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| Country of Origin | India |
|---|---|
| Brand | RS PRO |
| Material | Stainless Steel |
| Grade | A2 |
| THICKNESS | 0.50mm |
| Model | 187-0585 |
| Finish | Plain |
| External diameter | 20.5mm |
| Inside Diameter | 4.3mm |
| Washer type | Internal Tooth |
| Standards/Approvals | DIN 6797J |
| Compatible Screw/Bolt Size | M4 |
| RS PRO Stainless Steel Washers, DIN 125ABrand | RS PRO |
| RS PRO Steel Bright Zinc Internal Tooth Shakeproof Washer, M4, DIN 6797JBrand | RS PRO |
RS PRO 187-0585 is a precision-engineered internal tooth shakeproof washer manufactured from high-quality A2 grade stainless steel. Its design ensures excellent reliability and corrosion resistance for demanding industrial, mechanical, and laboratory applications. The washer is intended for M4 fasteners, providing a secure, vibration-resistant connection in a wide range of assemblies.
The internal tooth configuration features serrated prongs that lock effectively against bolt or nut heads, minimizing loosening under vibration or dynamic loads. This shakeproof mechanism is critical for maintaining structural integrity and safety in machinery, equipment, and fixtures where stability is paramount.
Measuring 20.5 mm externally and 4.3 mm internally, the washer delivers standardized fitting consistent with DIN 6797J requirements. Its 0.50 mm thickness balances strength and compatibility, allowing it to work seamlessly with M4 screws and bolts throughout manufacturing, assembly, and maintenance processes.
Made from A2 stainless steel - provides excellent corrosion resistance and durability. Internal tooth design ensures reliable locking and shakeproof performance. M4 compatibility allows precise use in industrial fastener systems.
Plain finish supports both functional requirements and low-profile aesthetics. Standardized to DIN 6797J for assured fit and performance. Thickness of 0.50 mm offers robust mechanical stability in assemblies. Suitable for use in factory automation, machine tool assemblies, laboratory equipment, and commercial installations.
Applications include industrial machinery, laboratory equipment, HVAC systems, electronic enclosures, and manufacturing lines where secure fastening and vibration protection are required. Its corrosion-resistant stainless steel construction makes it ideal for environments exposed to moisture, chemicals, or frequent maintenance.
Browse more industrial fasteners and fastening solutions from RS PRO on EnvMart to meet your mechanical and engineering needs.
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