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Shop Cup Point Set Screws Online at South Coast Fasteners
South Coast Fasteners, Inc. supplies cup point set screws built to lock in place and stay secure. Designed with a cup-shaped indentation at the tip, these screws bite into the mating surface to deliver strong grip without backing out under heavy vibration or load. Whether you are securing gears, pulleys, collars, or components on a shaft, these set screws give you dependable holding power where it counts.
With a wide selection of sizes, materials, and finishes in stock, South Coast Fasteners helps you get exactly what you need for mechanical builds, equipment repairs, and high-performance applications.
Build with Confidence Using Industrial Fasteners from South Coast Fasteners Trusted Nationwide
If you're looking for a trusted supplier of wholesale industrial fasteners, South Coast Fasteners is your solution. Contact our Anaheim, CA office to learn more about our product options and how we can support your project needs. For helpful service, fast order turnaround, and high-quality fasteners in bulk or small batches, choose South Coast Fasteners.
Types of Cup Point Set Screws
Cup Point Socket Set Screw, Thermal Black Oxide, Alloy
This cup point socket set screw is manufactured from high-strength alloy steel with a thermal black oxide coating for corrosion resistance. The cup point design provides a secure grip on the mating surface without damaging it. Commonly used in machinery, gear assemblies, and rotating equipment to lock components in place under load.
Cup Point Socket Set Screw, Zinc CR+3 Bake, Alloy
Featuring a CR+3 baked zinc coating, this screw offers excellent rust resistance and enhanced surface adhesion. The baked finish ensures durability and long-term performance in demanding environments. It’s ideal for industrial assemblies, mechanical locking applications, and general manufacturing use.
Cup Point Socket Set Screw, Mechanical Zinc CR+3, Alloy
This set screw utilizes a mechanically applied CR+3 zinc coating that minimizes hydrogen embrittlement while providing consistent corrosion protection. The cup point design ensures optimal holding strength without excessive surface wear. It’s frequently used in automation systems, fixtures, and gear retention applications.
Cup Point Socket Set Screw, Nylon Patch, Black Oxide, Alloy
Equipped with a pre-applied nylon patch, this set screw maintains a self-locking hold even under vibration. The black oxide finish enhances corrosion protection while providing a professional, matte appearance. Commonly used in precision instruments, high-speed machinery, and dynamic assemblies.
Cup Point Socket Set Screw, Nylon Pellet, Black Oxide, Alloy
This screw includes a nylon pellet insert for superior vibration resistance and reusability. The black oxide coating protects against rust and ensures uniform torque performance. It’s ideal for mechanical locking in aerospace, electronics, and high-precision manufacturing environments.
Stainless 18-8 Cup Point Socket Set Screw
Made from 18-8 stainless steel, this screw offers outstanding corrosion resistance and mechanical reliability. Its cup point design delivers excellent holding power without damaging shafts or mating components. Commonly used in marine, electrical, and food-grade equipment requiring rust-resistant fasteners.
Stainless 18-8 Cup Point Socket Set Screw, Nylon Patch
This stainless steel set screw features a nylon patch for added locking security and vibration resistance. The combination of stainless material and nylon seal ensures a long-lasting, reusable fastener solution. Frequently used in machinery, control panels, and automated equipment.
Stainless 316 Cup Point Socket Set Screw
Manufactured from 316 stainless steel, this set screw delivers maximum corrosion resistance in harsh, chemical, or saltwater environments. The cup point provides secure gripping without surface deformation. It’s preferred in marine, chemical processing, and high-end instrumentation industries.
Cup Point Socket Set Screw, Ni Cu Alloy, Plain
Composed of a nickel-copper alloy, this screw provides exceptional resistance to corrosion and oxidation even in extreme environments. The plain finish ensures good conductivity and ease of installation. It’s used in marine engineering, power systems, and precision electronic assemblies.
Brass Cup Point Socket Set Screw
This brass set screw offers excellent electrical conductivity and corrosion resistance while being non-magnetic. The cup point design provides reliable holding without marring softer surfaces. Common in electrical hardware, decorative fixtures, and light-duty mechanical applications.
USA Locking Socket Jam Screw, Plain, Alloy HRC 45–53
This U.S.-made locking socket jam screw is heat-treated to a hardness of HRC 45–53, providing superior strength and wear resistance. The plain alloy finish ensures consistent performance in precision assemblies. It’s widely used in heavy machinery, automotive components, and industrial locking systems requiring tight tolerance control.
Cup Point Set Screws - Material Options
South Coast Fasteners stocks cup point set screws in the following material types, each selected for strength, corrosion resistance, or specialized wear performance.Alloy Steel
South Coast Fasteners stocks cup point set screws in alloy steel for superior performance under high-torque conditions. Known for its strength and resilience, alloy steel is a staple for mechanical and industrial assemblies where dependable fastening is required. These screws hold up well in environments that demand both strength and wear resistance.
Alloy Steel Through Hardened
For applications that require uniform strength throughout the fastener, we offer through hardened alloy steel cup point set screws. This treatment process enhances overall toughness and ensures the entire screw, not just the surface, can withstand repeated torque and pressure without deforming or cracking.
Case Hardened Steel
Our case hardened cup point set screws are heat-treated to create a tough outer shell while preserving a more ductile core. This combination is ideal for situations where surface durability and internal flexibility are both needed, providing excellent wear resistance without compromising structural integrity.
Stainless Steel 18-8
South Coast Fasteners stocks cup point set screws in stainless steel 18-8 for customers who need a dependable balance of corrosion resistance and mechanical performance. Often used in general-purpose applications, 18-8 provides reliable protection against rust in environments such as light manufacturing, outdoor installations, and equipment assembly.
Stainless Steel 316
For demanding environments involving marine exposure, chemical processing, or frequent washdowns, we stock cup point set screws in stainless steel 316. This premium-grade material offers superior corrosion resistance compared to 18-8, ensuring long-lasting performance even in aggressive or high-moisture conditions.
Cup Point Set Screws - Available Finishes
Black Oxide
Cup point set screws are available with a black oxide finish for improved lubricity and a sleek appearance. This finish provides mild corrosion protection and is commonly used in indoor or controlled environments where visual uniformity and reduced glare are important.
Plain
For projects that involve secondary coatings, welding, or further treatments, South Coast Fasteners also offers cup point set screws with a plain finish. This uncoated option allows for full customization or integration into manufacturing processes without added surface interference.
Zinc Bake Cr+3
Zinc Bake Cr+3 is a durable and reliable finish that offers enhanced corrosion protection while minimizing environmental impact. Cup point set screws finished with this treatment perform well in both indoor and lightly exposed environments, providing an affordable balance of function and longevity.
Zinc Cr+3
We also stock cup point set screws with a standard zinc Cr+3 finish, designed for general corrosion protection in dry or moderate conditions. This finish is commonly used in equipment assembly, automotive applications, and general construction, offering a clean, bright appearance and dependable protection.
Why Choose South Coast Fasteners?
South Coast Fasteners knows set screws inside and out. We stock the sizes, materials, and finishes you need, ship quickly, and back it all with real product knowledge. Whether you are replacing one screw or building out a full system, we make sure you get the right part without delay.
Shop Cup Point Set Screws Online at South Coast Fasteners
South Coast Fasteners makes it easy to get the cup point set screws that fit your job. Browse our selection online and order with confidence. If you need help dialing in specs or material options, we are here to make sure you get it right the first time.