Plastic self tapping screw Nylon material DIN standad , philips socket , pan head with tapping threads ,long useful life. Plastic self tapping screwNylon material DIN standad , philips socket , pan head with tapping threads ,and PC PP ABS PVC PE ect material available , anti-rust & erode , heat - resisting , and are popular with insulation ,anti-rust appliances ect.Brand name:JC