Rdac Universal Clamps are stamped to exacting dimensional accuracy. Each part is assembled ensuring correct roundness employing a GNG for the specified fitment pipe. Cr+3 Zn plated conforming with EC directive. Fasteners as per DIN EN ISO 4759-1. Fastners used are 8.8 grade and random torque tests and salt spray tests ensure a quality product is delivered to our customers. Customized packing available.