Uxcell Knurled Thumb Nuts, 15pcs M4x D12mm x H8mm Brass Knurled Nut with Collar High Head Through Hole Adjusting Nuts

Descriptions: 1. Material: The knurled thumb nut is made of brass, with good conductivity and thermal conductivity, corrosion resistance and wear resistance. 2. Advantages: The head has a knurled design to increase friction, and it is easy to install and remove by hand without any tools. The thread is deep, the tooth pitch is uniform, and the fastening force is good. 3. Application: These knurled thumb nuts are widely used in the machinery industry, furniture fastening, 3D printing parts, etc. Great for items that need quick adjustments. Use them to replace old ones, or just store them for your next install. Specifications: Material: Brass Color: Brass Tone Thread Size: M4 Pitch: 0.7mm Head Size: 12 x 2.8mm / 0.47" x 0.11"(D*H) Small End Size: 8 x 2.5mm / 0.31" x 0.09"(D*H) Total Height: 7mm / 0.28" Package Included: 15pcs x Knurled Thumb Nuts