Specification Brand : Chenango Supply BulletPoint1 : 300 Series Stainless Steel, (18-8) BulletPoint2 : Tensile - 100,000 psi to 125,000 psi, Hardness - 85 Rockwell B BulletPoint3 : Great corrosion resistance for outside applications BulletPoint4 : 50 Pieces BulletPoint5 : Marine applications: Carriage bolts are sometimes used in marine applications, such as the construction of boats and other watercraft. They are resistant to corrosion, making them suitable for use in saltwater environments BulletPoint6 : 16 TPI (Threads Per Inch). Sold as a package of 12 carriage bolts & includes Bolts and nuts Color : Silver ExteriorFinish : Stainless Steel ExternallyAssignedProductIdentifier1 : 716715821815 ExternallyAssignedProductIdentifier2 : 0716715821815 GradeRating : Grade 5 ItemDisplayDimensions_Height : 2 inches ItemDisplayDimensions_Length : 12.5 inches ItemDisplayDimensions_Width : 2 inches ItemDisplayWeight : 4 pounds ItemName : Stainless 1/4-20 x 4 Carriage Bolt (3/4" to 5" Lengths Available in Listing), 18-8 Stainless Steel,50 Pieces (1/4-20x4) ItemPackageDimensions_Height : 14.224 centimeters ItemPackageDimensions_Length : 5.842 centimeters ItemPackageDimensions_Width : 9.398 centimeters ItemPackageQuantity : 50 ItemShape : Round Head With Square Neck ItemTypeKeyword : carriage-bolts Manufacturer : Chenango Supply ManufacturerGrade : Grade 8 Material : Stainless Steel Material1 : Stainless Steel Material2 : Iron MetalType : Stainless Steel ModelNumber : 856 NumberOfItems : 12 NumberOfPieces : 50 PartNumber : S04-040400-50 ProductDescription : A carriage bolt, coach bolt or round head square neck bolt is a form of bolt used to fasten metal to wood. It is distinguished from other bolts by its shallow mushroom head and that the shank cross-section of the bolt is circular for most of its length, as usual, but the portion immediately beneath the head is formed into a square section. This makes the bolt self-locking when placed through a square hole in a metal strap, or a round hole in most wood. This allows the fastener to be installed with only a single tool, a spanner or wrench, working from one side. The head of a carriage bolt is usually a shallow dome. The squared section is of the same size as the diameter of the bolt shank, with a plain unthreaded shank. Carriage bolts were developed for use through iron strengthening plates on either side of a wooden beam. It is commonplace though to use them to bare timber, the squared section giving enough grip to prevent rotation. ProductSiteLaunchDate : 2016-08-16T01:24:40.846Z Size : 1/4-20x4 Style : Carriage Bolt Set 5/16 X 1 Inch SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 50 UnspscCode : 31161500