Button Socket Cap

When strength meets style, you get button socket cap screws, fasteners that look good and hold strong. At South Coast Fasteners, Inc., we offer button socket caps that feature a smooth, rounded head paired with the reliable performance of a hex socket drive. They’re a great choice for applications where the hardware is visible and function still matters.

With their low-profile, domed head design, these screws are ideal for equipment panels, furniture, electronics, and interior builds, anywhere you want a clean, finished look without giving up holding power. Easy to install with a standard Allen key, they provide consistent torque, clean lines, and a flush fit that works as well as it looks.

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.

Material Options

South Coast Fasteners stocks button socket cap screws in a variety of materials designed to handle structural, mechanical, and corrosive environments. Each option is carefully selected for strength, longevity, and performance in demanding applications.

Alloy Steel

A strong, reliable choice for structural and mechanical applications. Alloy steel button sockets are heat-treated for enhanced hardness and wear resistance, making them ideal for high-torque or load-bearing uses. They're commonly found in heavy equipment, machinery, and industrial assemblies where strength matters more than corrosion resistance.

Stainless Steel 18-8 (304)

A go-to for general corrosion resistance in most environments. 18-8 stainless offers a balanced blend of strength, formability, and rust protection, making it the most widely used stainless steel in fasteners. It's especially suitable for indoor applications, food processing, and environments where moisture is present but not extreme.

Stainless Steel 316

Offers superior corrosion resistance, ideal for marine and chemical exposure. 316 stainless contains added molybdenum, giving it better performance in saltwater and harsh chemical environments. These fasteners are commonly used in marine hardware, coastal construction, wastewater treatment, and chemical facilities.

Stainless Steel 8-2

Excellent resistance in harsh environments, combining strength and longevity. 8-2 stainless steel offers increased tensile strength and better fatigue resistance compared to 18-8, while still maintaining good corrosion protection. It's ideal for high-stress applications exposed to vibration, moisture, or outdoor elements.

Available Finishes

Each finish provides a unique balance of corrosion protection, appearance, and surface hardness. We’ll help you choose what works best for your application. Finishes available for button socket cap screws include:

Black Oxide

This finish provides a dark, uniform appearance and mild corrosion resistance for indoor environments. It reduces glare and blends well with black or dark-colored materials, making it ideal for aesthetic installations or mild indoor machinery use.

Thermal Black Oxide

An enhanced version of traditional black oxide, thermal black oxide is processed with heat to improve surface hardness and wear resistance. It provides better protection in higher-temperature environments and helps reduce friction in threaded assemblies.

Mechanical Zinc Cr+3

This eco-friendly zinc plating uses trivalent chromium, offering a silver appearance and solid corrosion resistance. It's applied through a mechanical bonding process and is commonly used in commercial, HVAC, and electrical systems where clean looks and protection are important.

Zinc Bake Cr+3

Zinc Bake Cr+3 is a trivalent chromium finish that undergoes a post-plating baking process to relieve hydrogen embrittlement, especially in high-strength steel fasteners. It provides excellent corrosion resistance and durability in structural, automotive, and outdoor applications.

Why Choose South Coast Fasteners?

We know fasteners, and we understand your deadlines. At South Coast Fasteners, we stock the materials, finishes, and sizes you need, backed by a knowledgeable team that knows your industry. From small batches to high-volume production, we deliver consistent quality with fast turnaround.

Order Button Socket Cap Screws Online Today

Browse our online inventory and order the button socket cap screws you need with confidence. If you’re not sure which spec is right for your application, give us a call or reach out to our team. We’ll make sure you get the right products, right on time.