Specification Brand : Newport Fasteners BulletPoint1 : Diameter-Threads Per Inch: 5/8-11 BulletPoint2 : Length: 2-1/2 inch BulletPoint3 : Grade 5 bolts for moderate stress applications. Stronger than Grade 2 bolts but not as strong as Grade 8 bolts ConnectorType : Plug DriveSystem : Square ExteriorFinish : Plain ExternallyAssignedProductIdentifier1 : 0696297894264 ExternallyAssignedProductIdentifier2 : 696297894264 GradeRating : Grade 5 ItemName : 5/8 x 2-1/2" Plow Bolts Grade 5, #3 Head, Plain Steel (Quantity: 150) Coarse Thread, Fully Threaded, 5/8-11 x 2-1/2" ItemTypeKeyword : plow-bolts Manufacturer : Newport Fasteners ManufacturerGrade : Grade 4 Material : Steel NumberOfItems : 150 PartNumber : 526157-150 ProductDescription : Plow bolts are a specialized type of fastener. These are similar to carriage bolts, but the head of a plow bolt is concave or flat. The underside of the head tapers down into a cone-shape which is engineered to fit into a countersunk recess ProductSiteLaunchDate : 2018-08-24T05:14:17.935Z Size : 2.5 inches UnitCount : 1 UnspscCode : 31161500