Specification Brand : RSC BulletPoint1 : Size - Standard Thread Size: M8 (1.25mm Pitch); Thread Length: 12mm / 0.47"; Tee Wing Head Width: 36mm / 1.42"; Total Length: 25mm / 0.98"; Knob Style: Tee; Color: Black ( The threads are neat and clear, the force is even and deep, not easy to slip, and there are no burrs.) BulletPoint2 : Material - Zinc plated carbon steel threaded studs on knobs ensure durability, strength, functionality and wear resistance. Premium plastic clamping knobs provide durability, a smooth surface and comfortable grip. BulletPoint3 : Features - The tightly-in metal insert are machine-injected at high temperatures to securely connect the parts together, easy to install. T wing knobs are easy to grip and turn by hand, providing leverage and comfort, making it easier to tighten or loosen the knob. BulletPoint4 : Applications - Thumb screw knobs with hand bolts are commonly used in applications that require frequent and quick adjustments or tightening. Widely used in lathes, drill presses, packaging and woodworking machinery, printing and industrial equipment, and fixtures. BulletPoint5 : Note - Always tighten the thumbscrew knob securely to prevent any movement of the fixed assembly. Do not over-tighten the knob as this may damage or strip the threads in the mating assembly. Replace the knob if necessary. Color : Black CompatibleGrooveDiameter : 0.25 inches DriveSystem : Torx ExteriorFinish : Aluminum ExternallyAssignedProductIdentifier1 : 843441102830 ExternallyAssignedProductIdentifier2 : 0843441102830 ExternallyAssignedProductIdentifier3 : 00843441102830 FinishType : Polished GpsrSafetyAttestation : 1 HandOrientation : Ambidextrous IncludedComponents : Knob IncludedComponents1 : Knob IncludedComponents2 : Screw ItemName : 2 1/2 dia., 1/4-20 thds., Aluminum and Plastic T-Handles Black Polypropylene Textured Finish-Thru Hole (1 Each) ItemPackageDimensions_Height : 33.5 centimeters ItemPackageDimensions_Length : 1.9 centimeters ItemPackageDimensions_Width : 5.8 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemShape1 : T-Shaped ItemShape2 : Round ItemTypeKeyword : t-knobs Manufacturer : Reid Supply Company Material : Aluminum Material1 : Plastic Material2 : Metal MeasurementSystem1 : Imperial MeasurementSystem2 : Metric MetalType : Aluminum MetalType1 : Zinc MetalType2 : Carbon Steel ModelName : POWERTEC 5 Pack 5/16"-18 5 Star Knobs with 1" Threaded Stud, Thumb Screw Knobs with bolts for Lawn Mower, Umbrella Base, Woodworking Tools & Jigs, Clamps (QNB3007) ModelNumber : hta231011hh000617 NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 12 PackageLevel : unit PartNumber : KLK-25 ProductDescription : Unique Knob-Lok features a nylon locking element that resists vibration and prevents back off. It also allows for consistent installation torque and precise adjustments. No tools needed for safe and sure fastening. ProductSiteLaunchDate : 2009-06-15T16:29:41.000-00:00 Size : M8 x 12mm Style : Unique SupplierDeclaredDgHzRegulation : not_applicable Theme : Star UnitCount : 1 UnspscCode : 27111700