Chao-ying is established in 1980. Since then, we have insisted on our honesty in trading and high quality. Regarding the urge to continuously innovate, we acquire various precision machines to ensure the enhancement of the quality of our products and the improvement of our techniques. Our specialty is in the manufacturing of high quality bolt and screw, and providing professional consultation according to the customer's needs.
1. Size: M1-M8. 2. Length: 1.5mm~300mm (This item can be made by custom order). 3. Pitch: 1.2~ 8mm. 4. Material: steel, iron, stainless steel, aluminium-alloy, titanium metal.