Industrial Washers – Precion Load Distribution & Vibration Control
Category: Washers
Types: Flat, Spring, Lock, Toothed, Sealing, Belleville, Wave, Fender, Tab
Standards: DIN 125, DIN 127, DIN 6796, ISO 7089, ASTM F436
Materials: Mild Steel, Stainless Steel (SS304 / SS316), High-Tensile Steel, Brass, Copper, Nylon, PTFE
Grades: A2-70, A4-80, 8.8, 10.9
Coating Options: Zinc, Black Oxide, Dacromet, HDG, Passivated
Product Introduction
SM Fastners offers a comprehensive range of industrial-grade washers engineered for load-bearing, vibration damping, and secure fastening in critical assemblies. Whether used to distribute pressure evenly under a bolt or to prevent loosening in dynamic machinery, our washers are precision-cut, heat-treated, and available in standard and custom sizes.
Our washers comply with global standards and are suitable for applications across automotive, aerospace, electrical, oil & gas, and heavy machinery industries. From tiny M2 stainless washers to large OD high-tensile spring washers, we support your entire design and engineering process with certified quality and export-ready logistics.
Types of Washers We Offer
We offer a wide variety of washer types and sizes in both metric and imperial dimensions:
- Flat Washers (DIN 125, ISO 7089) – Basic load distribution
- Spring Washers (DIN 127) – Absorb vibration and maintain tension
- Lock Washers – Tooth and split types to prevent bolt loosening
- Sealing Washers (Rubber/Metal) – Leak prevention in pipe and flange joints
- Wave & Belleville Washers (DIN 6796) – Compensate thermal expansion, dynamic loads
- Fender Washers – Large OD washers used for sheet metal or soft surfaces
- Tab Washers – With locking tabs to secure fasteners under movement
- Custom Washers – CNC-cut or punched per your drawing/spec
Available in M2 to M100 and imperial equivalents.
Material & Surface Options
We manufacture washers to suit extreme environments — from chemical plants to offshore rigs.
Materials:
- Stainless Steel AISI 304, 316, 410
- High Tensile / Spring Steel
- Mild Steel (CRCA)
- Brass / Copper
- Nylon / PTFE / Fiber
- Hardened Alloy Steel (for heavy load)
Surface Coatings:
- Zinc Plated (White / Yellow / Blue)
- Black Oxide
- Dacromet / Geomet / Xylan
- Hot-Dip Galvanized (HDG)
- Nickel or Chrome Plated
- Passivation for stainless steel
Applications
Washers are integral to static and dynamic fastener systems across multiple industries. They prevent surface damage, ensure even torque distribution, and resist loosening due to movement or pressure changes.
- Automotive & Vehicles – Used in suspension systems, brake assemblies, engine parts, and exhausts.
- Electrical & Electronics – Insulating washers, sealing washers, and anti-vibration pads in switchgear, transformers, and PCB mounting.
- Oil & Gas / Petrochemical – High-pressure washer assemblies used in flanges, pipeline clamps, and valves.
- Aerospace & Defense – Specialty washers used in turbine engines, avionics, and composite structures.
- Infrastructure & Steel Fabrication – Flat, HDG washers used with structural bolts in bridges, buildings, and solar frames.
- General Industrial Machinery – Lock and spring washers in vibrating machines, rotating shafts, and couplings.
Technical Overview
Why Choose SM Fastners?
🧪 In-house stamping, CNC, and heat-treatment lines
📏 Precision OD/ID and thickness control within microns
🔩 Match with our full range of bolts, nuts & rods
🌍 Global export experience with HS codes and certificates
📄 Technical support and drawing-based customization
🏗️ Industrial packing, barcode labeling, and palletized shipping
Packaging & Export
- Inner polybags + master cartons with clear markings
- VCI or oiled bags for rust-sensitive materials
- Palletized, shrink-wrapped cargo ready for export
- Custom branding and part numbers on request
- ISPM-15 treated wooden crates (for sea shipments)
Industries We Serve
🏗️ Construction & Steel Fabrication
🚗 Automotive & Transportation
⚡ Electrical Panels & Cable Management
🛢️ Oil & Gas Processing
✈️ Aerospace & Railways
🧰 General Industrial Machinery
🔬 Medical & Diagnostic Equipment
Documentation Supplied
- Material Test Certificate (EN 10204 3.1)
- Dimensional Report / Tolerance Chart
- Surface Finish Certificate
- Commercial Invoice & Packing List
- HS Code Declaration & Country of Origin
- RoHS / REACH Compliance Certificate
Request a Quotation
Need high-volume industrial washers, drawing-based custom washers, or global logistics support?
📧 Email: susheel@smfastners.com
📞 Phone: +91 8968469570
💬 WhatsApp Chat: Click to Chat
We respond within 24 hours with complete technical and commercial information.