Thread Size: 16 (Coarse) Thread Length: 1" Hardness: Grade 8 Type: Cap Screw Diameter: 3 8" Length: 3" Material: