Lock Washers (Stainless Steel)

South Coast Fasteners, Inc. stocks stainless steel lock washers to deliver lasting vibration resistance and secure fastening in corrosive or high-moisture environments. Whether you're working on marine hardware, electrical assemblies, or machinery that needs dependable lock retention, stainless lock washers offer long-term performance without the worry of rust or seizing.

Get Superior-Quality Fasteners at Competitive Prices

Use the options below to find the fasteners you need in the quantities required for your application. Questions? Contact us today, and our team will gladly assist you in finding the best fastening solutions for your requirements. With South Coast Fasteners, you can count on helpful support, competitive pricing, and top-quality products for all your fastener requirements.

Types of Stainless Lock Washers We Offer

Stainless 18 8 Split Lock Washer

Stainless 18 8 split lock washers provide excellent corrosion resistance and vibration protection. They are commonly used in general construction, automotive, and marine applications where long-term durability is required. Their split design allows them to grip tightly, preventing loosening under stress. Contractors choose them when cost-effective corrosion resistance is necessary in indoor and outdoor projects.

Stainless 18 8 Hi Collar Lock Washer

Hi collar washers in stainless 18 8 are thicker and provide added holding power compared to standard split washers. Their stainless steel composition resists rust, making them ideal for damp or corrosive environments. These washers are often used in structural and heavy-duty fastening applications where vibration resistance is critical. Builders rely on them for dependable performance in demanding conditions.

Stainless 316 Split Lock Washer

Stainless 316 split lock washers are engineered for maximum corrosion resistance, particularly in saltwater and chemically exposed environments. Their split design ensures secure fastening by preventing bolts from loosening under vibration. They are specified for marine, coastal, and industrial applications where long-term strength and reliability are non-negotiable. Installers select them for projects where superior durability is essential.

Stainless 400 Series Internal/External Tooth Lock Washer

These washers combine internal and external teeth for aggressive locking action in fastened joints. Made from 400 series stainless, they offer strength and wear resistance with moderate corrosion protection. They are used in applications requiring secure fastening under high vibration. Contractors choose them when both biting power and stainless properties are needed.

Metric Stainless A2 (18 8) Split Lock Washer DIN 127B

Metric A2 stainless split lock washers provide durability and dependable corrosion resistance in metric assemblies. They comply with DIN 127B standards, ensuring consistent quality and performance. Contractors use them in European and international projects requiring metric fasteners. Their split design offers reliable vibration resistance in construction and industrial applications.

Metric Stainless A4 (316) Split Lock Washer DIN 127B

A4 stainless split lock washers are made from 316 stainless, delivering top-tier corrosion resistance. They meet DIN 127B specifications, making them suitable for critical metric assemblies. These washers are widely used in marine, chemical, and industrial environments where rust protection is essential. Contractors rely on them for high-performance fastening in harsh conditions.

Metric Stainless A2 (18 8) Internal/External Tooth Lock Washer DIN 6797

These A2 stainless tooth washers combine internal and external teeth for maximum locking action. Compliant with DIN 6797 standards, they are designed for secure fastening in metric systems. They are used in assemblies subject to vibration where added grip is necessary. Builders prefer them for their combination of stainless durability and aggressive locking performance.

Metric Stainless A2 (18 8) External Serrated Tooth Lock Washer DIN 6798A

A2 stainless external serrated tooth washers feature aggressive serrations that grip surfaces to resist loosening. They comply with DIN 6798A standards, ensuring consistent manufacturing quality. These washers are used in high-vibration environments where extra locking power is needed. Contractors select them for projects where both stainless protection and strong bite are required.

Metric Stainless A2 (18 8) Hi Collar Lock Washer DIN 7980

Hi collar lock washers in A2 stainless provide added thickness for greater holding power. Manufactured to DIN 7980 standards, they are commonly used in heavy-duty metric assemblies. Their stainless construction ensures corrosion resistance in a wide range of environments. Builders choose them when projects demand durability, compliance, and consistent performance.

Material Options

South Coast Fasteners stocks stainless steel lock washers in grades that provide strength, rust resistance, and performance tailored to different environments.

Stainless Steel 18-8

Stainless 18-8 is the everyday workhorse for stainless lock washers. It delivers dependable strength, reliable rust resistance, and affordability, making it a versatile option across construction, maintenance, and repair projects. Builders and mechanics rely on 18-8 because it balances toughness and value while keeping fasteners secure in both indoor and outdoor conditions.

Stainless Steel 316

Stainless 316 takes corrosion resistance to the next level. Designed to perform in marine, coastal, and chemically aggressive environments, it resists salt, water, and corrosives that would quickly wear down other materials. 316 lock washers are trusted in docks, processing plants, and outdoor structural work where failure simply isn’t an option.

Stainless Steel 400 Series

400 series stainless is harder and more wear-resistant than 18-8 or 316, making it the choice for high-stress or high-heat environments. These washers are used in automotive, aerospace, and industrial machinery where fasteners face constant load or elevated temperatures. The added hardness helps them maintain grip and shape even under punishing conditions.

Why Choose South Coast Fasteners?

South Coast Fasteners supplies stainless steel lock washers that combine trusted materials, dependable quality, and knowledgeable support. We keep the right grades in stock so you can match washers to your project without delay or guesswork. Our team is focused on making it easy for you to get the parts you need, backed by real expertise and consistent service.

Order Stainless Steel Lock Washers Online Today

South Coast Fasteners makes ordering stainless steel lock washers fast and straightforward. Shop our selection online and get quick, accurate shipping, or reach out if you need help choosing the right material or size. With us, you’ll get washers that hold strong and perform the way your project demands.