Stainless Steel Fasteners Manufacturer | Bolts, Nuts, Screws & Washers
Ningbo Teng Qi Fasteners Co., Ltd is a professional stainless steel bolts, nuts and screws manufacturer in China, specializing in the production of high-quality industrial fasteners for global customers. With more than 20 years of manufacturing experience, we provide reliable fastening solutions for industries including construction, automotive, machinery, equipment manufacturing, and general industrial applications.
Our product range includes stainless steel bolts, nuts, screws, washers, and other custom fasteners manufactured according to international standards or customer drawings and samples. We work with various materials including stainless steel 304, stainless steel 316, carbon steel, aluminum, and copper to meet different application requirements.
Supported by advanced manufacturing equipment and experienced production teams, our processes include wire drawing, cold heading, hot forging, machining, thread rolling, heat treatment, and surface finishing. From raw materials to finished products, we implement strict quality control to ensure accurate dimensions, stable performance, and consistent quality. We are committed to providing professional OEM and custom fastener solutions with competitive prices and reliable service for customers worldwide.
Bolts Manufacturer
We manufacture a wide range of bolts for industrial and engineering applications, including hex bolts, socket head cap bolts, carriage bolts, anchor bolts and custom bolts. Our bolts are available in stainless steel, carbon steel, alloy steel and other materials, produced according to DIN, ISO, ANSI and customer specifications. With strict quality control and precise manufacturing processes, we provide reliable fastening solutions for global customers.
Nuts Manufacturer
Our nuts are designed to provide secure and durable fastening connections for various industries. We supply hex nuts, lock nuts, flange nuts, coupling nuts and customized nuts in stainless steel, carbon steel, alloy steel and other materials. Manufactured with accurate threads and inspected under ISO9001 quality management system, our nuts meet different industrial requirements.
Screws Manufacturer
We produce different types of screws including machine screws, self tapping screws, socket screws and customized screws for industrial applications. Through cold forming, stamping, machining and thread processing, we are able to manufacture screws with various sizes, materials and surface finishes. OEM and special fastener requirements are welcome.
Fastener Manufacturing Equipment
Our factory is equipped with a wide range of advanced fastener manufacturing equipment, enabling us to produce standard and customized fasteners with different materials, sizes and specifications. Our production capabilities include cold heading, hot forging, CNC turning and machining, stamping, thread rolling, thread tapping and other manufacturing processes.
With these advanced production facilities, we are capable of manufacturing various fasteners including bolts, nuts, screws, rivets, pins and customized components. From forming and machining to thread processing, our integrated manufacturing capabilities allow us to provide efficient production solutions while maintaining consistent quality and precision.
Cold Heading Line
CNC Machining
Thread Rolling Equipment
Hot Forging Equipment
Stamping Equipment
Laser Cutting Equipment
Fastener Quality Control System
Quality is one of our top priorities. As an ISO9001 certified fasteners manufacturer, we strictly control every stage of production from raw material inspection to final product inspection. Before production, all incoming materials are tested by advanced spectrometer analysis to verify chemical composition and ensure material reliability.
During manufacturing, we conduct comprehensive inspections on finished fasteners, including dimensional inspection, hardness testing, mechanical performance testing, tensile strength testing and proof load testing. We also inspect surface treatments such as coating thickness for zinc plating, Dacromet coating, nickel plating and hot dip galvanizing to ensure corrosion resistance and consistent quality. Through strict quality control procedures, we provide reliable fastening solutions that meet international standards and customer requirements.
Material Analyse
Tension Strength Test
Coating Thickness Test
Salt Spray Test
Hardness Test
Dimension Test
Our Core Values
We believe that true value is created through professional understanding, honest communication, and responsible action.
Product Link:
BOLTS: DIN933 HEX BOLT / DIN931 HEX BOLT / ISO4017 BOLTS / ISO4014 HEX BOLTS/A325 HEAVY HEX BOLT/A490 HEAVY HEX BOLT/ASME B 18.2.1 HEX BOLT/ AS1252 HEX BOLT/ DIN6914 HEX BOLT
NUTS: DIN934 HEX NUTS / ISO4032 HEX NUTS / A194 HEAVY HEX NUT / A563 HEAVY HEX NUT/DIN6915 HEX NUT
SCREWS: ISO14580/ISO14585/ISO14584/ISO14583/ISO14581/ISO14579/ISO1207/ISO10642/DIN7971/DIN7973/DIN7981/DIN7984/DIN7972/
DIN84/DIN965/DIN963/ISO7380/DIN7991/ANSI B18.6.3 CROSS RECESSED PAN HEAD MACHINE SCREWS/ANSI B18.3 HEXAGON SOCKET HEAD CAP SCREWS/ANSI B18.3F HEX SOCKET COUNTERSUNK HEAD MACHINE SCREW/ANSIB18.3 HEXAGON SOCKET BUTTON HEAD CAP SCREWS/ANSI B18.3 Countersunk Head Torx Screw
THREADED ROD: DIN975 THREADED ROD / A193 B7 THREADED ROD
STUD BOLTS: A193 B7 STUD BOLTS / A193 B8 STUD BOLTS / A193 B8M STUD BOLTS / A193 B16 STUD BOLTS