Shop Metric Flat Washers (Thru Hardened) Online at South Coast Fasteners

South Coast Fasteners, Inc. provides metric flat washers that are thru hardened for maximum strength and reliability in high-stress fastening jobs. Unlike standard flat washers, thru hardened designs are heat treated through the entire material, creating a stronger, more uniform component that resists deformation under extreme torque. South Coast Fasteners makes these washers available to construction crews, industrial fabricators, and maintenance professionals who require dependable load distribution in critical connections. Their durability ensures assemblies hold tight even in demanding environments where failure is not an option.

Save More Without Sacrificing Quality on Metric Fasteners from 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 Flat Washers (Thru Hardened)

USA Metric Flat Washer, ASME B18.22M, Narrow, Thru Hardened, Zinc CR+3

This washer is manufactured to ASME B18.22M standards, offering a narrow profile that reduces unnecessary bulk while still distributing loads effectively. The thru hardened design means the entire washer is heat treated, giving it consistent toughness across its full body. The zinc CR+3 finish adds a layer of protection, making it resistant to moisture and light corrosion in construction and industrial environments. These washers are used in heavy machinery, structural assemblies, and repair projects where both strength and surface protection are essential.

Metric Flat Washers (Thru Hardened) - Material Options

South Coast Fasteners stocks metric flat washers (thru hardened) in the following material grade to meet the needs of demanding applications.

Thru Hardened Medium Carbon Steel

Thru hardened medium carbon steel creates a washer that can withstand higher torque and pressure than standard flat washers. The heat treatment process strengthens the entire washer, preventing cracking or deformation during use. This material is often chosen for heavy equipment, structural connections, and applications where the fastening system must stay secure under repeated load.

Metric Flat Washers (Thru Hardened) - Available Finishes

South Coast Fasteners offers metric flat washers (thru hardened) in the following finish to provide additional performance and protection.

Zinc CR+3

The zinc CR+3 coating provides a bright, clean appearance while protecting the washer against rust and oxidation. It is widely used in construction, machinery maintenance, and industrial assembly where exposure to moisture or wear is expected. This finish extends service life and ensures washers continue performing reliably in both indoor and outdoor conditions.

Why Choose South Coast Fasteners?

South Coast Fasteners focuses on stocking washers that meet strict standards for strength and durability. Customers count on the company for consistent supply, technical knowledge, and fast support when selecting the right hardware. By offering thru hardened metric flat washers with trusted finishes, South Coast Fasteners ensures that contractors, engineers, and maintenance teams always have the right part for demanding jobs.

Shop Metric Flat Washers (Thru Hardened) Online at South Coast Fasteners

South Coast Fasteners keeps thru hardened metric flat washers in stock and ready to ship, making it easy to secure what you need without delays. Ordering online is simple, with quick turnaround and bulk availability for larger projects. Place your order today and rely on South Coast Fasteners to deliver washers that keep your assemblies strong, secure, and built to last.