CERTIFIED STAINLESS STEEL: Made from 18-8 (304) mill certified stainless steel, our premium black lag screws undergo testing to ensure the bolts you receive are grade 18-8 stainless and meet size specifications.
BLACK OXIDE: These stainless black screws are coated with Black Oxide proudly applied in the USA to military specifications, giving the screws a sleek look and added corrosion and abrasion resistance.
PROJECT CENTER: These metal wood screws are great for exterior household and industrial applications such as deck building or joining lumber.
SIZING: 5/16 inch x 2-1/2 inch | Diameter: 5/16 in | Length: 2-1/2 in | Thread Type: Coarse (standard) | Head width across the Flats: 1/2" | Quantity: 10 Pieces
SHOP WITH CONFIDENCE: Makers Bolt proudly finishes and packages these fasteners in the USA ensuring quality and conformance to specifications.