Reliable Anti-Loosening Performance
The split-ring structure generates continuous axial spring force after tightening, helping maintain bolt preload and reduce loosening caused by vibration and operational movement.
DIN 127B Spring Lock Washers with Square Ends
- Standard:DIN 127B (Type B)
- Material: Stainless Steel
- Size: M2-M100
- Surface Treatment: Plain, Zinc Plated
- Min Order: 5000pcs
- Sample: Free sample (after quote)
- Delivery time: 30 – 45 Days
Product Overview
Product Application
DIN 127 B is a standard rectangular section helical spring washer (split lock washer) designed for metric bolt and nut assemblies. It provides axial spring force to maintain preload and reduce the risk of loosening caused by vibration or dynamic loads.
Manufactured according to DIN 127 requirements, DIN 127 B spring washers are widely used with hex bolts, screws, and nuts in machinery, automotive, industrial equipment, and general fastening applications.
Draw
Specification
DIN 127 B vs DIN 127 A
DIN 127 B
- Standard square-end spring washer
- General industrial application
- Most commonly used version
DIN 127 A
- Features additional tang/prong ends
- Provides stronger biting action into contact surfaces
- Used where additional mechanical locking effect is required
Product Advantages
High Elastic Recovery
Made from spring steel materials with controlled hardness, DIN 127 B maintains its spring effect under repeated compression and loading conditions.
Wide Industrial Compatibility
Designed for use with standard metric fasteners, making it suitable for DIN, ISO, and general industrial fastening systems.
Common Questions
What is DIN 127 B spring washer used for?
DIN 127 B is used to improve bolt joint security by providing spring force that helps maintain tightening pressure and reduce loosening caused by vibration.
Is DIN 127 B reusable?
Generally, spring washers are considered consumable fastening components. After removal, replacement is recommended because the spring force may decrease.
Does DIN 127 B prevent all bolt loosening?
No. DIN 127 B improves resistance against loosening but is not suitable for every high-vibration application. For critical joints, wedge-lock washers or prevailing torque nuts may provide higher locking performance.
Can you provide OEM manufacturing?
Yes. We offer customized dimensions, hardness requirements, coatings, laser marking, packaging, and private-label solutions.
