Twist off Type Tension Control Structual Bolt with Heavy Hex Head and Round Head Configurations ASTM F1852

Ningbo Strong Bolt Trade Co., Ltd is located in Ningbo, China which is international city and with the biggest port in China. Company has been committed to manufacturing & exporting fasteners, which mainly manufacture fasteners such as bolts, screws, nuts, washers, rivets, pins, anchors, chains, self tapping or drilling screws, threaded rod or studs, which are made from both carbon steel, stainless steel, alloy steel, brass, etc. The products are exported to North & South America, Europe, Australia, Russia, Southeast Asia and Middle East with the standard of DIN, ANSI, ASTM, ISO, JIS, BS and customization parts per prints or sample. The size range is from M1 up to M80 and #0 up to 4", max Length 1, 000mm by cold forged, hot forged and lathe machine.

The Surface treatments are available for: Black Oxide, Gray Phosphate, Black Phosphate, Zinc Plated, Yellow Zinc Plated, Black Zinc Plated, Nickel Plated, Chrome Plated, Zinc-Nickel Plated, Hot DIP Galvanized, Mechanical Galvnized, Wax, Dacromet Coating and brass plated, etc. The mechanical performance class/grade of carbon steel are 4.8(4.6, 5.8), 8.8, 10.9, 12.9 according to DIN standard, and GR2, GR5, GR8, B7 according to ANSI standard; Stainless steel 201, 304, 316. Which are applied to connectors of shield tunnel segment (concrete), wind-power screws series, nuclear-power assembling fasteners, steel structure bolts series and other non-standard components for solar power, etc, both of which enjoy great popularity among customers at home and abroad.

Furthermore, We have our own factory and hundreds of cooperative factories, So we can provide very good products and services, better prices. Products cover fastener, auto parts, bearing, motorcycle accessories, plastic products children's toys, various hardware accessories.

Focusing on products quality, our company has enjoyed high reputation in both domestic and overseas markets over the past years. As a forward thinking company, we are striving to improve our knowledge and expertise to enable us to offer the good quality and value-added service to our customer. We are looking forward to cooperating with you and establish long-term business relationship with our partner in future.