Specification Brand : MAKERS BOLT BulletPoint1 : Diameter: 1/4" | Length: 3-1/2" | Head diameter: 0.578" | Nut diameter: 1/4"-20 | Nut wrench size: 7/16" | Washer outside diameter: 47/64" BulletPoint2 : Kit includes 100 Grade 307A carriage bolts, 100 USS thick washers, 100 Grade 2/A hex nuts BulletPoint3 : Hot dip galvanized coating for superior corrosion resistance, Suitable for use in ACQ treaded lumber BulletPoint4 : The flat head provides a semi-flush finish and is perfect for decks, gazebos, pergolas, and other heavy duty applications BulletPoint5 : Meets or Exceeds: ASME B18.5, ASTM A307, ASME B18.2.2, ASTM A563, ASME B18.21.1, ASTM F2329 Color : Grey ExteriorFinish : Hot-Dipped Galvanized ExternallyAssignedProductIdentifier1 : 0810074744461 ExternallyAssignedProductIdentifier2 : 810074744461 ItemName : 1/4" x 3-1/2" (100 Pack) Galvanized Carriage Bolt Kit Grade 307A Includes 1/4" USS Flat Washers (100 pcs) and 1/4"-20 Hex Nuts (100 pcs), Hot Dip Galvanized for Exterior Use by Makers Bolt ItemPackageDimensions_Height : 29.9974 centimeters ItemPackageDimensions_Length : 1.1938 centimeters ItemPackageDimensions_Width : 26.0096 centimeters ItemTypeKeyword : carriage-bolts Manufacturer : Makers Bolt Material : Other MetalType : Copper NumberOfPieces : 1 PartNumber : CBK2556GV100 ProductDescription : 125mm Outer Dia 64mm Inner Diameter 5mm Thickness Belleville Spring Washer Surface Treatment: Add lubricating oil after phosphoric acid treatment. Features: Belleville springs can also be called disc springs,are conically formed annular discs, which are loaded in the axia_l direction. It offers a well-developed solution to many engineering problems through a unique combination of high force in a small space.It can be used as a single disc or arranged in stacks. Application: Belleville springs are widely used in mechanical products, such as press machine, artillery, aircraft and other heavy machinery,it can also be used as compression springs for automobile and tractor. Description in French 125mm Outer Dia 64mm Inner Diameter 5mm Thickness Belleville Spring Washer Product Name: Belleville Spring; Package Content: 1 x Belleville Spring Main Color: Copper Tone; Material: 60Si2MnA Weight: 335g; Outer Diameter: 125mm/5" Inner Diameter: 64mm/2.52''; Thickness: 5mm/0.2'' quality: DIN2093