Industrial Washers Manufacturer
Ningbo Teng Qi Fasteners Co.,Ltd is a is a professional industrial washers manufacturer and supplier specializing in the production of various metal washers, including flat washers, spring washers, tooth lock washers, wave washers, square washers and customized washers. With advanced stamping and forming equipment, we are capable of manufacturing washers in different sizes, materials and specifications according to international standards such as DIN, ISO, ANSI and customer drawings. Our washers are widely used in automotive, construction, machinery, electrical equipment and other industrial applications.
From raw material selection to finished product inspection, we implement strict quality control throughout the entire manufacturing process. We have mature production capabilities including material preparation, stamping, forming, surface treatment and dimensional inspection to ensure consistent product quality and reliable performance. We supply washers made from stainless steel, carbon steel, aluminum and copper, providing customers with high-quality fastening solutions for various industrial requirements.
Types of Washers
Washers are mechanical components commonly used with bolts, screws and nuts to distribute fastening loads, protect mating surfaces and improve the stability of assembled parts. By increasing the bearing area between the fastener and the workpiece, washers help prevent surface damage, reduce stress concentration and maintain a more secure connection during operation. Different types of washers are designed for specific functions, such as load distribution, vibration resistance, locking performance and sealing requirements.
As an important part of fastening systems, washers are widely used in automotive, construction, machinery, electronics, energy and industrial equipment applications. Depending on the working environment and performance requirements, washers can be manufactured from various materials including stainless steel, carbon steel, aluminum and copper. Common types include flat washers, spring washers, tooth lock washers, wave washers, square washers and customized washers produced according to customer drawings or international standards.
Material option for washers:
We manufacture industrial washers using a wide range of materials to meet different mechanical, environmental, and application requirements. With extensive manufacturing experience, we are capable of producing washers in various materials, dimensions, and specifications according to customer requirements. Each material is carefully selected based on strength, corrosion resistance, temperature resistance, and application environment to ensure reliable performance. From standard stainless steel washers to customized industrial washers, we provide professional manufacturing solutions for different industries worldwide. Our advanced stamping, forming, machining, and inspection equipment ensures consistent quality and compliance with international standards.
Stainless steel screws, including SS304 and SS316, are widely used for applications requiring excellent corrosion resistance and durability. Carbon steel screws are suitable for applications requiring high strength and cost efficiency, while brass and aluminum screws are ideal for applications requiring electrical conductivity, lightweight properties or special performance requirements. We can manufacture standard and custom screws according to customer drawings, samples and technical specifications.
| Material | Main Fertures | Typical Application |
|---|---|---|
| Stainless Steel | Excellent corrosion resistance, high durability, good strength, oxidation resistance, suitable for harsh environments | Marine equipment, food processing machinery, chemical equipment, construction, outdoor structures, automotive applications |
| Carbon Steel | High strength, good mechanical performance, cost-effective, suitable for general industrial use, available with zinc plating, black oxide, Dacromet, or Geomet coating | General machinery, automotive parts, construction projects, industrial equipment, steel structures |
| Brass | Good corrosion resistance, attractive appearance, good machinability, moderate strength | Electrical components, decorative applications, precision equipment, plumbing fittings |
| Aluminum | Lightweight, corrosion resistant, good thermal conductivity, non-magnetic, suitable for weight-sensitive applications | Aerospace equipment, automotive components, electronic devices, electrical applications |
| Alloy Steel | High tensile strength, excellent hardness, superior wear resistance, suitable for heavy-load fastening applications | Heavy machinery, mining equipment, engineering equipment, high-strength bolted connections |
Washers Manufacturing Process:
1. Raw Material Preparation
We select high-quality raw materials such as stainless steel, carbon steel, alloy steel, aluminum, copper, and other materials according to customer requirements. Before production, raw materials are inspected through chemical composition analysis and material verification to ensure they meet international standards and specifications.
2. Stamping and Forming
For standard washers such as flat washers, spring washers, locking washers, and special stamped washers, we use advanced stamping presses and forming equipment for blanking, punching, and shaping processes. This ensures accurate dimensions, consistent quality, and high production efficiency for large-volume orders.
3. Heat Treatment
For high-strength washers requiring improved mechanical properties, heat treatment processes such as hardening and tempering are available. These processes enhance hardness, strength, and wear resistance for demanding applications.
4. Surface Treatment
We provide various surface finishing options to improve corrosion resistance, appearance, and service life, including zinc plating, hot-dip galvanizing, black oxide, Dacromet, Geomet, nickel plating, and other customized coatings.
5. Quality Inspection
Before shipment, all washers undergo strict quality inspections, including dimensional inspection, hardness testing, coating thickness testing, material verification, and appearance inspection. Our quality control system ensures that products meet customer drawings, samples, and international standards.
Quality Control of Washers:
Quality control is an essential part of our washer manufacturing process. As an experienced industrial washers manufacturer, we implement strict inspection procedures from raw material verification to final product inspection. Our quality control system ensures that each washer meets customer drawings, specifications, and international standards, providing reliable performance for different industrial applications.
To guarantee consistent quality, we use advanced inspection equipment and professional testing methods throughout production. Our quality control process includes raw material analysis, dimensional inspection, mechanical property testing, surface coating inspection, and final appearance inspection. These procedures help ensure accurate dimensions, stable performance, and long service life for stainless steel washers, carbon steel washers, and customized industrial washers.
| Inspection Item | QUality Control Method |
|---|---|
| Raw Material Inspection | Optical Emission Spectrometer testing to verify material composition and grade. |
| Dimensional Inspection | Checking outer diameter, inner diameter, thickness, flatness, and other critical dimensions. |
| Hardness Testing | Ensuring washers meet required mechanical properties. |
| Coating Thickness Inspection | Using X-Ray Fluorescence (XRF) coating thickness gauges to verify surface treatment quality. |
| Final Inspection | Appearance, quantity, packaging, and specification verification before shipment. |
Standard of washers we produce
ASME/ANSI American Standard:
F436 Hardened Steel Washers ASME/ANSI B18.21.1 Internal Teeth Lock Washers ASME/ANSI B18.21.1 External Teeth Lock Washers ASME/ANSI B 18.21.1 (USS) Flat Washer ASME/ANSI B 18.21.1 (SAE) Flat Washer ASME/ANSI B18.21.1 Helical Spring-Lock Washer
DIN Germany Standard:
DIN125 Flat Washer DIN127 Spring Lock Washer DIN7349 Stainless Steel Heavy Clamping Sleeves Washer DIN128B Wave Spring Lock Washers DIN9021 Large Washer DIN5406 Rolling Bearings Stainless Steel Lock Washers DIN6319 Spherical TypeC Washers DIN6796 Conical Spring Washers DIN2093 SeriesA Disc Spring Washers DIN25201 Double Fold Self-locking Washer DIN6797A External Teeth Lock Washers Stainless Steel DIN137A Wave Spring Washers Black Oxidation DIN2093 SeriesA Disc Spring Washers Zinc Plated DIN434 Double Grooved Square Taper Washers Stainless Steel DIN137A Wave Spring Washers