Specification Brand : NACX BulletPoint1 : Thread Size: M5 x 20mm/0.19” x 0.78” (D*L); Head Diameter: 25mm/0.98”. The package item is clamping knob, also known as thumb screw, star hand knob, or tightening screw knob. BulletPoint2 : It is designed to be used as a tightening or clamping device in various mechanical applications. the head of the knob is made of plastic, which provides good toughness and strong resistance to aging, ensuring the product will perform well over time. Additionally, the screw portion of the knob is designed to be corrosion-resistant, making it suitable for use in harsh environments. BulletPoint3 : One of the key features of this plastic hand knob is its ease of installation, as it can be attached or removed without the need for any additional tools. BulletPoint4 : The screw-on type design, with smooth lines and finger grip spacing, allows for easy turning even with just your hands. this makes it an ideal solution for applications where tools are not readily available or where quick adjustments are necessary. BulletPoint5 : The clamping knob is widely used in a variety of industrial equipment, including lathes, mechanical equipment, instruments, and apparatus. Its versatility and ease of use make it for a range of applications in the manufacturing, engineering, and scientific industries. Color : Black ExteriorFinish : White Zinc Plated IncludedComponents : 25 x Screw Knobs ItemName : NACX M5 x 20mm Thread Clamping Knob, Thumb Screw, Star Hand Knob Tightening Screw Knob for Machinery, 25Pcs ItemPackageDimensions_Height : 5 inches ItemPackageDimensions_Length : 3 inches ItemPackageDimensions_Width : 0.7 inches ItemPackageQuantity : 1 ItemTypeKeyword : star-knobs Manufacturer : NACX Material : Plastic Material1 : Plastic Material2 : Carbon Steel ModelName : 563 ModelNumber : 563 NumberOfBoxes : 1 NumberOfItems : 25 PartNumber : Zixyqol8xkanqgu6h ProductDescription : Specification: Product Name: Screw Knob Thread Size: M5 x 20mm/0.19” x 0.78” (D*L) Head Diameter: 25mm/0.98” Total Height: 28mm/1.1” Material: Plastic, Carbon Steel Color: Black