JIS B1251 Spring Lock Washers
Product: JIS B1251 Spring Lock Washers
Finish:Zinc Plating（Yellow Zinc, Zinc Blue, Rinse Color), Black, Phosphate & Oil, Zinc Phosphate, Hot-dip Galvanized(HDG),Dacromet, Geomet
Material:Steel
Export country: USA, Japan, Australia, Europe and so on
Support customer customization
JIS B1251 is the Japanese industrial standard for spring lock washers. JIS B1251 defines spring lock washers specifications and requirements. Spring lock washers, also known as spring washers or spring washers, are specially designed washers used to provide additional locking force and prevent bolts, screws, or other fasteners from loosening under vibration or shock conditions. JIS B1251 spring washers usually consist of an inner cone surface and an outer cone surface. When they are compressed, they generate a radial force that firmly locks the bolt or screw in the connection. Spring lock washers are widely used in a variety of machinery and equipment, especially in environments that need to withstand vibration, shock, or temperature changes. They can effectively prevent fasteners from loosening and improve the reliability and safety of connections.
Pictures
Product drawing
Product Specification
Size | Φ2 | Φ2.5 | Φ3 | Φ3.5 | Φ4 | Φ4.5 | Φ5 | Φ6 | Φ7 | Φ8 | Φ10 | Φ12 | Φ14 | Φ16 | Φ18 | Φ20 | Φ22 | Φ24 | Φ27 | Φ30 | Φ33 | Φ36 | Φ39 | |
d | max | 2.35 | 2.9 | 3.4 | 3.9 | 4.5 | 5.0 | 5.5 | 6.5 | 7.5 | 8.7 | 10.7 | 12.8 | 14.8 | 17.0 | 19.0 | 21.0 | 23.5 | 25.5 | 28.7 | 31.7 | 34.9 | 37.9 | 40.9 |
min | 2.1 | 2.6 | 3.1 | 3.6 | 4.1 | 4.6 | 5.1 | 6.1 | 7.1 | 8.2 | 10.2 | 12.2 | 14.2 | 16.2 | 18.2 | 20.2 | 22.5 | 24.5 | 27.5 | 30.5 | 33.5 | 36.5 | 39.5 | |
b min | 0.9 | 1 | 1.1 | 1.2 | 1.4 | 1.5 | 1.7 | 2.7 | 2.8 | 3.2 | 3.7 | 4.2 | 4.7 | 5.2 | 5.7 | 6.1 | 6.8 | 7.1 | 7.9 | 8.7 | 9.5 | 10.2 | 10.7 | |
h min | 0.5 | 0.6 | 0.7 | 0.8 | 1.0 | 1.2 | 1.3 | 1.5 | 1.6 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 4.6 | 5.1 | 5.6 | 5.9 | 6.8 | 7.5 | 8.2 | 9.0 | 9.5 | |
H min | 1 | 1.2 | 1.4 | 1.6 | 2.0 | 2.4 | 2.6 | 3.0 | 3.2 | 4.0 | 5.0 | 6.0 | 7.0 | 8.0 | 9.2 | 10.2 | 11.2 | 11.8 | 13.6 | 15.0 | 16.4 | 18.0 | 19.0 | |
dc max | 4.4 | 5.2 | 5.9 | 6.6 | 7.6 | 8.3 | 9.2 | 12.2 | 13.4 | 15.4 | 18.4 | 21.5 | 24.5 | 28.0 | 31.0 | 33.8 | 37.7 | 40.3 | 45.3 | 49.9 | 54.7 | 59.1 | 63.1 | |
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Some introduction about our company
Application
Our products are widely used in mechanical, electrical, automotive, building construction, railways, bridges, steamships, fire protection and communication system, etc.
Workshop
Certification
Through scientific management, Jinan Star Fastener Co., Ltd. has obtained the 2015 version of ISO9001 quality management system certification. In 2017, the laboratory passed the national CNAS certification. In 2018, the company passed the European CE certification.
Testing Equipment
Our company has a specialized laboratory with digital hardness testers, microscopes, universal testing machines, axial force meters, hydrogen embrittlement detection devices, magnetic particle flaw detectors, metallographic analyzers, carbon and sulfur analyzers and salt spray testing machines, etc. Experimental testing equipment is used to conduct comprehensive testing of the chemical composition of raw materials, product hardness, mechanical properties, coating thickness and corrosion resistance to ensure that all products meet standard requirements and satisfy customers.
Production equipment
Our company has more than 300 production equipment.The product production process includes: Annealing, shot blasting, cold heading, thread rolling, heat treatment, galvanizing, finished product testing, packaging, etc. are all completed in the company.
Packing
Service
1. Provide return and exchange services, quality assurance and after-sales technical support for JIS B1251 spring lock washers.
2. Provide technical consultation on JIS B1251 standard spring lock washers.
3. Provide customized spring lock washers according to customers' special needs.
FAQ
1. Does this spring lock washer comply with JIS B1251 standard?
Yes, the spring lock washers we provide are produced in strict accordance with JIS B1251-1 standards to ensure that the quality and performance of the spring lock washers meet the standard requirements.
2. How do I choose the appropriate spring lock washer?
You need to choose the right spring lock washer based on your application needs, connection size, and work environment.
3.What are the advantages of JIS B1251 spring lock washers compared to other types of washers?
Spring lock washers feature a special spring design that provides extra locking force under vibration or shock conditions, effectively preventing fasteners from loosening. They offer greater reliability and safety and are particularly suitable for applications that need to withstand these conditions.
4. If I encounter problems during the use of JIS B1251 spring lock washers, how should I solve them?
Answer: If you encounter any problems during use, you can contact our after-sales service team at any time. We will provide you with timely technical support and solutions to ensure that you can use our products smoothly.
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