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Flat Washer
Flat Washer

Spring Washer

Spring Washers are locking washers designed to apply spring force and prevent loosening of fasteners under vibration and load. They are manufactured in split, conical, heavy-duty, and wave designs for different applications. Produced to ASTM and DIN standards, they are available in multiple materials, hardness levels, and protective coatings. Their spring action ensures continuous tension in the joint, improving reliability in dynamic conditions. They are widely used in machinery, automotive, railways, structural assemblies, and electrical equipment.

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Description

Premium Quality Spring Washer Supplier in Dubai, UAE

Unifastener Industries LLC is a reliable supplier and manufacturer of premium-quality Spring Washers in Dubai, UAE. The company specializes in industrial fastening and locking solutions designed for machinery assembly, construction projects, engineering works, automotive systems, and heavy-duty industrial applications. Spring Washers, also known as Lock Washers or Split Washers, are specially designed fastening components used to prevent nuts and bolts from loosening due to vibration, movement, and dynamic loads. These washers provide spring tension, secure grip performance, and reliable fastening stability for critical industrial applications. Manufactured using high-grade materials and advanced production standards, Spring Washers provide excellent strength, elasticity, corrosion resistance, and dependable long-lasting performance in demanding environments.


Standards:
– ASTM B18.21.1 (spring lock washers)
– ASTM F436 (reference for hardened washers)
– DIN 127 (spring lock washers, split type)
– DIN 7980 (spring washers for heavy-duty applications)
– ISO 8752 (related reference for retaining and spring-type washers)

Grades:
– ASTM Grades: A36, F436
– DIN / ISO Grades: 4.6, 5.6, 8.8 (washer compatibility with bolt grades)

Material Options:
– Carbon steel (hardened and tempered)
– Spring steel
– Stainless steel (A2 / A4 grades)
– Alloy steel (for heavy-duty applications)
– Phosphor bronze (special applications)

Diameter Range: M3 to M36 (metric) / 1/8″ to 1-1/2″ (inch)

Thickness Range: 1mm to 6mm depending on size

Types:
– Split lock washer (DIN 127)
– Heavy spring washer (DIN 7980)
– Conical spring washer (DIN 6796 — reference type)
– Wave spring washer (ISO 8854)

Properties:
– Provides locking action by exerting spring force
– Prevents nuts and bolts from loosening under vibration
– Distributes load and maintains tension in bolted joints

Coating Options:
– Plain (self-color, oiled)
– Zinc electroplated
– Hot-dip galvanized (ASTM A153 / DIN EN ISO 1461)
– Black oxide
– Phosphated & oiled

Add-ons:
– Can be supplied with bolt/nut assemblies
– Available with certification (MTC, torque test reports)
– Bulk or retail packaging

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