Specification Brand : uxcell BulletPoint1 : Product Name: Hex Socket Cap Screw; Package Content: 10pcs x Hex Socket Cap Screw; Main Color: Silver Tone BulletPoint2 : Material: 304 Stainless Steel; Weight: 55g; Thread Type: UNC BulletPoint3 : Thread Size: 1/4"-20; Thread Length: 5/8"; Head Diameter: 9.28mm / 0.37" BulletPoint4 : Thread Coverage: Full Threaded; Head Style: Socket Cap BulletPoint5 : Head Height: 6.35mm / 0.25"; Hex Drive Size: 4.78mm / 0.19" Color : silver DriveSystem : Internal Hex 4.0mm DriveSystem1 : Internal Hex DriveSystem2 : External Hex ExteriorFinish : Stainless Steel ExternallyAssignedProductIdentifier1 : 712662985280 ExternallyAssignedProductIdentifier2 : 0712662985280 GpsrSafetyAttestation : 1 GradeRating : Grade 4.8 ItemName : uxcell 1/4"-20 x 5/8" 304 Stainless Steel Full Thread Hex Socket Head Cap Screws 10pcs ItemPackageDimensions_Height : 12.8 centimeters ItemPackageDimensions_Length : 1.8 centimeters ItemPackageDimensions_Width : 12.6 centimeters ItemPackageQuantity : 1 ItemShape : Domed ItemTypeKeyword : socket-cap-screws Manufacturer : uxcell ManufacturerGrade : standard Material : Stainless Steel MeasurementSystem : Metric MeasurementSystem1 : Imperial MeasurementSystem2 : Metric MetalType : Stainless Steel MetalType1 : Low Carbon Steel MetalType2 : Zinc MetalType3 : Alloy Steel ModelNumber : a17092700ux0329 NumberOfItems : 5 NumberOfPieces : 10 PartNumber : a17092700ux0329 ProductDescription : 304 Stainless Steel provides strength and offers good corrosion resistance in many environments. Socket Cap Screws are reliable and durable and are used in many applications. They are available in a variety of head styles and materials. With a high cylindrical head, socket cap head fasteners have a recessed driving area and offer high hold power at high torque levels. Hex socket drive systems are driven by hex wrenches or power tools with hexagonal bits. The size name of a threaded fastener includes information about the major external diameter, followed by the threads per inch, which indicates if it is coarse or fine. Coarse threads are better when working with brittle materials; they are sturdier and are easier to thread and unthread compared to fine. Used widely in the home and office appliance, equipments, communication equipments, ship assembly and other machinery industry.