Specification Brand : PRIME-LINE BulletPoint1 : Size: 1/4 inch-20 X 2 inch BulletPoint2 : Headless screw that sits flush or below the surface once installed BulletPoint3 : Internal socket drive requires Allen wrench (hex key) to install BulletPoint4 : Installs into an internally threaded hole to hold an object into place BulletPoint5 : Often used in machinery to secure gears to shafts BulletPoint6 : Thread Type: Coarse, Thread Class: UNC-3A, Point Style: Cup Point BulletPoint7 : Specification(s) Met: ASME B18.3 and ASME B1.1 Color : Stainless Steel DriveSystem : Internal Hex DriveSystem1 : Internal Hex DriveSystem2 : External Hex ExteriorFinish : Stainless Steel ExternallyAssignedProductIdentifier1 : 049793190598 ExternallyAssignedProductIdentifier2 : 0049793190598 ExternallyAssignedProductIdentifier3 : 00049793190598 GpsrSafetyAttestation : 1 GradeRating : Premium ItemName : Prime-Line 9183841 Socket Set Screws, 1/4 in-20 X 2 in, Grade 18-8 Stainless Steel (10 Pack) ItemPackageDimensions_Height : 7.3152 centimeters ItemPackageDimensions_Length : 1.1938 centimeters ItemPackageDimensions_Width : 7.0104 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : set-screws Language : english Manufacturer : Prime-Line ManufacturerGrade : high-quality Material : Stainless Steel MaximumShearStrength : 205 MPa MeasurementSystem : Imperial MeasurementSystem1 : Imperial MeasurementSystem2 : Metric MetalType : Stainless Steel ModelName : 9183841 ModelNumber : 9183841 NumberOfItems : 10 NumberOfPieces : 10 PackageLevel : unit PartNumber : 9183841 ProductDescription : Set Screw Type Ball Transfer Unitwith Spring Plunger Function for Upward Facing Applications. It is a set screw type ball roller with spring plunger function. The internal spring receives loads evenly even when the load is unbalanced. It can also be used as a general spring plunger with ball for fixing and locating the workpiece. The smooth rotation of the ball reduces friction between the main ball and receiving side.