S-92148A281 31.7 mm ID x 48.2 mm OD DIN 127B Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance due to the split lock design, preventing fastener loosening in high-stress environments.
• Excellent corrosion resistance from 18-8 stainless steel material, ensuring long-term durability in harsh industrial conditions.
• Precise dimensional fit with 31.7mm inner diameter and 48.2mm outer diameter, providing reliable seating for M30 screws.
• Consistent performance backed by DIN 127B standard compliance, guaranteeing interchangeability and quality.
• Enhanced safety and reliability with controlled thickness (5.8-6.2mm), maintaining uniform spring action under load.
• Environmental compliance with RoHS 3 and REACH, making it safe for use in regulated industries.
• Cost-effective maintenance by reducing the need for frequent retightening, lowering overall operational downtime.

Professional Applications & Engineering Value

This M30 split lock washer is engineered to address critical challenges in industrial applications where vibration and dynamic loads compromise fastener integrity. Made from 18-8 stainless steel, it offers inherent resistance to rust and corrosion, ideal for machinery, automotive assemblies, and outdoor equipment exposed to moisture or chemicals. The split lock design creates a continuous spring force that counters rotational loosening, ensuring secure bolted joints in high-vibration environments like motors, conveyors, and structural frameworks. Compliance with DIN 127B ensures precise metric dimensions and reliable performance, while the robust material and standard type construction provide long service life, reducing replacement frequency and enhancing vibration resistance in demanding engineering projects.

Specification Summary & Compliance

This washer adheres to DIN 127B specifications, with an inner diameter of 31.7 mm, outer diameter of 48.2 mm, and thickness ranging from 5.8 to 6.2 mm, designed for M30 screw size. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use. The 18-8 stainless steel material provides consistent hardness and durability, though it is not rated for specific hardness levels, focusing instead on functional reliability in metric fastening systems.