Specification Brand : uxcell BulletPoint1 : Thread Size: 1/4-20 UNC ;Thread Length: 8.89mm / 0.35inch ;Shoulder Size: 5/8inch x 5/16inch(L*D) ; BulletPoint2 : Made of alloy steel, with high strength, high toughness, wear-resistance, and corrosion resistance. BulletPoint3 : The hex socket head can achieve high-torque tightening with limited clearance. BulletPoint4 : Shoulder bolts, also called stripper bolts, are mechanical fasteners that can be screwed into one part and provide a free rotation pin joint connection with another part. BulletPoint5 : The standard shoulder of shoulder bolt makes it suitable for most machinery and equipment. Usually used for punch and die assemblies. Color : Silver DriveSystem : Phillips ExteriorFinish : Blue Zinc Plated ExternallyAssignedProductIdentifier1 : 049793116741 ExternallyAssignedProductIdentifier2 : 0049793116741 ExternallyAssignedProductIdentifier3 : 00049793116741 FinishType : Zinc GpsrSafetyAttestation : 1 ItemDisplayWeight : 1 pounds ItemName : uxcell Alloy Steel Hexagon Socket Head Shoulder Screws Bolts, 5/8" Shoulder Length, 5/16" Shoulder Dia, 5/16-20 UNC Thread, 12pcs ItemPackageDimensions_Height : 9 centimeters ItemPackageDimensions_Length : 1.8 centimeters ItemPackageDimensions_Width : 6.1 centimeters ItemPackageQuantity : 1 ItemShape : Cylinder ItemTypeKeyword : shoulder-screws Manufacturer : uxcell ManufacturerGrade : heavy-duty Material : Alloy Steel MeasurementSystem : Metric MetalType : Alloy Steel ModelName : 9003607 ModelNumber : a18111200ux0467 NumberOfItems : 12 NumberOfPieces : 12 PackageLevel : unit PartNumber : a24111400ux1080 ProductDescription : Made of alloy steel, with high strength, high toughness, wear-resistance, and corrosion resistance. The hex socket head can achieve high-torque tightening with limited clearance. Shoulder bolts, also called stripper bolts, are mechanical fasteners that can be screwed into one part and provide a free rotation pin joint connection with another part. The standard shoulder of shoulder bolt makes it suitable for most machinery and equipment. Usually used for punch and die assemblies. Specification: Material: Alloy Steel Finish: Blackening Performance Grade: 12.9 Drive Type: Internal Hex Thread Size: 1/4-20 UNC Thread Length: 8.89mm / 0.35inch Shoulder Size: 5/8inch x 5/16inch(L*D) Head Size: 10.93 x 5.59mm / 0.43inch x 0.22inch(D*T)