Class 10.9 Steel Black Zinc Plated Hex Bolts Class 10.9 Hex Head Screws DIN931 Hex Screws

Class 10.9 Steel Black Zinc Plated Hex Bolts Class 10.9 Hex Head Screws

Products Descriptions

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-strength steel screws. Dimensions meet ISO (formerly DIN) specifications. Length is measured from under the head.

Steel screws should be used in dry, noncorrosive environments. Zinc yellow-chromate plated and zinc-plated steel screws resist corrosion in wet environments. Blue-dyed screws are easy to distinguish. Black ultra-corrosion-resistant-coated steel screws resist chemicals and withstand 1,000 hours of salt spray.

Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the pitch. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance.

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We are professional manufacture factory of screws, bolts, rivets, nuts,bushing and non-standard fastener from China.

Suzhou Runtai Prcision Hardware Co,.Ltd was eastiblished in 2000, located in the Suzhou City. With more than 10 years export experience, our products has been best-selling in Europe, the United States, the Southeast Asia.

We can supply the fastener according to GB, DIN, JIS, ANSI, BS, ISO and other standards, we can also supply fastener according to customer request.With favorable prices,in-time delivery and perfect after-sales service, my company have build longterm business relationship with more than 20 country customers.

Widely praised by my customer.

Quality is the eternal pursuit of my company. In 2011, my company pass the third part quality system certification ISO9001-2008. After one year of successfully delvoping, we passed another third part quality system certification ISO / TS16949.

With advanced production equipment, Modernization detection, testing equipment and instruments, scientific and effective management methods, to provide best quality products and services to customer.