Washers Exporter from India
Flat, spring, lock, Belleville & structural washers — DIN 125/127, ISO 7089/7090, ASTM F436 — M3 to M100 — shipped worldwide from Coimbatore.
TERNS EXIM is a Coimbatore, India-based exporter of flat, spring, and fender washers manufactured to DIN 125, DIN 127, DIN 9021, and ISO 7089 standards. We supply sizes from M5 to M64 in plain, zinc-plated, hot-dip galvanized, and stainless steel (A2/A4) finishes. Minimum order quantity is 10,000 pieces or 700 kg, and every shipment includes Mill Test Certificates with optional SGS, BV, or TUV inspection.
| Specification | Details |
|---|---|
| Washer Types | Flat, Spring, Fender |
| Size Range | M5 to M64 |
| Standards | DIN 125, DIN 127, DIN 9021, ISO 7089 |
| Finishes | Plain, Zinc Plated, Hot-Dip Galvanized, Stainless A2/A4 |
| Material | Carbon steel, spring steel, stainless steel |
| MOQ | 10,000 pieces or 700 kg |
| Certification | Mill Test Certificate; optional SGS / BV / TUV |
| Lead Time | Quote on enquiry |
| HS Code | 7318.22 |
| Washer Type | Standard | Primary Function |
|---|---|---|
| Flat Washer | DIN 125 / ISO 7089 | Distributes load, protects surface |
| Spring Washer | DIN 127 | Prevents loosening under vibration |
| Fender Washer | DIN 9021 | Large OD for oversized or soft-material holes |
Complete Industrial Washer Range for Global Export — DIN, ISO & ASTM Standards
TERNS EXIM exports a comprehensive range of industrial washers from Coimbatore, India to buyers across the USA, UAE, Europe, and Southeast Asia. Our washer range covers flat washers (DIN 125 / ISO 7089), spring washers (DIN 127), lock washers, Belleville disc springs, fender washers, and structural washers (ASTM F436) — all in M3 to M100 sizes in carbon steel, stainless steel 304/316, and copper.
Washers are a critical companion component for bolted assemblies. They distribute clamping load, prevent surface damage, provide vibration resistance, and act as a seating surface for nuts and bolt heads. Every TERNS EXIM washer shipment is supplied with full Mill Test Certificates and complies with the specified DIN, ISO, or ASTM dimensional and material standard.
Key Applications
- Structural steel bolted connections & fabrication
- Pipe flanges, pressure vessels, and heat exchangers
- Automotive, rail, and heavy vehicle assemblies
- Vibration-prone machinery and rotating equipment
- Electrical switchgear, panel boards, and cable management
- HVAC, plumbing, and building services installations
Applicable Standards
Product Variants
Types of Washers We Export
Complete washer range — from standard flat and spring types to high-load Belleville disc springs and oversized fender washers.
Flat Washer
DIN 125 / ISO 7089. Standard plain washer for distributing bolt load and preventing surface damage.
Spring Washer
DIN 127. Split ring design creates spring tension to resist loosening under vibration and dynamic loading.
Lock Washer
DIN 6798. Serrated internal or external teeth bite into the mating surface to prevent nut rotation under vibration.
Belleville Disc Spring
DIN 2093. Conical disc for high-load spring applications, preload maintenance, and thermal expansion compensation.
Fender / Dock Washer
Oversized OD for thin or soft materials. Provides large bearing area to prevent pull-through in timber, GRP, and sheet metal.
Structural / Hardened Washer
ASTM F436. F436 hardened washer for use with structural bolts (ASTM A325 / A490) in steel construction.
Technical Specifications
Washer Specifications at a Glance
All dimensions to DIN, ISO, and ASTM standards. Custom OD, ID, and thickness also available.
| Parameter | Details |
|---|---|
| Applicable Standards | DIN 125-A/B, DIN 127-A/B, DIN 137, DIN 2093, ISO 7089, ISO 7090, ISO 7091, ASTM F436, BS 4320, IS 2016 |
| Types | Flat (plain), Spring (split), Lock (serrated), Belleville (disc spring), Fender (large OD), Dock, Structural (hardened) |
| Size Range | M3 – M100 metric; 3/16" – 4" imperial also available; custom OD/ID on request |
| Thickness | Per DIN/ISO standard; custom thickness 0.5 mm – 20 mm available |
| Materials | Mild Steel (MS), Carbon Steel, SS 304 (A2), SS 316 (A4), Alloy Steel, Brass, Copper, Bronze |
| Surface Finishes | Self-Colour, Zinc Electroplated (Cr3), Hot-Dip Galvanized (HDG), Black Oxide, Phosphate, Dacromet |
| Hardness (Structural) | ASTM F436 hardness C38–C45; Vickers HV300–HV390 for hardened types |
| Certifications | Mill Test Certificate (EN 10204 3.1); dimensional and hardness test reports on request |
| Packaging | Polybags in cartons (25 kg); bulk sacks; kitting with matching bolts and nuts available |
| Lead Time | 5 – 14 working days for standard sizes; 14 – 21 days for custom dimensions |
| MOQ | 10,000 pieces or 700 kg (smaller quantities available for trial orders) |
Materials Available
Material Options
Always match washer material to the bolt and nut material to avoid galvanic corrosion in service.
Carbon Steel (MS)
Standard for most industrial applications. Zinc or HDG coated for outdoor use. Hardened grades for structural bolt assemblies.
Stainless Steel 304
A2. Used with A2 stainless bolts and nuts for corrosion-resistant assemblies in construction and processing industries.
Stainless Steel 316
A4. Marine, chemical, and food-grade environments. Used with A4 bolts to maintain full corrosion resistance of the assembly.
Brass & Copper
Electrical, plumbing, and EMI-shielding applications. Non-magnetic, good electrical conductivity, and corrosion resistance.
Our Product Range
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Buyer FAQ
Frequently Asked Questions — Washers
What is the difference between a flat washer and a spring washer?
A flat washer distributes the clamping load over a wider area, while a spring washer applies tension to resist loosening from vibration.
What is the minimum order quantity for washers?
Our MOQ is 10,000 pieces or 700 kg depending on washer size.
Do you supply stainless steel washers for export?
Yes, we supply washers in carbon steel, spring steel, and stainless steel A2 and A4 grades.
Request a Quote
Get Your Washers Export Quote
Tell us the washer type, material, size range, and order quantity. We respond within 24 hours.
- Flat, Spring, Lock, Belleville washers
- DIN 125/127, ISO 7089, ASTM F436
- M3–M100, zinc or HDG finish