Semicircular Head Screw Material

The main plastic material of the semi-circular head screw is nylon 66.

PA66 (polyamide 66 = nylon 66) is a crystalline engineering plastic. It is a high toughness material with a low coefficient of friction, wear resistance and excellent self-lubricating properties. It is also very resistant to oil and chemicals, so it is most suitable for use as a mechanical material, but there is also a problem that due to its high hygroscopicity, it must be considered in design. Moisture as a plasticizer reduces the pulling of nylon. Stretch strength, gas permeability and improved ductility, impact strength and energy absorption. The outdoor weatherability of nylon can be improved by adding carbon black during injection molding. At most temperatures up to 85 ° C, nylon products Still working for a long time. The color of the nylon material is translucent grayish white.