Specification Brand : HARFINGTON BulletPoint1 : Size - Standard metric thread size: M5 (0.8mm pitch); thread length: 12mm / 0.47"; head size: 13mm x 8mm / 0.51" x 0.31" (D*T); step size: 10mm x 2mm / 0.39" x 0.08" (d*t); total length: 22mm / 0.87"; color: black; knob style: knurled BulletPoint2 : Material - 304 stainless steel threaded stud provides excellent corrosion resistance, oxidation resistance and high strength, ensuring durability and stability, preventing rust and providing reliable performance in various environments. Matte plastic is often more resistant to scratches and wear than glossy finishes, and is less likely to show fingerprints or smudges, maintaining a cleaner appearance over time. BulletPoint3 : Features - Knurled texture on the hand knob surface provides better grip, making it easier to tighten or loosen the knob. Tightly-in threaded metal stud insert is machine-injected at high temperatures to securely connect the parts together, easy to install. Matte surface enhances grip, making it easier and more comfortable to hold. BulletPoint4 : Applications - Knurled thumb screws are commonly used in applications that require frequent adjustments or tightening. Metric male hand knobs can be widely used in lathes, drill presses, sawing machines, packaging and woodworking machinery, printing, instrument and industrial equipment, and fixtures. BulletPoint5 : Note - Always tighten the threaded knob handle 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 black plastic hand knob if necessary. Color : Black ExternallyAssignedProductIdentifier : 7689760000340 IncludedComponents : Wheel ItemDisplayDimensions_Height : 2.95 centimeters ItemDisplayDimensions_Length : 3.07 centimeters ItemDisplayDimensions_Width : 2.95 centimeters ItemDisplayWeight : 1.06 pounds ItemName : HARFINGTON 20pcs Knurled Clamping Knobs Thumb Screws M5 x 12mm Metric Male Thread 13mm Matte Plastic Head 304 Stainless Steel Stud Hand Threaded Knob Thumbscrew Handle, Black ItemPackageDimensions_Height : 9.1 centimeters ItemPackageDimensions_Length : 2 centimeters ItemPackageDimensions_Width : 6.2 centimeters ItemTypeKeyword : knurled-knobs Manufacturer : HARFINGTON Material : Carbon Steel Material1 : Stainless Steel Material2 : Plastic ModelName : Hand Wheels ModelNumber : hta240810hh000274 NumberOfBoxes : 1 NumberOfLithiumMetalCells : 1 PartNumber : hta240810hh000274 ProductDescription : 304 stainless steel threaded stud provides excellent corrosion resistance, oxidation resistance and high strength, ensuring durability and stability, preventing rust and providing reliable performance in various environments. The knurled texture on the hand knob surface provides better grip, making it easier to tighten or loosen the knob. The threads are neat and clear, the force is even and deep, not easy to slip, and there are no burrs. Tightly-in threaded metal stud insert is machine-injected at high temperatures to securely connect the parts together, easy to install. The matte surface enhances grip, making it easier and more comfortable to hold. Matte plastic is often more resistant to scratches and wear than glossy finishes, and is less likely to show fingerprints or smudges, maintaining a cleaner appearance over time. Knurled thumb screws are commonly used in applications that require frequent adjustments or tightening. The metric male hand knobs can be widely used in lathes, drill presses, sawing machines, packaging and woodworking machinery, printing, instrument and industrial equipment, and fixtures. Always tighten the threaded knob handle 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.