Specification Brand : HARFINGTON BulletPoint1 : Size - Standard thread size: M8 (1.25mm pitch); threaded stud length: 50mm / 1.97"; 6-star head size: 46mm x 28mm / 1.81" x 1.1"; step size: 24mm x 11mm / 0.94" x 0.43"; total length: 79mm / 3.11"; knob style: 6-star; color: black. BulletPoint2 : Material - 304 stainless steel stud on the clamping star knob has excellent corrosion resistance, oxidation resistance and high strength, ensuring durability and stability, preventing rust. PP plastic six-star handle knob is durable, and can withstand daily wear and tear, lightweight and easy to use. BulletPoint3 : Features - Hexagonal star-shaped design for easy grip, preventing slippage and ensuring stable operation. Combines screw-type structure and six-star handle design for convenient operation, enhancing user efficiency. Tightly-in metal insert is machine-injected at to securely connect the parts together. BulletPoint4 : Applications - Widely used in machinery, electronics, equipment, furniture, such as drill presses, lathes, routing jigs, fixtures, packaging and woodworking machinery, printing equipment. Sturdy thumb screws for the ultimate in adjusting and tightening control. Provide a smooth surface, comfortable grip and ergonomic operation. BulletPoint5 : Note - Ensure that replacement knobs are securely and properly installed on the corresponding female threaded component or fastener. Do not over-tighten as this may cause damage of the male thread knob. Choose the star knob size that suits your needs. Replace the knob if necessary. Color : Black CustomerPackageType : Flat Free Package (FFP) DriveSystem : Internal Hex DriveSystem1 : External Hex DriveSystem2 : Torx ExteriorFinish : Black ExternallyAssignedProductIdentifier1 : 636144845582 ExternallyAssignedProductIdentifier2 : 0636144845582 FinishType : Powder Coated GpsrSafetyAttestation : 1 GradeRating : NO HandOrientation : Ambidextrous IncludedComponents : Star Knob IncludedComponents1 : Nut IncludedComponents2 : Knob IncludedComponents3 : Screw IndoorOutdoorUsage : indoor ItemDepth : 15mm ItemName : HARFINGTON 2pcs Star Knobs M8 x 50mm 304 Stainless Steel Threaded Stud 46mm Plastic 6-Star Head Hand Tightening Thumb Screw Clamping Jig Knob Handle, Black ItemPackageDimensions_Height : 1.77 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 2 ItemShape : Star, Round ItemShape1 : Star ItemShape2 : Round ItemTypeKeyword : star-knobs Manufacturer : HARFINGTON Material : 304 Stainless Steel, PP Plastic Material1 : Plastic Material2 : Carbon Steel MaximumShearStrength : NO MetalType : Carbon Steel ModelName : Plastic T Knobs ModelNumber : hta240725hh000138 NumberOfBoxes : 1 NumberOfItems : 4 NumberOfPieces : 1 PartNumber : hta240725hh000138 ProductDescription : 304 stainless steel stud on the clamping star knob has excellent corrosion resistance, oxidation resistance and high strength, ensuring durability and stability, preventing rust and providing reliable performance in various environments. PP plastic six-star handle knob is durable, and can withstand daily wear and tear, lightweight and easy to use. Hexagonal star-shaped design for easy grip, preventing slippage and ensuring stable operation. Combines screw-type structure and six-star handle design for convenient operation, enhancing user efficiency. Star design adjusts and tightens easily for maximum control and flexibility without the need for additional tools. Threaded knobs provide a smooth surface, comfortable grip and ergonomic operation. The tightly-in metal insert is machine-injected at high temperatures to securely connect the parts together. Threads are neat and clear, the force is even and deep, not easy to slip, and there are no burrs. Hand tightening knobs are widely used in machinery, electronics, equipment, furniture, such as drill presses, lathes, routing jigs, fixtures, packaging and woodworking machinery, printing equipment. Sturdy thumb screws for the ultimate in adjusting and tightening control. Ensure that replacement knobs are securely and properly installed on the corresponding female threaded component or fastener. Do not over-tighten as this may cause damage of the male thread knob.