Specification Brand : HARFINGTON BulletPoint : 2x KNURLED ADJUSTABLE FOOT SCREW M4 M5 M6 BOLT KNOB SCREW PLASTIC STEEL FEET 4MM 5MM 6MM BulletPoint1 : Size - Standard metric thread size: M4 (0.7mm pitch); thread length: 25mm / 0.98"; 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: 36mm / 1.42"; 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 DriveSystem : Spline ExteriorFinish : Black ExternallyAssignedProductIdentifier : 9396079984855 ExternallyAssignedProductIdentifier1 : 703064749792 ExternallyAssignedProductIdentifier2 : 0703064749792 ExternallyAssignedProductIdentifier3 : 00769053010502 FinishType : Polished GpsrSafetyAttestation : 1 IncludedComponents : 1 IncludedComponents1 : Knob IncludedComponents2 : Screw IsValueStoresItem : 1 ItemName : HARFINGTON 20pcs Knurled Clamping Knobs Thumb Screws M4 x 25mm Metric Male Thread 13mm Matte Plastic Head 304 Stainless Steel Stud Hand Threaded Knob Thumbscrew Handle, Black ItemPackageDimensions_Height : 0.59 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : knurled-knobs Manufacturer : HARFINGTON Material : Zinc Plated Carbon Steel Material1 : Stainless Steel Material2 : Plastic MeasurementSystem1 : Imperial MeasurementSystem2 : Metric MetalType : Carbon Steel ModelNumber : hta240810hh000271 NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 20 PartNumber : hta240810hh000271 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.