S-90407A122 25 mm ID x 42 mm OD Spring Lock Washers for Slotted Bearing Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance due to the conical spring design that maintains constant tension under dynamic loads
• Enhanced locking security with the stepped face design that provides a positive grip on M25 fasteners
• Durable steel construction ensures long service life and reliable performance in demanding industrial environments
• Precise metric dimensions (25mm ID, 42mm OD, 1mm thickness) for perfect fit with M25 screw assemblies
• Optimal spring action from the 4mm overall height and conical shape that compensates for loosening due to thermal expansion or settlement
• Secure tab engagement with 6mm width and 2.5mm depth tabs that prevent rotation in assembled applications
• Environmental compliance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

This M25 metric spring lock washer delivers critical vibration damping in heavy machinery, automotive assemblies, and structural steel connections where loosening prevention is paramount. The conical shape creates continuous spring pressure that counters relaxation from thermal cycling and dynamic loads, while the stepped face design provides positive locking against both bearing surfaces. Manufactured from high-quality steel, this spring lock washer maintains its elastic properties through repeated loading cycles, making it ideal for industrial applications requiring reliable long-term fastening security. The precise 25mm internal diameter ensures perfect compatibility with M25 screw sizes in metric fastener systems.

Specification Summary & Compliance

This spring lock washer features metric dimensions with 25mm internal diameter, 42mm outer diameter, and 1mm thickness, designed specifically for M25 screw sizes. The conical shape with stepped face provides effective locking action in accordance with industrial spring washer functionality. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for industrial components. Manufactured to provide reliable spring performance in various industrial applications requiring vibration resistance.