Complete DIN Washer Range

Six comprehensive DIN standards covering all flat, spring lock, and specialty washer applications for industrial fastening and assembly.

DIN 125A

Flat Washers

Standard flat washers designed to distribute load and prevent surface damage when fastening with bolts, screws, and nuts.

Wide surface area for load distribution
Sizes: M3 to M64
Tri-valent zinc plated finish
Metric DIN standard compliance
RoHS compliant

DIN 125B

Narrow Flat Washers

Narrow profile flat washers for space-constrained applications where standard washers don't fit.

Reduced width for tight spacing
Sizes: M3 to M16
Lower profile than DIN 125A
Ideal for precision assemblies
Superior corrosion protection

DIN 127B

Spring Lock Washers

Split spring washers providing elastic locking force to prevent fastener loosening due to vibration or thermal cycling.

Continuous split design for consistent tension
Sizes: M3 to M36
Prevents fastener rotation under vibration
Tri-valent zinc plating for durability
Perfect for machinery applications

DIN 440

Square Washers

Square profile washers for traditional and legacy applications, providing enhanced bearing surface.

Square geometry for traditional fastening
Larger bearing surface area
Sizes: M5 to M20
Compatible with square nuts
Historical and modern applications

DIN 7498

Countersunk Washers

Conical countersunk washers designed for use with countersunk screws and fasteners to provide flush mounting surfaces.

Conical profile for countersunk fasteners
Sizes: #4 to #16 (US) and M3-M10 (metric)
Flush surface finish when assembled
Ideal for aerospace and trim applications
Precision-manufactured cones

DIN 9021

Large Flat Washers

Extra-large diameter flat washers for applications requiring maximum load distribution over soft or delicate surfaces.

Large bearing diameter for soft materials
Sizes: M4 to M36
Superior load spreading capability
Ideal for wood, plastic, and composite fastening
Tri-valent zinc for maximum durability

Material & Finish Specifications

All our washers are manufactured from premium steel with advanced surface treatment for superior corrosion resistance and durability.

Material Composition

Our washers are manufactured from high-quality mild steel and alloy steel to DIN specifications, ensuring consistent strength and performance across all applications.

Mild steel for standard applications
Alloy steel for high-strength requirements
Strict material testing and verification
Consistency across all batch sizes
Certified supplier documentation
Full traceability from mill to delivery

Tri-Valent Zinc Plating

Advanced tri-valent zinc plating technology provides superior corrosion resistance while being environmentally friendly and RoHS compliant.

Tri-valent chromium-free formulation
Salt spray testing to ASTM B117
Coating thickness: 4-8 micrometers
RoHS 2002/95/EC compliant
REACH regulation compliant
Uniform coverage across all surfaces

Technical Specifications

DIN Standard	Type	Material	Finish	Key Application
DIN 125A	Flat Washer	Mild Steel	Tri-Valent Zinc	General fastening and load distribution
DIN 125B	Narrow Flat	Mild Steel	Tri-Valent Zinc	Space-constrained precision assemblies
DIN 127B	Spring Lock	Alloy Steel	Tri-Valent Zinc	Vibration-resistant fastening
DIN 440	Square Washer	Mild Steel	Tri-Valent Zinc	Traditional and legacy applications
DIN 7498	Countersunk	Mild Steel	Tri-Valent Zinc	Flush-mount fastening applications
DIN 9021	Large Flat	Mild Steel	Tri-Valent Zinc	Soft material and wide load distribution