Sparex source: https://us.sparex.com/hex-head-cap-screw-5-8-x-8-tensile-strength-5-pcs-box-132293.html Product: Hex Head Cap Screw -5/8'' X 8'' Tensile Strength (5 Pcs. Box) - Sparex S.132293 SKU: S.132293 Listing note: SAE J429, Grade 5, Clear Zinc, Pack Quantity: 5 pcs. Detail enrichment pending: OEM cross references, fitment, catalog pages, and full specifications.