Product Name: Hardened Steel Galvanized Locking Spring Cotter Pin Model NO.: M4 Customized: Customized Certification: CE Style: Religious Design: Cross Shape: Irregular Surface Finishing: Zinc Plated Material: Stainless Steel Type: Pin Trademark: huilida Transport Package: Carton or Bulk Specification: DIN11024 Origin: China Product Description R- PINS: This kind of pin, it seems like the ltter R, the steel of it is round. The material of it can be steel or stainless steel.The finishment of it can be zinc plated, black oxide, plain and so on. It can be used for machine, screw, furniture, and so on. We can produce according to your drawings or samples. The standard can be DIN11024.Packing in bulk or carton. According to your request.