Specification Brand : uxcell BulletPoint1 : Head Diameter: 32mm / 1.2"; Total Height: 20mm/ 0.8" BulletPoint2 : Main Color: Black; Material: Metal, Plastic BulletPoint3 : Weight: 163g; Package Content: 10 x Clamping Knob BulletPoint4 : Thread Dia: M8; Product Name: Clamping Knob BulletPoint5 : Type: Screw On Color : Black DriveSystem : Torx DriveSystem1 : Star DriveSystem2 : Spline ExteriorFinish : Black ExteriorFinish1 : Black ExteriorFinish2 : Brass ExternallyAssignedProductIdentifier1 : 712662334958 ExternallyAssignedProductIdentifier2 : 0712662334958 FinishType : Polished GpsrSafetyAttestation : 1 HandOrientation : Ambidextrous IncludedComponents : Installation Hardware IncludedComponents1 : Knob IncludedComponents2 : Screw ItemDisplayDimensions_Height : 90 millimeters ItemName : uxcell 32mm Plastic Star Head M8 Female Thread Screw on Clamping Knob 10pcs ItemPackageDimensions_Height : 13.2 centimeters ItemPackageDimensions_Length : 2.3 centimeters ItemPackageDimensions_Width : 10 centimeters ItemPackageQuantity : 1 ItemShape : Star ItemTypeKeyword : star-knobs Manufacturer : uxcell Material : Metal Plastic Material1 : Thermoplastic Material2 : Stainless Steel MetalType : Stainless Steel MetalType1 : Iron MetalType2 : Brass ModelNumber : a15073000ux0053 NumberOfBoxes : 1 NumberOfItems : 10 NumberOfPieces : 10 NumberOfPieces1 : 10 NumberOfPieces2 : 100 PartNumber : a15073000ux0053 ProductDescription : Star knobs are made from plastic material ensuring durability and long-lasting performance. Iron metal screw-in female thread provides strength and excellent wear resistance for durability. Sturdy and durable threaded knobs provides a smooth surface, comfortable grip and ergonomic operation for enhanced user control and ease of use. The star design adjusts and tightens easily for maximum control and flexibility without the need for additional tools. Clamping knobs feature tightly-in metal insert (won't strip) for a variety of threaded applications, making it easy to install and secure in place. Through hole female star handles allow for easy installation and removal, versatile mounting options. Star knob handles are widely used in machinery, electronics, equipment, furniture and can be used on drill presses, lathes, routing jigs, fixtures, packaging and woodworking machinery, printing equipment or anywhere an M4 female thread is required. The threads are neat and clear, the force is even and deep, not easy to slip, and there are no burrs. If you need the flexibility of easy installation and removal, choose a through-hole design. If direct mounting is preferred or space constraints exist, choose the non-through-hole design. Note: Ensure that the knob is securely and properly installed on the corresponding male threaded component or fastener. Choose the star knob size that suits your needs. Do not over-tighten as this may cause damage of the knob or threaded parts.