ASME/ANSI B18.21.1 Standard Helical Stainless Steel Spring-Lock Washers Supplier In China
Ningbo Teng Qi Fasteners Co., Ltd. is a reliable supplier of DIN7349 Stainless Steel Heavy Clamping Sleeves Washers, we focus on providing high-quality fastening solutions for applications that require enhanced load distribution and long-term stability. With professional manufacturing experience in stainless steel fasteners, we carefully control every production stage, from raw material selection and forming to dimensional inspection and surface finishing. Our DIN7349 washers are produced with accurate dimensions, consistent thickness, and excellent mechanical performance to ensure reliable clamping results in demanding working conditions.
Unlike ordinary washer suppliers, we understand that heavy clamping applications require more than just standard dimensions. We offer customized solutions based on customers’ specific requirements, including different stainless steel grades, sizes, surface treatments, and packaging options. Supported by strict quality control procedures and export experience, our DIN7349 Stainless Steel Heavy Clamping Sleeves Washers provide excellent corrosion resistance, stable performance, and dependable service life for industries such as machinery manufacturing, construction, automation equipment, and industrial assembly.
Specification:
DIN7349 Stainless Steel Heavy Clamping Sleeves Washers are manufactured according to the DIN7349 standard and are designed for heavy-duty fastening applications requiring high load-bearing capacity and reliable clamping performance. These washers feature a larger outer diameter and greater thickness compared with standard flat washers, providing an increased contact area to distribute loads more evenly and prevent damage to connected components. They are commonly available in stainless steel grades such as AISI 304 and AISI 316, offering excellent corrosion resistance and durability in demanding environments.
| Product name | DIN7349 Stainless Steel Heavy Clamping Sleeves Washers |
|---|---|
| Inner Diamter: | Φ3-Φ30 |
| Material: | SS304 SS316 |
| Surface Treatment | Bright Pickling |
| Packaging: | Boxes/cartons into wooden pallets |
Dimension Chart of ASME/ANSI B18.21.1 Standard Helical Stainless Steel Spring-Lock Washers:
The dimension chart of DIN7349 Stainless Steel Heavy Clamping Sleeves Washers provides detailed information about the key specifications, including inner diameter, outer diameter, thickness, and suitable bolt sizes. These washers are designed with a larger outer diameter and increased thickness compared with standard washers, providing a stronger bearing surface and improved load distribution for heavy-duty fastening applications.
| Mon | Φ3 | Φ4 | Φ5 | Φ6 | Φ8 | Φ10 | Φ12 | Φ14 | Φ16 | Φ18 | Φ20 | Φ22 | Φ24 | Φ27 | Φ30 |
| d min | 3.2 | 4.3 | 5.3 | 6.4 | 8.4 | 10.5 | 13 | 15 | 17 | 19 | 21 | 23 | 25 | 28 | 31 |
| dc | 9 | 12 | 15 | 17 | 21 | 25 | 30 | 36 | 40 | 44 | 44 | 50 | 50 | 60 | 68 |
| h | 1 | 1.6 | 2 | 3 | 4 | 4 | 6 | 6 | 6 | 8 | 8 | 8 | 10 | 10 | 10 |
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Application of DIN7349 Stainless Steel Heavy Clamping Sleeves Washers:
DIN7349 Stainless Steel Heavy Clamping Sleeves Washers are designed for applications where standard flat washers cannot provide sufficient support. With their increased thickness, larger contact area, and excellent corrosion resistance, they help improve the safety and reliability of bolted connections in various industrial environments.
| Application | Details |
|---|---|
| Construction and Steel Structures | DIN7349 Stainless Steel Heavy Clamping Sleeves Washers are widely used in construction projects and steel structure assemblies where strong and stable bolted connections are required. Their increased thickness and larger bearing surface help distribute clamping forces evenly, reducing the risk of deformation and improving the durability of structural connections. |
| Mechanical Equipment Manufacturing | In heavy machinery, industrial equipment, and production lines, these washers are used together with bolts and clamping sleeves to enhance fastening reliability. They help maintain consistent preload and prevent loosening caused by vibration, making them suitable for equipment requiring long-term operation stability. |
| Automotive and Transportation Industry | Stainless Steel Heavy Clamping Sleeves Washers are applied in automotive components, railway equipment, and transportation systems where corrosion resistance and secure fastening are important. They provide additional support for bolted joints exposed to vibration, impact, and changing environmental conditions. |
| Automation and Industrial Equipment | In automation systems, robotic equipment, and precision machinery, DIN7349 washers help improve the stability of assembled components. Their accurate dimensions ensure proper fitting with fastening parts, supporting reliable operation and reducing maintenance requirements. |
| Marine and Outdoor Applications | Due to the corrosion resistance of stainless steel materials, DIN7349 Heavy Clamping Sleeves Washers are suitable for marine equipment, outdoor structures, and installations exposed to moisture or harsh weather conditions. Stainless steel grades such as AISI 304 and AISI 316 provide excellent resistance against rust and environmental corrosion. |
| Energy and Infrastructure Projects | These washers are also used in energy facilities, power equipment, and infrastructure projects where fastening systems must withstand high loads and demanding operating environments. Their heavy-duty design improves connection strength and contributes to longer service life of assemblies. |