Specification Brand : FABORY BulletPoint1 : Price For: Each Material Grade: 18-8 Material: 18-8 Stainless Steel Fastener Industry Standards: ASME B18.5 Fastener Thread Type: UNC (Coarse) Drill Size: 5/16 Fastener Finish: Plain Basic Material: Stainless Steel System of Measurement: Inch Square Width: 0.307" to 0.324 Head Type: Round Carriage Bolt Type: Carriage Bolt Meets/Exceeds: ASME B18.5 Item: Carriage Bolt BulletPoint2 : Square Height: 0.156" to 0.187 Thread Size: 5/16"-18 Head Dia.: 0.688" to 0.719 Head Height: 0.156" to 0.176 Neck Type: Square Fastener Length: 2-1/2 Fastener Thread Direction: Right Hand Length: 2-1/2 Dia./Thread Size: 5/16"-18 Finish: Plain Country of Origin (subject to change): Multiple BulletPoint3 : 【Bolts you can rely on】 Our carriage head bolts are very strong and very suitable for indoor and outdoor use. Whether you are connecting a pile to a salt water jetty or fixing a swing, you can rely on carriage bolts to fix and use. BulletPoint4 : 【Perfect for taking it with you】 The carriage bolt is perfect for taking it with you when you need it! Use in various applications, various conditions and various environments! Bolts are high-quality bolts on the market, and we 100% adhere to our proposition. They are strong, corrosion-resistant and durable! BulletPoint5 : 【Package Content】 20PCS x Carriage Bolt Color : Silver ExteriorFinish : Stainless Steel ExteriorFinish1 : Unfinished ExteriorFinish2 : Stainless Steel ExternallyAssignedProductIdentifier : 7430988492970 GradeRating : Grade A ItemDisplayWeight : 0.96 pounds ItemName : Value Brand, U51500.031.0250, Carriage Bolt, 5/16-18, 2-1/2 in., PK50 ItemPackageDimensions_Height : 12.4 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 8.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : carriage-bolts Manufacturer : FABORY ManufacturerGrade : Grade A Material : Stainless Steel ModelNumber : MRO190830N-0157 NumberOfItems : 1 PartNumber : U51500.031.0250 ProductDescription : 'Carriage Bolt, Inch, Neck Type Square, Basic Material Stainless Steel, Material Grade 18-8, Fastener Finish Plain, Dia./Thread Size 5/16 In.-18, Fastener Length 2-1/2 In., Fastener Thread Direction Right Hand, Fastener Thread Type UNC (Coarse), ASME B18.5, Drill Size 5/16 In., Head Dia. 0.688 In. to 0.719 In., Head Height 0.156 In. to 0.176 In., Head Type Round, Square Height 0.156 In. to 0.187 In., Square Width 0.307 In. to 0.324 In., Package Quantity 50' ProductSiteLaunchDate : 2018-09-20T19:11:39.401Z Size : 2.5 inches SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 31161500