Conical flat washer

Product Description

Conical washers—also known as disc-shaped washers or tapered washers—are specialized fastening and cushioning components. Produced via a single-step stamping process from sheet metal, they feature a conical, curved geometry with a recessed center and an extended outer rim. When installed between a bolt head or nut and the workpiece surface, the conical shape deforms to generate an elastic preload. This compensates for gaps between contact surfaces, distributes clamping pressure, mitigates loosening caused by operational vibrations, and optimizes the stress distribution on the fastener. These washers are well-suited for applications involving inclined surfaces, countersunk holes, or uneven workpieces. They can be customized in terms of material, thickness, and dimensions to meet specific requirements for industrial assembly and equipment maintenance.

Product Advantages

1. Elastic Preload for Vibration Resistance and Anti-Loosening: The conical structure undergoes elastic deformation under pressure, continuously exerting a restorative preload. This counteracts vibrations and impacts, reduces the risk of bolts and nuts loosening due to rotation, and enhances the reliability of the connection.

2. Compensation for Assembly Surface Irregularities: Designed to adapt to uneven surfaces, counterbores, or inclined mounting positions, it conforms to the contact interface, fills localized gaps, and prevents stress concentrations on the fasteners.

3. Distribution of Clamping Pressure for Workpiece Protection: During tightening, it distributes localized high pressure over a larger surface area, preventing damage or crushing of delicate materials—such as thin-walled components, aluminum, or plastics—that are susceptible to surface deformation.

4. Simple Installation and High Versatility: Easily installed by sliding it onto the bolt shank; no additional machining or components are required. It is compatible with standard bolts and nuts, facilitating convenient replacement and disassembly.

5. Diverse Material Options for Broad Environmental Compatibility: Available in various base materials with a range of surface treatments, these components are suitable for standard indoor conditions, humid environments, and mildly corrosive settings, thereby extending the service life of the entire fastening assembly.

Product Features

• Conical Structure: Formed via integrated stamping, featuring a uniform taper and smooth, distortion-free curved surfaces. It exhibits stable deformation and recovery under pressure, with no risk of brittle fracture or failure.

• Dimensional Precision (Inner/Outer Diameters): The inner diameter is precisely sized to allow for the smooth insertion of a screw or bolt; the outer edge is smooth and free of burrs, ensuring it will not scratch the surface of the workpiece.

• Material Properties: The material is dense and uniform in thickness. Heat-treated versions offer excellent elasticity, resisting permanent deformation even after repeated compression and recovery cycles.

• Surface Finish: The washers are clean and provided in their natural, untreated state.

• Interchangeability: Designed in accordance with industry-standard fastener dimensions, allowing for seamless replacement with other products of the same specification and simplifying the procurement of spare parts.

Product Applications

• Mechanical Equipment: Frames for automated machinery, jigs and fixtures, and transmission components; used for vibration-point compensation and preloading to optimize the stress distribution on bolts.

• Sheet Metal Enclosures and Cabinets: Assembly of thin-gauge sheet metal parts, electrical control enclosures, and instrument housings; prevents thin-walled shells from collapsing under tightening force.

• Construction and Heavy Machinery Components: Connecting equipment parts; compensates for surface irregularities resulting from the manufacturing process and withstands shocks and vibrations during operation.

• New Energy Industry: Photovoltaic (PV) structural components and energy storage system assemblies; used in conjunction with fasteners for countersunk holes or inclined surfaces.

• Hardware, Furniture, and Equipment: Fitness equipment, metal cabinetry, and industrial machinery; used for the installation of countersunk screws on inclined or angled surfaces.

• Maintenance and Retrofitting: Equipment inspection, repair, and modification; addresses assembly gaps in legacy components and improves the locking performance of fasteners.

Product Specifications

Primarily based on metric specifications; support for imperial and non-standard custom dimensions is also available.

•  Compatible thread sizes: M5–M16

• Material options: Copper alloy

•  Surface finish: Natural (untreated)

•  Standards: Compliant with general fastener and stamped part standards; custom outer diameter, inner diameter, thickness, and taper can be manufactured according to provided drawings.

Product Styles

1. Classification by shape: Standard conical flat washers, large-outer-diameter conical washers, and compact (small-outer-diameter) conical washers;

2. Classification by thickness: Thin/light-duty, standard/regular, and thick/heavy-duty (high-load) types;

3. Customized designs: Non-standard conical flat washers featuring specific tapers, non-circular outer shapes, or custom bore diameters.