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Your Professional Washer Manufacturer

 

Wuxi Lemar Metal Products Co., Ltd. is a professional fastener system service group integrating scientific research, manufacturing, sales and logistics. It follows the business philosophy of "striving for excellence and adhering to integrity" and has established a good image in the field of fastener manufacturing and sales. It has established long-term cooperative relationships with major well-known logistics brands at home and abroad to ensure that products are delivered to customers at the fastest speed and are well received by users.

 

 
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Why Choose Us
 

Technical team support
Possess full process manufacturing capabilities and experimental research and development capabilities for fasteners. With strong technical strength and 3D marketing network, it has more than 100,000 enterprise-level users and serves 57 industries.

 

Production Equipment
Our company has cold heading machines, thread rolling machines, wire drawing machines, thread rolling machines, tapping machines, vibration plate automatic assembly and other processing and feeding equipment.

 

Sales Market
Lemar Assisting scientific research enterprises,exported to Europe,North America, Africa, Central Asia, Middle East.

 

Washer - Overview

 

 

A washer is a thin plate (typically disk-shaped, but sometimes square) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a bolt or nut. Other uses are as a spacer, spring (Belleville washer, wave washer), wear pad, preload indicating device, locking device, and to reduce vibration (rubber washer).

 

Product Specification
 

We provide the following product specifications：

Model NO.

GB896, DIN6799

Combination Washer Structure

A Type

Combination Washer Packaging

All Inclusive

Spring Washer Type

Standard

Standard

GB896, DIN6799, or According to UR Drawing

Available Material

A2, A4, 18-8, Carbon Steel, Brass, Aluminum, etc

Supplier

Factory Directly

Payment

T/T, L/C

Transport Package

General Export Packing

Specification

1.2~15mm

 

Function Features of Washer
E Clip Retaining Lock Washer
E Clip Retaining Lock Washer
E Clip Retaining Lock Washer
E Clip Retaining Lock Washer

Load Distribution
The primary purpose of most washers is to evenly distribute the load of the threaded fastener with which they are used. Threaded fasteners stress the material in which they are driven. Driving a screw into wood, for example, may cause the wood to crack around the surface. Washers reduce the risk of such damage by evenly distributing the fastener's load across the surface of the material. Not all materials require the use of washers. But for wood and other relatively soft materials, washers are useful to protect against stress-related damage when the threaded fastener is driven into the material.

 

Spacing
Washers can also be used as spacers. Why would you even need a spacer when driving a threaded fastener into an object? If the threaded fastener is longer than the depth of the object, you won't be able to drive it all the way into the object — not without having some of the fastener stick out the back of the object, at least. Driving a 4-inch screw into an object that's 3 inches deep will result in 1 inch of the screw's tip protruding out of the back of the object. A simple solution to this problem is to use washers. Placing washers through the threaded fastener before driving it into the object creates padding so that the fastener doesn't go too deep.

 

Vibration Absorption
Certain types of washers are designed to absorb vibrations. Known as vibration damping or vibration isolating washers, they usually aren't made of metal. Instead, they are made of a softer material like plastic, rubber or urethane. Softer materials such as these are more effective at absorbing vibrations than hard materials, including metal. If a threaded fastener is being used to connect two objects, and one of those objects producing vibrates aggressively, using vibration damping washers can protect the other object from damage.

 

Liquid Protection
Other types of washers prevent the ingress of water and liquids. They are often used in water pipes and connections to create a waterproof seal. Like vibration damping washers, liquid-sealing washers are made of a soft material that's able to press completely against the surface of the object.

 

Shapes of Washers

 
 

Spherical Shape
As their intended purpose, these washers have a precise, parallel plane between the bolt head and the nut face. Spherical washers automatically correct and balance the angular misalignment between the planes while guarding against bolt bending. Examples include fender, slotted, countersunk, and flat washers.

 
 

Square Shape
Compared to round washers, square washers have a higher surface area, which improves torque distribution. They help in corrosion resistance and rotation prevention.

 
 

Shoulder Shape
These washers are also known as insulator washers. They are non-metallic, often made of nylon. Shoulder washes typically come with a long or short barrel. They protect fasteners from moisture and dirt.

 
 

Wave Shape
Usually made from metals, wave washers are often curved in two directions. They function primarily as spacers or cushions; when compressed, they help sustain loads and maintain fastener tension. An example is the wave washer.

 
 

C-Shaped
Designed to slide in and out of position on a bolt without necessarily loosening it, C-washers find use as a retention device on a grooved shaft. They help keep components in place. Examples include the lock and slotted washer.

 

 

 
 
Materials of Washer
01.

Steel

The most commonly used material in washer manufacturing, steel offers exceptional strength and durability. It is well-suited for a wide range of applications, including those in construction and automotive industries. Zinc or chrome coatings are frequently applied to carbon steel washers to enhance their corrosion resistance and extend service life.

02.

Stainless Steel

An alloy of steel containing chromium, stainless steel is known for its enhanced strength, corrosion resistance, and durability. Particularly effective in extreme temperatures and harsh environments, this material is a top choice for industries like food processing, marine, and aerospace.

03.

Brass

Valued for their corrosion resistance and excellent conductivity, brass washers are composed of copper and zinc alloys. They are commonly used in electrical applications where corrosion resistance is essential. Additionally, brass washers offer a distinct aesthetic appeal, making them suitable for decorative purposes as well.

04.

Copper

Known for their ability to create a tight seal when compressed, copper washers excel in sealing applications. They are highly resistant to corrosion, especially in high-temperature environments, making them frequently used in automotive and industrial machinery applications.

 

Customization Process

 

Requirement Discussion

Contact us and provide your design drawings, size specifications, and other technical parameters.

01

Design Proposal

Our professional team will develop a design proposal and provide a quotation based on your requirements.

02

Sample Production

We produce samples according to the design proposal and conduct rigorous testing.

03

Mass Production

Upon your approval, we commence mass production to ensure timely delivery and consistent quality.

04

After-Sales Service

We offer ongoing technical support and service to ensure the long-term stable operation of our products.

05

 

 

Other Services
  • Surface treatment: Plain, Galvanized, Hot Dip Galvanized, Black Oxide, Anodized, etc.
  • Excellent quality control system for fine dimensional accuracy.
  • Various materials are available as per your request
  • Conform to international standard.
  • We had got certificate of ISO9001: 2008, SGS & RoHS.
  • Prompt delivery.
  • Various sizes are available.
  • Material: Stainless Steel 18-8 18-10, Carbon steel Gr4.8 Gr8.8 Gr10.9, Gr12.9, Aluminum, Copper, etc.
  • Packing Stylet: General export packing
  • Can be made with different standards such as ISO, DIN, AS/NZS, GB, ANSI, BS and special standard.
  • Good customer service
  • OEM is available
Butterfly Lock Washer

 

Package & Delivery

 

Package Size: 10.00cm * 10.00cm * 10.00cm
Package Gross Weight: 5.000kg

 

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FAQ

 

Q: What is the definition of a washer?

A: Washers are usually metal or plastic. High-quality bolted joints require hardened steel washers to prevent the loss of pre-load due to brinelling after the torque is applied. Washers are also important for preventing galvanic corrosion, particularly by insulating steel screws from aluminium surfaces.

Q: What are the different washer forms?

A: Form A: Normal diameter, normal thickness.
Form B: Normal diameter, light thickness.
Form C: Large diameter, normal thickness.
Form D: Large diameter, light thickness.
Form E: Normal diameter, normal thickness.
Form F: Large diameter, normal thickness.
Form G: Largest diameter, larger thickness.

Q: What is the difference between Type A and Type B washers?

A: Type A and Type B washers are both flat washers, but they differ primarily in their tolerances. Type A washers have broader tolerances, making them suitable for general use, while Type B washers have tighter tolerances and are available in narrow, regular, and wide outside diameters, offering more precision.

Q: Which is better spring washer or lock washer?

A: Spring washers are better suited for dynamic loads, while lock washers focus on preventing vibration-induced loosening. Material and Coating: Choose washers made from materials compatible with the fastener and the application environment to avoid corrosion. Some washers come with coatings for enhanced protection.

Q: Are you manufacturer or trading company?

A: We are manufacturer.

Q: What's your best delivery time?

A: Within 15-30 days.

Q: What is the quality control of your product?

A:  Follow strictly quality control measures for implementation,

Q: Will your company provide free sample?

A: It depends on which sort of item you want to get. Some can be provided free of charge, however, the client shall assume the shipping fees himself.

Q: Is OEM open to clients?

A: Yes, we can provide both OEM and ODM service.

Q: How can our company be your distribution partner?

A: We welcome you to be our distributor. For further details, please contact us.

Q: What is the payment of sample?

A: T/T and Alipay both acceptable.

Q: What is your sample policy?

A: If we have stock, we can provide samples, but the customer must pay the sample fee and express fee Question.

Q: Have you tested all your goods before shipment?

A: Yes, we will conduct 100% test before delivery, and we will send detailed photos of parts for your approval Question.

We're well-known as one of the leading washer manufacturers and suppliers in China. If you're going to wholesale high quality washer made in China, welcome to get pricelist and free sample from our factory. Also, OEM service is available.

Split Cotter Fastening Pins, DIN 25201 Wedge Lock Washers, bolts

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