A4-70 Stainless Steel Partially Threaded Hex Head Screws Left-Hand Threaded Hex Bolts

Products Description

These A4-70 stainless steel screws are suitable for fastening machinery and equipment. Tighten them by turning them to the left; once fastened, they prevent counterclockwise-moving parts from loosening.

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.

Metric screws are also known as A2 stainless steel screws.

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

Screws that meet ASME or ISO (formerly DIN) specifications comply with these dimensional standards.

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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.