Description
Socket Head Cap Screws
Screws & Fasteners – Socket Head Cap Screws
Socket head cap screws are essential in machine parts, die fixturing, and clamping applications. Their design, featuring an internal hex socket, allows them to be driven in tight spaces where traditional wrenches or sockets cannot fit. These screws, driven with an Allen wrench or hex key, require less surface area and provide a reliable fastening solution for constrained spaces.
These socket cap screws are perfect for applications requiring a polished appearance or a broader bearing surface. Featuring a recessed internal socket drive, they offer added strength and are designed for use in machinery, automotive, electronic components, and heavy equipment. The socket drive design prevents slippage when installing into pre-drilled holes.
Types of Socket Head Cap Screws
- Inch System Standard Socket Head Cap Screws
- Metric System Standard Socket Head Cap Screws
- Low-Profile Standard Socket Head Cap Screws
- Flanged Standard Socket Head Cap Screws
- Flat Head Socket Cap Screws
- Button Head Socket Cap Screws
- Flanged Button Head Socket Cap Screws
- Vented Socket Head Cap Screws
- Locking Socket Head Cap Screws
Features
Socket head cap screws have a hexagonal recess, allowing for internal wrenching with an Allen wrench or hex key. This eliminates the need for side clearance and permits placement close to other components. They are available in various head configurations to fit into tight spaces, minimize snagging, or provide a flush fit with the fastening surface.
Threading Options
- Fully Threaded Screws: The thread length equals the screw length, allowing full installation into a threaded hole.
- Partially Threaded Screws: Feature an unthreaded portion under the head, providing more holding power when side forces are applied.
Locking Mechanisms
- Nylon Patch or Nylon Pellet: Applied to the threads to prevent loosening due to vibration by creating a frictional force.
Materials
Socket head cap screws are primarily made from alloy steel or stainless steel, but other options include silicon bronze and Ni-Cu alloy steel.
Customization
If you need a specific style or finish not available on the website, customizations are possible, including painting, plating, drilled holes, and custom lengths.
Available Sizes
AMPG offers cap screws in both metric and inch sizes, with a wide range of diameters and lengths.
Alloy Steel Socket Head Screws
- Standard High-Strength
- Mil. Spec. Alloy Steel: For military standard material and construction.
- Torx Drive: More points of contact for less slippage.
- Left-Hand Threaded: Prevents loosening of counterclockwise-moving parts.
- High-Temperature Grade B7: Meets ASTM A193 specs for high temperatures.
Stainless Steel Socket Head Screws
- 18-8 Stainless Steel: General purpose with good chemical resistance.
- Chrome-Plated Plugs: For a finished look.
- Mil. Spec. 18-8: Adheres to military standards.
- High Vacuum: Cleaned and bagged for high-vacuum systems.
- Super-Corrosion-Resistant 316: Excellent for chemicals and salt water.
- High-Strength A286: Strongest stainless steel screws, suitable for engines and turbines.
Other Materials
- Plastic: Chemical and oil resistant, nonconductive, and lightweight.
- Brass: Electrically conductive, nonmagnetic, and corrosion resistant.
- Titanium: High strength-to-weight ratio, corrosion resistant.
- Aluminum: Lightweight with good corrosion resistance.
- Nickel Alloy: Superior corrosion resistance.
- Bronze: Stronger than brass, resistant to salt water and gases.
Specialty Screws
- Low-Profile: Fit into tight spaces.
- Thread-Locking: Prevents loosening from vibration.
- Wire-Lockable: For high vibration resistance.
- Sealing: Rubber O-ring to prevent leaks.
- Extra-Wide Flanged: Distributes pressure widely.
- Tamper-Resistant: Special drive to prevent unauthorized removal.
For further customization or inquiries, please contact us. We can accommodate a wide range of specifications to meet your unique requirements.
