Shop Metric All Metal Locknuts Online at South Coast Fasteners

South Coast Fasteners, Inc. supplies metric all metal locknuts manufactured to DIN 980 V, DIN 6927, and DIN EN 1664 standards for strength and reliability in high-vibration environments. Unlike nylon insert nuts, all metal locknuts use deformed threads, serrations, or prevailing torque to resist loosening, allowing them to withstand high heat and chemical exposure.

They are widely used in automotive, construction, and heavy equipment industries where durability is critical. South Coast Fasteners offers metric all metal locknuts in multiple grades and finishes to meet the demands of both structural and mechanical assemblies.

The Best Deals on Durable Metric Screws and Bolts at South Coast Fasteners

Use the options below to order top-quality fasteners in the sizes and specifications you need. Questions about our fastener options? Contact our office in Anaheim, CA today, and our team will be happy to assist you. Whether you need repeat bulk orders or one-off small batch purchases, South Coast Fasteners has you covered for all your industrial fastener supplies.

Types of Metric All Metal Locknuts

Metric Class 8 All Metal Locknut, DIN 980 V, Zinc CR+3 & Wax

These Class 8 locknuts provide consistent strength with prevailing torque locking action. The zinc CR+3 finish adds corrosion resistance, while the wax coating reduces friction for easier installation. They are commonly used in machinery, automotive, and industrial projects requiring vibration resistance.

Metric Class 8 All Metal Locknut, DIN 980 V, Zinc Yellow CR+6 & Wax

Class 8 locknuts with zinc yellow CR+6 coating provide a gold-toned finish along with corrosion protection. The wax treatment ensures smoother tightening and reduced galling. They are frequently selected for automotive and equipment assemblies where performance and visibility are equally important.

Metric Class 10 All Metal Locknut, DIN 980 V, Zinc CR+3 & Wax

Built for higher tensile strength, these Class 10 locknuts deliver maximum reliability under stress. The zinc CR+3 coating protects against corrosion, while the wax improves installation efficiency. They are used in heavy machinery, construction, and transportation industries where strength and vibration resistance are required.

Metric Class 10 All Metal Locknut, DIN 980 V, Zinc Yellow CR+6 & Wax

These Class 10 locknuts combine extreme strength with a zinc yellow CR+6 finish. The gold coating provides corrosion protection and quick identification during assembly. Wax treatment helps prevent seizing during installation, making them ideal for demanding structural and mechanical uses.

Metric Class 10 Hex Flange Top Locknut, DIN 6927/DIN EN 1664, Plain

These plain finish locknuts feature a flange that spreads load evenly across the surface. The prevailing torque design locks securely without nylon inserts, allowing them to withstand high heat. They are widely used in machinery and automotive builds where durability is essential.

Metric Class 10 Hex Flange Metal Top Locknut, DIN 6927/DIN EN 1664, Zinc CR+3

These Class 10 flange locknuts provide strength with a zinc CR+3 finish for corrosion resistance. The flange design eliminates the need for separate washers, streamlining installation. They are chosen for equipment and automotive projects where reliable load distribution is critical.

Metric Class 8 External Tooth K Lock Hex Locknut, Zinc CR+3

These locknuts feature external teeth that bite into the surface for superior grip. The zinc CR+3 coating protects against corrosion while offering a silver finish. They are widely used in mechanical and industrial applications where vibration resistance is needed.

Metric Class 8 Prevailing Torque Hex Flange Locknut, DIN 6927/DIN EN 1664, Zinc CR+3

These nuts combine a hex flange design with prevailing torque locking action for secure fastening. The zinc CR+3 finish provides corrosion protection and a clean look. They are frequently used in automotive and machinery assemblies where safety and stability are priorities.

Metric All Metal Locknuts - Material Options

South Coast Fasteners stocks metric all metal locknuts in Class 8 and Class 10 alloy steel, each chosen for different performance levels.

Class 8 Alloy Steel

Class 8 alloy steel provides balanced strength for general fastening needs. It is commonly used in machinery, automotive, and equipment projects where vibration resistance and economy are important. These nuts offer consistent performance across industries.

Class 10 Alloy Steel

Class 10 alloy steel offers maximum tensile strength and is suited for heavy-duty structural applications. These nuts are chosen for construction, transportation, and industrial equipment projects where safety and durability are critical. They provide unmatched holding power in high-stress environments.

Metric All Metal Locknuts - Available Finishes

South Coast Fasteners offers metric all metal locknuts in a variety of finishes designed to improve corrosion resistance and ease of installation.

Zinc CR+3 & Wax

Zinc CR+3 finish provides strong corrosion resistance and a bright silver surface. The addition of wax reduces installation friction and prevents galling, making assembly smoother. This finish is widely used in automotive, equipment, and machinery applications.

Zinc Yellow CR+6 & Wax

Zinc yellow CR+6 delivers the same corrosion protection as CR+3 with a distinctive gold appearance. The wax treatment ensures reliable tightening while reducing the risk of thread damage. It is favored in automotive, construction, and heavy equipment industries.

Plain Finish

Plain finish highlights the natural strength of alloy steel without additional coatings. These locknuts are used in controlled environments or applications where exposure to moisture is minimal. They provide maximum economy while maintaining structural reliability.

Why Choose South Coast Fasteners?

South Coast Fasteners supplies all metal locknuts that deliver strength, durability, and performance under vibration and stress. With decades of experience, we provide products that meet strict industry standards and expert support to guide customers in choosing the right fastener. Our consistent stock and quick delivery make us a trusted partner across industries.

Shop Metric All Metal Locknuts Online at South Coast Fasteners

Order metric all metal locknuts from South Coast Fasteners with confidence knowing stock is always available. Our simple ordering system makes it easy to select the correct size, grade, and finish. Whether for automotive, construction, or heavy equipment projects, we deliver quickly with dependable support.