Specification Brand : HARFINGTON BulletPoint1 : Size - Standard metric thread size: M8 (1.25mm Pitch); thread length: 20mm / 0.79"; tee wing head width: 36mm / 1.42"; total length: 37mm / 1.46"; color: black; nut and washer size: M8; knob style: Z/T knobs. Wing stud knob set with 8pcs knobs, 8pcs nuts and 8pcs washers. BulletPoint2 : Material - Threaded studs on the T wing knobs, washers and nuts are made of 304 stainless steel, with excellent corrosion and rust resistance, oxidation resistance and high strength, ensuring durability and stability. Thermoplastic tee head knobs provide durability, a smooth surface and comfortable grip. BulletPoint3 : Features - T wing knobs are easy to grip and turn by hand, providing leverage and comfort, making it easier to tighten or loosen the knob. Tightly-in metal insert are machine-injected at high temperatures to securely connect the parts together, easy to install. Combines screw-type structure and tee wing handle design for convenient operation, enhancing user efficiency. BulletPoint4 : Applications - Metric hand clamping knobs are commonly used in applications that require frequent and quick adjustments or tightening. Widely used in lathes, drill presses, lathes, routing jigs, fixtures, packaging and woodworking machinery, printing equipment. Threads are neat and clear, the force is even and deep, not easy to slip, and there are no burrs. BulletPoint5 : Note - Always tighten the thumbscrew knob 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. Sturdy and durable thumb screws for the ultimate in adjusting and tightening control. Replace the knob if necessary. Color : Black ItemName : HARFINGTON 8pcs Tee Wing Knobs M8 x 20mm Metric 304 Stainless Steel Threaded Stud 36mm Z/T Head Plastic Handles Thumb Screws Hand Clamping Knob Grip Thumbscrew with Nuts Washers, Black ItemPackageDimensions_Height : 1.38 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 8 ItemTypeKeyword : wing-knobs Manufacturer : HARFINGTON Material : 304 Stainless Steel, Thermoplastic PartNumber : hta240823hh000336 ProductDescription : Threaded studs on the T wing knobs, washers and nuts are made of 304 stainless steel, with excellent corrosion and rust resistance, oxidation resistance and high strength, ensuring durability and stability. Thermoplastic tee head knobs provide durability, a smooth surface and comfortable grip. Tee wing knobs are easy to grip and turn by hand, providing leverage and comfort, making it easier to tighten or loosen the knob. Tightly-in metal insert are machine-injected at high temperatures to securely connect the parts together, easy to install. Combines screw-type structure and tee wing handle design for convenient operation, enhancing user efficiency. Metric hand clamping knobs are commonly used in applications that require frequent and quick adjustments or tightening. Widely used in lathes, drill presses, lathes, routing jigs, fixtures, packaging and woodworking machinery, printing equipment. The threads are neat and clear, the force is even and deep, not easy to slip, and there are no burrs. Note: Always tighten the thumbscrew knob 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. Sturdy and durable thumb screws for the ultimate in adjusting and tightening control. Replace the knob if necessary.