Dive More into Automotive Fastening: DIN 6796 Conical Spring Washers: Enhancing Reliability in High-Strength Bolted Joints-Zhejiang Zhongrui Auto Parts Co., Ltd.

In demanding industrial and automotive applications, maintaining consistent clamping force and joint integrity is crucial, especially in high-strength bolted connections subjected to dynamic loads and vibrations. DIN 6796 Conical Spring Washers, also known as Clamping Washers or Spring Steel Washers, are specifically engineered to address these challenges by providing elastic force within the bolted joint.

Unlike traditional flat washers, DIN 6796 washers feature a unique conical shape. When the bolt and nut are tightened, this shape is compressed, generating a significant axial spring force. This force acts to counteract potential loosening mechanisms such as settlement, creep, or vibration, helping to maintain the desired preload in the joint.

How DIN 6796 Washers Work:

These conical spring washers are typically placed under the nut or bolt head. As the fastener is tightened, the washer flattens, and the stored elastic energy provides a reactive force. This mechanism is particularly effective in supporting dynamically loaded screws and bolts, especially those primarily loaded in the axial direction.

The primary role of DIN 6796 washers is to compensate for loss of preload in a bolted joint. While they contribute to joint security, they are not intended as the sole locking mechanism for screws or bolts, which should be properly torqued and potentially secured with additional locking elements in critical applications. Instead, they maintain tension by adjusting to minor changes in the joint assembly, thereby preventing the loss of clamping force that could lead to loosening.

Key Advantages of DIN 6796 Conical Spring Washers:

Maintains Preload: Provides sustained axial force to compensate for settlement and creep in the joint materials.

Supports Vibration Resistance: Helps to maintain clamping force in the presence of vibration, reducing the risk of self-loosening.

Optimized for High-Strength Bolts: Manufactured from high-quality spring steel, specifically designed for use with high-hardness screws and bolts from property classes 8.8 up to 10.9 according to DIN ISO 898-1.

Consistent Clamping Load Coordination: Enhances the overall reliability and predictability of the bolted connection.

Compact Design: Offers significant elastic recovery within a relatively small form factor.

Technical Specifications & Compatibility:

Zhejiang Zhongrui Auto Parts manufactures DIN 6796 conical spring washers to precise standards, ensuring compatibility with corresponding bolt and nut sizes. The table below outlines typical dimensions for various thread sizes:

For Threads	d1 (Inner Diameter)	d2 (Outer Diameter)	s (Thickness)
M3	3.2 mm	7 mm	0.6 mm
M4	4.3 mm	9 mm	1.0 mm
M5	5.3 mm	11 mm	1.2 mm
M6	6.4 mm	14 mm	1.5 mm
M8	8.4 mm	18 mm	2.0 mm
M10	10.5 mm	23 mm	2.5 mm
M12	13.0 mm	29 mm	3.0 mm
M14	15.0 mm	35 mm	3.5 mm
M16	17.0 mm	39 mm	4.0 mm
M18	19.0 mm	42 mm	4.5 mm
M20	21.0 mm	45 mm	5.0 mm
M24	25.0 mm	56 mm	6.0 mm

Our DIN 6796 washers are produced with particular attention to the requirements for use with high-hardness screws and bolts, ensuring optimal performance when maintaining preload in demanding assemblies.

Applications:

DIN 6796 conical spring washers are ideal for use in bolted joints where maintaining consistent preload is critical, particularly in environments experiencing vibration or where settlement/creep of joint materials is a concern. They are commonly found in:

Automotive Assemblies: Engine mounts, exhaust systems, chassis components, and other areas subject to vibration and temperature variations.

Industrial Machinery: Equipment experiencing dynamic loads or requiring long-term joint stability.

Heavy Equipment: Applications where high-strength fasteners are used and preload retention is vital.

Zhejiang Zhongrui Auto Parts: Quality Manufacturing for Reliable Fastening

At Zhejiang Zhongrui Auto Parts, we specialize in the precision manufacturing of high-quality spring steel parts, including DIN 6796 conical spring washers. Our commitment to quality and the use of the latest production technology ensure that our washers meet stringent standards for dimensions, material properties, and performance. We supply fasteners for high demands, adhering to quality controls that provide the reliability and precision expected in critical applications.

By maintaining the high quality and precision of our DIN 6796 washers, we help our customers achieve reliable bolted connections that perform consistently even under challenging conditions.

For inquiries about our DIN 6796 conical spring washers or other fastening solutions, please contact Zhejiang Zhongrui Auto Parts.

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