Top-Rated 8 Washer Manufacturers and Suppliers

For OEMs, sourcing a washer is a bigger decision than it looks. The right part protects product reliability, assembly speed, and total cost. The wrong supplier creates line-down situations, rework, and field failures. Reliable washer manufacturers earn that label through material traceability, engineering support, and supply chain stability. The stakes are real. McKinsey reports that supply chain disruptions lasting a month or longer now hit every 3.7 years, so a resilient parts partner keeps your production running.

The fastener market shows why this category matters. Grand View Research values the global industrial fasteners market at over $92 billion and projects steady growth. Every component counts, including the washer. Procurement and engineering teams want more than a box of parts. They want an engineered, reliable supply chain for everything from standard flat washers to custom wedge-locking systems.

 

1. Component Solutions Group

Component Solutions Group (CSG) is an engineered component supply chain partner that delivers far more than parts. As part of the global Bufab Group, CSG pairs deep engineering expertise with a worldwide sourcing network to supply C-class components, including a full range of standard and custom washers. The model lowers total cost of ownership for OEMs through vendor-managed inventory (VMI), component consolidation, kitting, and dedicated engineering support. Every washer is specified for its exact application. With ISO 9001:2015 and AS9120 B certifications, CSG meets the strict quality and traceability demands of aerospace, medical, and automotive work.

CSG manages the full component lifecycle, from design and material selection to global sourcing and just-in-time delivery. Need millions of standard flat washers, high-performance wedge-locking washers from partners like NORD-LOCK, or a brand-new custom-stamped part? The CSG team brings the technical oversight and logistics to keep your supply predictable. This model prevents stockouts, quality inconsistencies, and the hidden costs of juggling multiple low-volume suppliers.

2. Wrought Washer Mfg., Inc.

Founded in 1887, Wrought Washer ranks among the world’s largest makers of standard and special washers. The Milwaukee, Wisconsin company keeps an inventory of more than 20,000 tool sets, so it produces a wide range of washer sizes and shapes. It works in steel, stainless steel, aluminum, brass, copper, and nickel alloys.

• Best for: OEMs that need a vast catalog of standard and semi-custom flat washers with high-volume capacity.
• Pricing: Quote on request.
• Standout features: A large in-house tool library produces many non-standard sizes without new tooling costs. The focus stays almost entirely on washers, shims, and related stampings.

 

Advantages:

• Long industry history and deep experience.
• Large inventory of standard washers and tooling.
• Broad material capabilities.

 

Disadvantages:

• A component manufacturer, not a full-service supply chain solutions provider.
• Less focus on integrated services like VMI or advanced kitting.

 

3. Boker’s, Inc.

Boker’s has run a metal stamping operation since 1919. The company produces custom stampings but built its name on washers, spacers, and shims. It stocks a large tool library for flat washers and works in more than 2,000 materials, including non-metallics like plastic, nylon, and Teflon.

• Best for: Companies that need washers in non-standard or non-metallic materials, or precision shims and spacers.
• Pricing: Custom quotes based on material, quantity, and complexity.
• Standout features: Wide non-metallic material options and a quality management system certified to ISO 9001:2015. Stamping capabilities support a high degree of customization in shape and form.

 

Advantages:

• Wide range of metallic and non-metallic materials.
• Extensive custom stamping capabilities.
• Short, medium, and long production run capacity.

 

Disadvantages:

• Focus is parts to print, with less emphasis on fastener engineering or supply chain services.
• Rarely the most cost-effective source for high-volume, standard commodity washers.

 

4. Superior Washer & Gasket Corp.

Superior Washer & Gasket Corp. is a family-owned manufacturer with more than 50 years in business. Headquartered in New York with manufacturing in South Carolina, it stocks over a billion washers across 370,000 cataloged sizes. That depth supports fast shipping on standard and specialty parts, including shims, Belleville washers, and fender washers.

• Best for: Buyers who need quick shipment of a wide variety of standard washers from large domestic stock.
• Pricing: Available via their online RFQ form.
• Standout features: One of the largest and most diverse washer inventories in the industry. An extensive tooling library and multiple plants provide production flexibility.

 

Advantages:

• Massive on-hand inventory for immediate shipment.
• Comprehensive catalog across many washer types and materials.
• Made in the USA manufacturing.

 

Disadvantages:

• A component supplier rather than an integrated logistics or engineering partner.
• The website and ordering process run more traditional than digital-first distributors.

 

5. NORD-LOCK Group

The NORD-LOCK Group is not a general washer manufacturer. It specializes in one critical niche: bolt-securing systems. Its flagship wedge-locking washer uses tension instead of friction to hold bolted joints under severe vibration and dynamic loads. Energy, transportation, and heavy equipment buyers rely on it where bolt failure is not an option.

• Best for: Applications where vibration, dynamic loads, and operational safety are primary concerns.
• Pricing: Premium pricing reflects the specialized engineering and performance. Quotes come through authorized distributors.
• Standout features: Proprietary wedge-locking technology that resists loosening. Engineers specify these washers in many high-risk industrial applications.

 

Advantages:

• Proven performance against bolt loosening.
• Deep engineering expertise in bolted connections.
• Global presence and strong safety reputation.

 

Disadvantages:

• Highly specialized; not a source for standard flat, spring, or fender washers.
• Higher per-piece cost than conventional lock washers.

 

6. Shakeproof (ITW)

Shakeproof is a brand within Illinois Tool Works (ITW), a global diversified manufacturer. The brand invented the twisted-tooth lock washer. It builds engineered fastening solutions that resist loosening, create reliable grounding paths, and span oversized holes. The line covers internal tooth, external tooth, and combination lock washers, plus square cone (Square-Kon) washers for high-load applications.

• Best for: Automotive and industrial applications that need proven anti-rotation and locking features.
• Pricing: Sourced through industrial distributors; pricing tracks volume and part number.
• Standout features: The original inventor of the tooth lock washer. Strong application-specific engineering, especially for automotive. Backed by the large, well-resourced ITW family.

 

Advantages:

• Deep expertise in locking and anti-vibration washer technology.
• Strong reputation in automotive and industrial sectors.
• Backed by the resources of a major global corporation.

 

Disadvantages:

• Niche product line built around specific locking functions.
• Works mainly through distribution channels, not directly with all end-users.

 

7. Phoenix Specialty Manufacturing Co.

Phoenix Specialty is a domestic manufacturer focused on custom, precision parts with fast turnaround. It supplies custom shims, washers, and gaskets built to exact specifications. The company delivers parts in as little as two weeks and keeps digital records of every part it has made, which makes reorders simple.

• Best for: OEMs in aerospace, defense, and other high-tech industries that need custom, high-precision washers and shims fast.
• Pricing: Custom quote required; pricing reflects precision and speed.
• Standout features: Rapid production and delivery for custom parts. The company holds AS9100 and ISO 9001 certifications for demanding sectors.

 

Advantages:

• Specialists in rapid prototyping and custom production.
• High-precision manufacturing for tight-tolerance applications.
• Strong quality certifications for aerospace and defense.

 

Disadvantages:

• Not a supplier for standard, commodity washers.
• Custom focus raises costs for non-specialized needs.

 

8. Fastenal

Fastenal is not a washer manufacturer. It is one of the largest industrial distributors in North America, and it offers a different sourcing model: a single source for MRO (Maintenance, Repair, and Operations) and OEM components. Many companies buy washers from Fastenal as part of a broader supply strategy, backed by its VMI programs and local branch network.

• Best for: Companies that want to consolidate fastener and MRO purchases with one supplier, especially those that benefit from on-site inventory management.
• Pricing: Standardized catalog pricing, with contract pricing for large accounts.
• Standout features: Extensive VMI solutions, including industrial vending machines and bin-stocking programs. A massive distribution network gives local access to a wide product range.

 

Advantages:

• One-stop source for a huge variety of industrial products.
• Industry-leading VMI and on-site inventory services.
• Large physical footprint with over 3,000 in-market locations.

 

Disadvantages:

• Limited in-house engineering support for custom part design.
• Less control over the manufacturing source, since it distributes rather than makes parts.
• Rarely the most competitive option for high-volume, single-part sourcing.

 

How to Move From Recurring Failures to Predictable Performance

Selecting the right washer supplier takes more than comparing per-piece prices. Real supply chain performance comes from a partner who lowers your total cost of ownership and removes production risk. As you evaluate washer manufacturers and suppliers, weigh these factors to build a resilient, efficient supply chain.

Prioritize Material Traceability and Certification

Ask where the raw material came from. A strong supplier provides full lot traceability and material certifications. For aerospace, automotive, and medical work, this is non-negotiable. Certifications like ISO 9001:2015 and AS9120 B prove a quality management system that meets these requirements. Skip this step and you risk putting substandard components into your products.

Evaluate Engineering and Application Support

The best suppliers work as an extension of your engineering team. They review your application and recommend the right washer: a flat washer, a spring washer to maintain clamp load, or a wedge-locking system for high-vibration environments. A partner who consolidates parts, designs custom components, and solves fastening challenges delivers value well beyond a transaction.

Analyze the Total Cost of Ownership (TCO)

The sticker price of a washer is a fraction of its true cost. Add the soft costs: managing multiple vendors, a line-down event from a stockout, and the labor to receive and inspect countless small shipments. A partner offering VMI, kitting, and component consolidation simplifies operations, cuts inventory carrying costs, and frees your team for strategic work.

Assess Supply Chain and Logistics Capabilities

Does the supplier run a global sourcing network that absorbs regional disruptions? Does it offer flexible inventory programs tied to your production forecasts? A strong logistical backbone buffers you against market volatility. Look for partners who provide just-in-time delivery, managed inventory, and clear communication for your critical C-class components.

Shift your focus from price-per-part to total supply chain performance and you find a partner who delivers security and predictability, not just washers. Ready to build a more resilient supply chain? The CSG team helps you source, simplify, and secure your C-class components.

Frequently Asked Questions (FAQs)

What is the difference between a flat washer, a spring washer, and a lock washer?

A flat washer spreads the load of a fastener over a wider surface and prevents damage. A spring washer (like a Belleville or wave washer) applies axial load to maintain tension and resist loosening from minor settling. A lock washer (like a split-ring or tooth washer) bites into the fastener and mating surface to prevent loosening from vibration.

When should I use a wedge-locking washer?

Use wedge-locking washers, like those from NORD-LOCK, for critical applications exposed to extreme vibration or dynamic loads. A cam mechanism creates tension that actively stops the bolt from rotating loose, which gives higher security than traditional friction-based lock washers. They are common in energy, rail, and heavy equipment industries.

What does it mean for a supplier to be AS9120 certified?

AS9120 is a quality management standard for distributors in the aerospace industry. Certification means the supplier runs rigorous processes for traceability, counterfeit part prevention, and quality control that meet the demands of aerospace and defense OEMs. It is a critical credential for any supplier providing components to these sectors.

How does Vendor-Managed Inventory (VMI) for washers work?

In a VMI program, your supplier monitors your washer inventory levels and replenishes them automatically. This runs through on-site bins, scanning systems, or industrial vending machines. The result eliminates stockouts, reduces administrative overhead, and keeps a continuous supply of parts at the point of use on your assembly line.

Can a single supplier provide both standard and custom-engineered washers?

Yes. Comprehensive component supply partners manage both. They use global sourcing networks to procure high volumes of standard washers competitively and in-house engineering teams to design and source custom washers for unique applications. This consolidation simplifies procurement and keeps quality and compatibility consistent across all parts.