Grade 8 Hex Cap Screws Available at South Coast Fasteners

South Coast Fasteners, Inc. supplies Grade 8 Hex Cap Screws built for maximum strength in tough, high-load environments. Made from alloy steel and heat-treated for extra toughness, these screws are designed to perform when failure simply isn’t an option. You’ll find them in heavy machinery, structural assemblies, automotive systems, and industrial equipment where strength and reliability are critical. With a hex head for secure installation and consistent torque, Grade 8 screws deliver the durability and performance your toughest jobs require.

Simplify Your Sourcing with South Coast Fasteners Your Partner for Quality and Value

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.

Grade 8 Hex Cap Screws Offered at South Coast Fasteners

Grade 8 HHCS, Plain

Grade 8 hex head cap screws are made from medium carbon alloy steel and heat-treated for maximum tensile strength and hardness. The plain finish provides a clean, uncoated surface ideal for controlled environments or post-processing applications. Commonly used in heavy machinery, construction, and automotive manufacturing where strength and reliability are critical.

Grade 8 HHCS, Zinc Yellow CR+6 Bake

This screw features a yellow CR+6 baked zinc coating that provides superior corrosion protection and a distinctive gold finish. The baked process enhances coating adhesion and hardness, extending service life under demanding conditions. Perfect for use in high-stress mechanical assemblies, heavy-duty equipment, and outdoor environments.

Grade 8 HHCS, Zinc Yellow CR+6 Bake (Import Excl TW)

Manufactured to strict Grade 8 standards, this imported hex cap screw offers premium strength and durability at a competitive price. Its baked yellow CR+6 zinc finish ensures long-lasting corrosion protection and high visibility. Ideal for international manufacturing, assembly, and field service operations.

USA Grade 8 HHCS, Plain

Proudly made in the USA, this plain-finish Grade 8 hex cap screw offers unmatched quality and strength for critical fastening applications. Designed for high-torque environments, it provides consistent performance under heavy mechanical stress. Widely used in structural, automotive, and industrial settings requiring certified domestic fasteners.

USA Grade 8 HHCS, Zinc Yellow CR+3 Bake

This U.S.-manufactured Grade 8 screw features a CR+3 baked zinc coating for enhanced corrosion resistance and smooth installation. The bright yellow finish ensures easy identification in assembly environments. Ideal for demanding applications such as heavy machinery, construction equipment, and performance vehicles.

USA Grade 8 HHCS, Nylon Patch, Zinc Yellow CR+6

Combining a nylon patch locking feature with a durable CR+6 yellow zinc finish, this screw offers both vibration resistance and corrosion protection. The nylon patch provides consistent prevailing torque for secure fastening under dynamic loads. Commonly used in aerospace, automotive, and equipment manufacturing where reliability is essential.

Grade 8 Hex Cap Screws - Material Options

South Coast Fasteners stocks Grade 8 hex cap screws in both inch and metric standards to support high-load, high-stress fastening applications across automotive, structural, and heavy equipment industries. Each material option is selected for its ability to maintain integrity under torque, tension, and vibration in the most demanding conditions.

Grade 8

This American standard hex cap screw is made from medium carbon alloy steel that has been heat treated to achieve high tensile and yield strength. Grade 8 fasteners are widely used in automotive suspension systems, heavy-duty machinery, and structural frameworks where safety and load capacity are critical. They are easily identifiable by their six radial lines and are engineered to hold up under repeated load cycles without deformation.

Grade 8 Hex Cap Screws - Available Finishes

South Coast Fasteners offers Grade 8 hex cap screws in a selection of finishes tailored for corrosion protection, surface hardness, and application-specific appearance.

Green Zinc Bake

This vibrant green zinc finish is baked on to enhance corrosion resistance while offering a clean, easily identifiable look. Often specified in military, agricultural, or OEM assemblies for quick visual identification and moderate weather resistance.

Plain

Uncoated steel with no added plating or surface treatment. Ideal for dry environments, internal assemblies, or cases where the fastener will be painted or coated post-installation. Offers full metal-to-metal contact and minimal dimensional interference.

Yellow Zinc Bake Cr+6

A hexavalent chromium finish that provides a bright, yellow-gold appearance along with superior corrosion resistance. Baked post-plating to relieve hydrogen embrittlement, this finish is commonly used in automotive, construction, and high-strength industrial applications where both durability and visual inspection are important.

Why Choose South Coast Fasteners?

At South Coast Fasteners, we know that when it comes to critical builds, you can’t settle for anything less than strong and reliable. That’s why we stock dependable, spec-compliant Grade 8 Hex Cap Screws with fast availability, solid quality, and hands-on industry experience to back them up.

Shop Grade 8 Hex Cap Screws Online at South Coast Fasteners

Finding and ordering Grade 8 Hex Cap Screws for your toughest jobs is simple with South Coast Fasteners. Browse our full inventory online and order confidently. Need help with specs, finishes, or bulk orders? We’re here to provide the strength and service you need when it matters most.