Industrial Fastener · Washers Series
Spring Lock Washer
DIN 127 split spring washers have an angled cross-section that compresses flat under bolt preload. They are widely used and historically standard, though their effectiveness against vibration loosening is debated in engineering literature.
Product Overview
Spring Lock Washer sourcing essentials
DIN 127 split spring washers have an angled cross-section that compresses flat under bolt preload. They are widely used and historically standard, though their effectiveness against vibration loosening is debated in engineering literature.
DIN 127 A (round cross-section), DIN 127 B (square cross-section, most common)
Spring steel (typical), Stainless 304/316
DIN 127 split spring washers have an angled cross-section that compresses flat under bolt preload. They are widely used and historically standard,...
Inspection records, lot labels, certificate options, and destination-ready packing.
Technical Data
Specification range
Final dimensions, mechanical properties, finish, and packing are confirmed against the RFQ and applicable standard.
| Standard | DIN 127 A (round cross-section), DIN 127 B (square cross-section, most common) |
|---|---|
| Size Range | M3 – M48 |
| Material | Spring steel (typical), Stainless 304/316 |
| Surface Finish | Plain, Zinc plated, Black, Stainless |
Common surface finishes
Select an option to review its sourcing note. Exact coating system, thickness, and corrosion requirement are confirmed with the order.
Quality Control
Checked before consolidation and export
Each order is matched to the specified standard and verified at practical control points before shipment.
RFQ confirmation
Standard, size, grade, pitch, finish, certificates, packing, and destination are locked before production.
Lot verification
Critical dimensions, thread fit, markings, finish appearance, and packing labels are sampled and recorded.
Shipment approval
Photos and required reports are organized before consolidated loading and export documentation.
Buyer Questions
Frequently asked questions
Do spring lock washers actually prevent loosening?
This is genuinely contested. Several engineering studies (notably Junker testing) have shown that split lock washers under heavy vibration provide little better performance than no washer at all. They remain widely specified by tradition. For critical anti-vibration, modern alternatives (nylon insert nuts, wedge-lock washers like Nord-Lock, thread-locking adhesive) are more effective.
Ready to quote Spring Lock Washer?
Send the standard, size, grade, finish, quantity, packing requirement, and destination. Availability and lead time are confirmed with the inquiry.