Description: Made of steel and chrome plated for beauty and durability 5/8" long thread for stock valve covers For fast and easy removal of valve cover Wing bolts are standard "Y" top bolts Fabricated of strong lightweight aluminum Sliver anodized finish Includes 4 per set with set screws. Specification: Color: Chrome Finish: Chrome Material: Steel Thread Size: 1/4"-20 Type: Bolt WARNING CA Proposition 65: Yes: Fits Chevy V8 Standard Y Top 1/4 in. 20 X 5/8 in. L Chrome Plated Steel FEATURES: .