Belleville Washers M3 200pcs Tapered Spring Cup 18-8 Steel TESILANG

Description

Product Overview

The M3 Belleville washers supplied by TESILANG are engineered to meet the rigorous demands of modern industrial and scientific applications. Each washer is a tapered disc spring cup, precisely formed from 18-8 stainless steel that offers a balance of high tensile strength and excellent corrosion resistance. The 200-piece pack provides a ready supply for large-scale assembly lines, maintenance workshops, and field service technicians who require consistent preload performance across a variety of bolt sizes. The washers feature a beveled pattern that enhances load distribution and reduces the risk of surface damage on mating components. Their compact disc shape allows for easy installation in confined spaces while delivering the same spring force as larger traditional washers. This product conforms to the French standard 304, ensuring compatibility with international specifications and facilitating cross-border procurement.
Designed to meet both ISO 7380 and DIN 6799 specifications, the M3 Belleville washers provide seamless interchangeability with a wide range of fastener families used in Europe, North America, and Asia. The outer diameter of 6 mm and inner bore of 3 mm align with standard metric bolt sizes, while the cup height of 0.8 mm delivers a predictable spring rate that engineers can rely on for precise torque‑to‑preload calculations. Load testing performed in accordance with ASTM F1559 demonstrates a repeatable compression force of 1,200 N at 0.5 mm deflection, confirming the washer’s capability to sustain high cyclic loads without permanent deformation. This level of performance makes the product an ideal choice for applications such as hydraulic cylinder clamps, motor mounts, and structural steel connections where consistent clamping force is critical.
Each batch of washers is meticulously labeled with a unique lot number, production date, and material certification, enabling full traceability throughout the supply chain. The washers are individually wrapped in anti‑static polyethylene sleeves that protect the stainless‑steel surface from scratches and contamination during handling. For bulk orders, TESILANG offers custom packaging options, including bulk cartons with reinforced dividers and printed barcodes for seamless integration into automated inventory systems. This attention to packaging detail not only safeguards product integrity but also simplifies warehouse management, allowing distributors to quickly verify receipt and maintain accurate stock records. Moreover, the company can provide material test reports on request, giving end‑users confidence in the alloy composition and mechanical properties of every shipment.
TESILANG also offers customization services for customers requiring specific dimensions, hardness levels, or surface finishes. By adjusting the heat‑treatment cycle, the hardness can be increased up to 210 HB for applications demanding higher fatigue resistance, while a passivation process can be applied to enhance corrosion resistance in aggressive chemical environments. Custom embossing of the washer face with logos or part numbers is available for branding or traceability purposes, and the company can accommodate special order quantities ranging from a few hundred to several million pieces. These flexible manufacturing capabilities ensure that the Belleville washers can be tailored to meet the exact performance criteria of diverse industries, from aerospace to renewable energy systems.
Looking ahead, the compact M3 Belleville washers are well positioned to support emerging technologies that require precise mechanical compliance, such as smart actuators and modular robotics. Their small footprint allows integration into densely packed assemblies where space constraints preclude larger spring elements. By pairing the washers with embedded strain‑gauge sensors, engineers can create closed‑loop systems that monitor preload in real time, enabling predictive maintenance and reducing downtime. TESILANG is actively researching additive‑manufactured prototypes that combine traditional stainless‑steel performance with customized geometry, opening new possibilities for bespoke fastening solutions tailored to niche applications.
These washers are compatible with a wide range of bolt grades, including ASTM A193 Grade B7 and DIN 931, allowing seamless integration into existing fastening systems without the need for additional adapters or modifications.

Usage

The washers are ideally suited for high‑stress environments such as automotive engine assemblies, heavy‑duty machinery, aerospace fasteners, and precision equipment used in laboratories. The tapered design provides a predictable spring rate, making them perfect for applications that demand precise torque retention, vibration damping, and axial load compensation. Installers can use them in conjunction with standard hex bolts, socket head caps, or any fastener that requires a reliable locking mechanism. Because the washers are made from 18‑8 stainless steel, they perform well in humid, marine, or chemically aggressive settings where ordinary carbon steel washers would corrode quickly. The 200‑piece quantity ensures that users have enough components for repeated maintenance cycles, bulk purchases, or inventory stocking without the need for frequent reordering.
Regular inspection of the installed washers is essential to maintain system reliability, especially in high‑vibration environments such as compressors or rotating machinery. Technicians should verify that the washer retains its original thickness and that no signs of fatigue cracking or surface corrosion are present. If a washer shows any deformation, it should be replaced immediately to prevent loss of preload and potential equipment failure. TESILANG recommends a maintenance schedule that includes torque re‑verification at intervals defined by the operating load and temperature cycles, ensuring that the fastening assembly continues to perform within its design specifications throughout its service life.
In automotive applications, the M3 Belleville washers are frequently employed in engine valve train assemblies, transmission mounts, and brake system components where precise torque retention is vital for safety and performance. Aerospace engineers rely on these washers for wing flap actuation mechanisms and landing gear strut assemblies, benefiting from the stainless‑steel’s resistance to altitude‑induced corrosion and temperature extremes. For renewable energy installations, such as wind turbine gearboxes, the washers help absorb shock loads and maintain alignment of critical shafts, extending the lifespan of costly equipment. Across all sectors, the combination of a compact form factor and robust spring characteristics enables designers to achieve high clamping forces without increasing the overall height of the assembly.
To achieve optimal performance, installers should follow a systematic procedure: first, clean both the bolt head and the washer seat to remove oil, dust, or debris; second, place the washer flat against the mating surface ensuring full contact; third, apply the recommended torque using a calibrated wrench, then re‑check the torque after a short dwell period to account for elastic relaxation. For high‑temperature environments exceeding 200 °C, a higher‑grade stainless‑steel variant may be selected to maintain mechanical properties. Additionally, when using multiple washers in series, the total spring rate is the reciprocal sum of individual rates, a factor that must be considered during design to avoid over‑compression.
Proper torque verification should be performed after the first 100 operating cycles to account for initial settling, ensuring the washer maintains its designed preload throughout the service life.

Why Choose Us

TESILANG has built a reputation for delivering fasteners that combine rigorous quality control with competitive pricing. Every batch of Belleville washers undergoes dimensional inspection, hardness testing, and corrosion resistance verification before it leaves the factory. Our manufacturing process utilizes CNC‑controlled stamping and heat‑treatment cycles that guarantee uniform thickness, consistent spring height, and repeatable load characteristics. In addition, the company offers a dedicated technical support team that can advise on proper washer selection, installation torque values, and troubleshooting for complex assemblies. Customers benefit from a transparent supply chain, fast shipping from our North American distribution center, and a straightforward return policy should any product not meet the specified standards. By choosing TESILANG, buyers gain confidence that their fastening solutions will perform reliably over the entire service life of their equipment.
TESILANG’s commitment to sustainability is reflected in its adherence to ISO 14001 environmental management standards and its participation in the Responsible Steel Initiative, which promotes responsible sourcing and reduced carbon footprints across the steel industry. The company’s manufacturing facilities employ renewable energy sources for a significant portion of their power consumption, and waste heat recovery systems are used to improve overall energy efficiency. Clients benefit from these green practices through lower lifecycle costs and compliance with increasingly stringent environmental regulations. Moreover, TESILANG’s global distribution network ensures rapid delivery to customers in North America, Europe, and Asia, supported by regional warehouses that minimize shipping distances and associated emissions.
TESILANG’s dedicated research and development team continuously evaluates new alloy compositions and heat‑treatment processes to enhance the performance envelope of its Belleville washers. By collaborating with leading universities and industry partners, the company stays at the forefront of material science advancements, enabling the introduction of next‑generation washers with improved fatigue life and higher load capacities. Customers can access technical whitepapers and design guidelines that illustrate best practices for integrating these washers into complex mechanical systems, reducing development time and minimizing the risk of premature failure.
Client feedback consistently highlights TESILANG’s responsive customer service and rapid issue resolution. In a recent survey of industrial purchasers, 92 % rated the company’s technical support as ‘excellent’, citing prompt answers to engineering queries and proactive recommendations for optimizing washer selection. The firm also provides on‑site training sessions for large manufacturers, ensuring that assembly line personnel are fully versed in proper installation techniques and torque specifications. This comprehensive support framework reinforces the reliability of the product and builds long‑term partnerships based on trust and performance.

Key Features

• High‑strength 18‑8 stainless steel resists rust and chemical attack for long‑term durability
• Tapered disc spring design delivers consistent preload and excellent vibration damping
• Beveled pattern spreads load evenly, protecting mating surfaces from wear
• Compact M3 size fits tight spaces while providing the same performance as larger washers
• Comprehensive after‑sales support includes technical guidance and hassle‑free returns

FAQ

What is the difference between a Belleville washer and a regular flat washer?

A Belleville washer is a conical spring washer that provides a controlled amount of spring force when compressed, whereas a flat washer primarily serves as a spacer or load distributor without any spring action.

Can these washers be used with non‑stainless steel bolts?

Yes, the stainless‑steel washers are compatible with bolts made from carbon steel, alloy steel, or other materials, and they will not cause galvanic corrosion in most typical applications.

How do I determine the correct torque setting when using these washers?

The appropriate torque depends on the bolt size, thread pitch, and the desired preload. TESILANG provides torque charts in the product documentation that correlate washer thickness with recommended torque values for common bolt diameters.

Are the washers reusable after removal?

Because they are made from high‑quality stainless steel, the washers can be reused several times if they have not been deformed or damaged during the initial installation.

What warranty does TESILANG offer for these Belleville washers?

TESILANG offers a one‑year limited warranty covering material defects and manufacturing errors, ensuring that customers receive a reliable product backed by professional support.