... fastener Screw according to USA and German standard, high quality. Products No.:A27-1449standard fastenerScrew according to USA ... , ADC10, ADC12, ZL104, ZL102 ,LM5 ,LM6. the surface treatment: polishing, dipping paint, power coated, chromate platingthe machining ... reaming and threadingthe processes: CAD services, metal processing, surface plating, QC testing and packaging.the specifications are made ...