GB93 A2-70 304 Stainless Steel Spring Split Lock Washer for Bolts and Nuts

GB93 A2-70 304 Stainless Steel Spring Split Lock Washer for Bolts and Nuts

A2-70 grade 304 stainless steel spring split lock washers to GB93 / DIN127 standard. The split and helical spring design bites into both the bolt head and the workpiece surface, providing anti-loosening resistance under vibration and dynamic loads. Corrosion-resistant 304 stainless steel suits electronics, outdoor, and humid environment applications.

Key Specifications

Why Choose GB93 304 SS Spring Lock Washers?

• Spring anti-loosening action — helical split bites into bolt head and workpiece; resists loosening under vibration
• A2-70 304 stainless steel — corrosion-resistant for electronics, outdoor, and humid environments
• GB93 / DIN127 standard — interchangeable with ISO 7980; fits all standard metric bolts
• Wide size range — M2 to M24 covers all standard electronics and mechanical assembly sizes
• Reusable — can be removed and reinstalled without losing spring function

Typical Applications

• Motor and gearbox mounting (anti-loosening under vibration)
• 3D printer frame and motion system assembly (M3/M4/M5)
• Electronics enclosure panel fastening in vibration-prone environments
• Robotics and automation joint fastening
• Automotive and machinery assembly requiring vibration resistance
• General mechanical assembly where bolt loosening is a concern

Compatible With

All standard metric bolts M2–M24. Use with DIN931/DIN933 hex bolts, DIN912 socket head cap screws, and all standard metric fasteners. Typically used together with a flat washer (DIN125) under the lock washer for best results.

FAQ

Q: Should I use a flat washer with a lock washer?
A: Yes. The recommended assembly order is: bolt head → lock washer → flat washer → workpiece. The flat washer protects the workpiece surface; the lock washer provides anti-loosening action between the bolt head and flat washer.

Q: Are spring lock washers effective against vibration loosening?
A: Spring lock washers provide moderate vibration resistance. For high-vibration applications, consider thread-locking adhesive (Loctite) or nylon insert lock nuts (Nylock) in addition to or instead of spring lock washers.

Package Contents

• GB93 A2-70 304 SS spring split lock washers (quantity and size per selected variant)