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Socket Head Cap Screws
South Coast Fasteners, Inc. supplies socket head cap screws built for strength, reliability, and tight spaces where failure isn't an option. Whether you're on the production line or out in the field, these fasteners are made to take the pressure and perform where it matters most. Featuring a clean, cylindrical head with an internal hex drive, our socket head cap screws provide strong tool engagement and excellent torque transfer. They're easy to install with a standard Allen key and are a go-to choice in heavy machinery, automotive builds, aerospace assemblies, and more.
When space is limited but performance is critical, socket head cap screws get the job done. We stock a wide range of sizes, materials, and finishes so you can find the right fit for your application. No guesswork. No shortcuts.
Order Premium Industrial Fasteners Today
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.
Material Options
South Coast Fasteners stocks fasteners in the following material grades, each chosen for specific performance needs across industries.
Alloy Steel – Grade 12.9
Designed for extreme strength and load-bearing applications, this grade of alloy steel is hardened and tempered for maximum tensile and yield strength. Ideal for heavy machinery, automotive, and high-stress assemblies where reliability under pressure is critical.
Medium Carbon Steel – Grade 8.8
A dependable material for general-purpose fasteners. Medium carbon steel is strong, cost-effective, and easy to machine, making it a go-to choice for standard construction, light manufacturing, and assembly work.
Stainless Steel 18-8 (304)
One of the most commonly used stainless grades, 18-8 stainless provides solid corrosion resistance in a wide range of indoor and outdoor environments. It’s suitable for food processing, general industrial use, and moderate marine applications.
Stainless Steel 316
For harsh environments where corrosion is a serious concern, 316 stainless steel offers superior resistance — especially to saltwater, chemicals, and chlorides. A top choice for marine, medical, and chemical processing applications.
Available Finishes
South Coast Fasteners offers a curated range of finishes designed to enhance corrosion resistance, meet aesthetic requirements, and support specific industry needs.
Mechanical Zinc Cr+3
Applied via a mechanical plating process, this chromium-based zinc finish provides durable corrosion protection without the risk of hydrogen embrittlement. Commonly used for safety-critical assemblies in automotive and construction.
Thermal Black Oxide
This heat-applied finish gives steel a deep black appearance while offering mild corrosion resistance. It’s often selected for its aesthetic appeal and is popular in tooling, automotive, and hardware applications.
Yellow Zinc Cr+6
A bright yellow chromate finish that enhances the corrosion resistance of zinc-plated steel. The gold-tone appearance is both functional and easy to identify, making it useful in electrical and automotive assemblies.
Zinc Bake Cr+3
This zinc finish is paired with a bake cycle that helps mitigate hydrogen embrittlement, particularly on high-strength steel fasteners. It’s a practical option for aerospace, automotive, and structural fasteners.
Zinc Cr+3
Standard zinc plating with trivalent chromium passivation, providing a clean silver appearance and dependable corrosion protection. It’s widely used across general industrial, plumbing, and commercial hardware applications.
Why Choose South Coast Fasteners?
At South Coast Fasteners, we don’t just stock fasteners. We know how they’re used in the real world. Our team understands what works and why, which means we’re focused on helping you get the right parts, the first time. Whether you're ordering a few for a repair or stocking up for a full production run, we're here to make it simple.
Order Socket Head Cap Screws Online Today
Take a look through our online inventory and find exactly what your project needs. Not sure about the specs, materials, or finishes? Contact us for assistance. We'll walk you through it and make sure you get the right fit. Let us help you keep your work moving forward with confidence.