China Lock Washer Manufacturers Suppliers Factory - Customized Lock Washer Wholesale

Your Leading OEM lock washer manufacturers

Huizhou ZeYao Hardware Products Co., Ltd., located in Huizhou, Guangdong, is a professional fastener manufacturer with 19 years of production experience.

The company boasts a modern factory of over 3,000 square meters and more than 160 production machines, with a monthly output exceeding ten million pieces. All products undergo strict quality control according to ISO9001 standards, ensuring dimensional accuracy, reliable strength, and consistent surface treatment. Our products include screws, bolts, nuts, washers, pins, supports, rivets, and CNC machined parts, all compliant with RoHS environmental requirements. We offer customized OEM services, including size, material, and packaging solutions, ensuring on-time delivery.

3000㎡+

FLOOR SPACE

160+

MACHINERY EQUIPMENT

19+

Production experience

Rich Experience

Established in 2006, Huizhou Zeyao Hardware Products Co., Ltd. has accumulated over 18 years of expertise in manufacturing high-quality fasteners.

Quality Control

All our products comply with ROHS standards, and we maintain a stringent quality control system throughout the entire production process to ensure superior product quality.

Customized Services

We offer tailored solutions based on customer requirements, providing customized production according to specific drawings or samples.

Advanced Production Technology

Our production capabilities encompass cold forming, automatic lathing, automatic milling, and CNC machining, enabling us to meet diverse customer needs efficiently.

External Tooth Washer
Material: Carbon steel
Size: Customizable
Surface Treatment: Galvanizing, Nickel plating, Blackening, Dacromet coating, Electrophoresis, Hot-dip galvanizing, etc.
Manufacturer:...
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Internal and External Tooth Washer
The internal and external tooth washer is a special type of washer， which is designed with inner and outer teeth. This design increases the friction between the washer and the connected...
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DIN25201 Wedge Lock Washer
The DIN25201 wedge lock washer features a unique embedded design with a wedge angle, which increases the tension on the bolt to prevent loosening. When exposed to vibration, the washer’s angled...
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Rubber Bonded Metal Washers
The rubber bonded metal washers combine the durability of metal with the flexibility of rubber, making them ideal for a wide range of applications. The metal layer can withstand high temperatures...
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Specification

Applicable Thread	D Min. - Max.	D Min. - Max.	S Min. - Max.	H Min. - Max.	Internal Tooth Number	External Tooth Number	Steel 1000 pcs./Weight (kg)
M3.0	3.10 - 3.50	13.80 - 14.20	0.28 - 0.32	1.20 - 1.90	6	14	0.95
M4.0	4.20 - 4.38	15.17 - 15.60	0.77 - 0.83	2.00 - 2.80	7	16	1.1
M5.0	5.10 - 5.28	17.47 - 17.90	0.77 - 0.83	2.00 - 2.80	7	16	1.45
M6.0	6.10 - 6.32	17.70 - 18.20	0.87 - 0.93	2.25 - 3.15	8	16	1.53
M8.0	8.20 - 8.42	21.73 - 22.25	0.96 - 1.04	2.50 - 3.50	10	16	2.49
M10.0	10.20 - 10.47	25.58 - 26.10	1.06 - 1.14	2.60 - 3.85	12	18	4.15
M12.0	12.50 - 12.77	29.78 - 30.30	1.16 - 1.24	3.00 - 4.20	12	18	5.4
M16.0	16.30 - 16.73	35.48 - 36.10	1.36 - 1.44	3.50 - 4.90	12	20	8.7

Types of Lock Washer

The lock washers produced by our company mainly include the following types:

Open-end (spring) locking washers

When tightened, the open end of the ring closes, acting like a spring to maintain constant pressure and friction on the fastener, preventing it from loosening.

Toothed locking washers

When the fastener is tightened, the teeth engage with the surface, generating strong friction to prevent rotation.

Disc spring (Bellville) washers

These are tapered washers used in heavy-duty machinery applications with high stress and high vibration to maintain strong clamping force.

Applications of Lock Washer

Applications in Vibrating Environments
In vibrating environments, lock washers are essential to keep fasteners secure. These washers, such as split lock washers and tooth lock washers, provide the necessary tension and grip.

Temperature Variations
Lock washers play a crucial role in environments with significant temperature changes. They help maintain tension and prevent fasteners from loosening due to thermal expansion and contraction.

Heavy Machinery and Critical Safety Applications
In heavy machinery and critical safety applications, the reliability of fasteners is paramount. Robust solutions like wedge lock washers and ribbed lock washers are extensively used to ensure fasteners remain in place under substantial loads and stresses.

Outdoor and Exposed Environments
For outdoor structures and equipment exposed to extreme weather conditions, lock washers are essential. They help maintain the security of fasteners against wind, rain, and temperature fluctuations.

Repeated Disassembly and Reassembly

Lock washers are beneficial in applications requiring frequent disassembly and reassembly, ensuring connections remain secure and stable. These washers, like tab-lock washers.

ransportation Applications

In the automotive and aircraft industries, lock washers secure fasteners under vibration and dynamic loads.

High-Torque Applications

In high-torque environments, lock washers help maintain proper torque and prevent loosening. These washers, such as ribbed lock washers.

Materials Used in Lock Washers

Steel

Steel is one of the most common materials used for lock washers due to its strength and durability. Often zinc-plated to enhance corrosion resistance, steel lock washers are ideal for general applications in machinery and construction, where their strength ensures the stability of heavy structures.

Stainless Steel

Stainless steel lock washers are known for their excellent corrosion resistance and come in various grades to suit different needs. These washers are particularly useful in environments exposed to moisture, chemicals, or extreme temperatures, such as marine or chemical processing industries.

Spring Steel

Spring steel is valued for its ability to maintain tension and resilience under stress. This makes spring steel lock washers ideal for applications that require maintaining tightness and resistance to deformation over long periods, such as in automotive suspensions. They offer excellent fatigue resistance and flexibility but can be more costly and require precise manufacturing processes.

Non-Metallic Materials

Non-metallic materials like rubber and nylon are used for specialized applications. These materials offer unique properties such as flexibility, sealing capabilities, and electrical insulation. For instance, nylon lock washers are often used in electrical applications due to their non-conductive nature.

Precautions for Using Lock Washers

Choose the appropriate type of lock washer for your application. Split lock washers, toothed lock washers, and serrated lock washers are all common types.

Always adhere to the manufacturer’s recommended torque specifications to avoid over-tightening, which can damage the lock washer or threads.

Use additional locking mechanisms, such as nylon-insert lock nuts or thread-locking adhesives, in conjunction with lock washers for greater security in critical or high-vibration situations.

Our Certificate

productcate-1-1

How to Partner with Us?

Partnering with Huizhou ZeYao Hardware Products Co., Ltd. is simple and efficient. We are a professional lock washer manufacturer with 19 years of experience, providing high-quality products and flexible OEM solutions to global B2B clients. Here's how to work with us:

Submit an Inquiry

Submit your requirements via email, online form, or instant messaging, including:

Lock washer type (spring lock washer, open lock washer, toothed lock washer, etc.)

Material requirements (stainless steel, carbon steel, galvanized, etc.)

Size and quantity

Special requirements (OEM labeling, packaging, surface treatment)

Our sales team will reply within 24 hours with a professional quote and production advice.

Technical Communication and Sample Confirmation

Upon receiving your inquiry, our technical team can provide:

Recommend suitable locking washer types and materials based on your application scenario

Custom design support for non-standard sizes

Sample production for quality, size, and surface finish confirmation

Order Confirmation and Production

After sample confirmation, you can place your order. Our factory covers over 3,000 square meters and is equipped with more than 160 production machines, enabling us to:

Large-scale, high-precision production

Strict quality control according to ISO9001 system

Products comply with RoHS and international standards

Packaging and Logistics

We offer various packaging solutions to protect your products during transport and can meet OEM requirements:

OEM branding and private label packaging

Industrial batch packaging

Global logistics support

Our logistics team ensures safe and timely delivery for both small and large orders.

After-sales Service

Customer satisfaction is our top priority. We provide:

Installation and usage technical support

Fast handling of quality or shipping issues

Continuous procurement consultation and long-term cooperation suggestions

Choose Huizhou ZeYao Hardware Products Co., Ltd., and you will receive high-quality locking washers, professional service, and a smooth procurement experience.

FAQ

Q: How does a lock washer work?

A: Lock washers work by applying tension to the fastener (bolt or nut) to prevent it from vibrating loose. This tension is created by the washer's design, which often includes a spring-like or toothed structure that engages with the fastener and the surface it's attached to.

Q: How many times can you use a lock washer?

A: Internal and external tooth lock washers cannot typically get reused, as they have teeth that get bent when installed.

Q: What's better, a lock nut or a lock washer?

A: When you need something that can handle the pressure that comes with torquing down a bolt or screw, choose a lock washer. Another time to use a lock washer is when you are working on a project where the bolt will be in an area with a lot of heat or vibration, such as your car.

Q: How tight should a lock washer be?

A: Make sure your washer is tight against the fastener and other surface. To operate correctly, your lock washer must press against both the threaded fastener and the other adjacent surface, creating a tight connection. If the connection isn't tight, press the fastener down until it is.

Q: Where is the best place to put a lock washer?

A: Choose a lock washer that meets the size and torque requirements of your project. Place the lock washer between the nut or bolt head and the part's surface.

Q: Does lock washer orientation matter?

A: Vibration Resistance: Locking washers create tension and friction, making it more challenging for the nut or bolt to loosen under vibrational or dynamic loads. Proper Orientation: Ensure that the locking washer is oriented correctly, with the split or teeth facing the nut or bolt head.

We're professional lock washer manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized lock washer made in China here from our factory.

External Tooth Washer, DIN25201 Wedge Lock Washer, Internal and External Tooth Washer