Metric Hexagonal Bolt Full Thread Yellow Zinc M20 * 2.5 * 50mm Grade 10.9

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Choose these Class 10.9 steel screws for high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-stre ngth steel screws. Dimensions meet ISO (formerly DIN) specifications. Length is measured from under the head. The bolts have a thread of M20 * 2.5 and a length of 50mm. Yellow Zinc-plated steel screws should be used in dry, noncorrosive environments. Match the thread spacing of mating components. Coarse threads are the industry standard: choose these screws if you don’t know the pitch. Show more