Flat socket cap screws provide a clean, flush fastening solution ideal for numerous applications in industries such as aerospace, automotive and construction. Nickel Systems supplies a comprehensive range of these fasteners in various high-performance materials such as Inconel® and Duplex stainless steel.
Nickel Systems stocks flat socket cap screws in various head types and sizes. Use our specifications and technical data below to select the specific fastener for your next project. We can also provide custom alloys, dimensions and finishes upon request.
Get our product description, parts picture, industries & applications:
What Are Socket Screws?
Socket screws are fasteners that feature a hexagonal recess, designed to be installed and removed using an Allen wrench or hex key. These screws can withstand higher torque application compared to standard screws for a secure and tight fit. The hex drive ensures reliable performance, especially in tight spaces where other fasteners may not be suitable.
Key Characteristics
Key attributes of socket screws include:
Hexagonal recess
Fully or partially threaded shafts
Enhanced resistance to cam-out
Minimal space requirement
Common Types
Socket screws come in various styles to accommodate specific requirements:
Low-head socket cap screws
Button socket cap screws
Socket head shoulder screws
Socket set screws
Vented socket screws
What Are Flat Socket Cap Screws?
A flat socket head cap screw is a type of fastener commonly used in machinery, automotive and construction applications. It features a flat, cylindrical head with a hexagonal socket (recess) in the center, allowing it to be tightened or loosened with a hex key or Allen wrench. The flat head design provides a flush surface when installed, which can be useful when a smooth finish is desired or when the screw head shouldn’t protrude from the surface of the material it’s fastening. These screws are often used in situations where a low-profile, flush fastener is needed, such as in machinery assemblies or when securing parts together in tight spaces.
It is also worth noting that there is a difference in the angle of the head between imperial and metric flat socket head cap screws. Imperial (inch-based) flat socket head cap screws typically feature an 82-degree angle under the head, while metric flat socket head cap screws generally have a 90-degree angle. This variation in angle is important to consider, especially when selecting the appropriate tool for tightening or loosening the screw.
Other Names
Flat socket cap screws are also known as:
Flat head socket cap screws
Flat socket head cap screws
Flat head Allen bolts
Countersunk socket screws
Hex socket flat head cap screws
Check out out parts diagram:
Industries and Applications
Flat socket cap screws deliver dependable performance and aesthetic appeal across diverse industries that require flush mounting and high-strength fastening:
Aerospace
Aerospace applications require fasteners that provide high tensile strength, heat resistance and flush surfaces to reduce drag and prevent interference with moving components.
Furniture manufacturers prefer flat socket cap screws for their flush appearance and strong holding power.
Applications: Cabinetry, desks and precision joinery
Materials: Stainless steel
Electronics
Flat socket cap screws are ideal for securing components in electronics where space is limited and appearance is important. Their low-profile design minimizes interference with delicate parts and assemblies.
Applications: Mounting circuit boards to a chassis, fastening electronic enclosures and attaching heat sinks
When selecting flat socket cap screws, consider the following key factors to guarantee optimal performance:
Material selection: Choose the material that offers the best resistance to corrosion, heat and pressure for your specific environment.
Accurate dimensions: Verify the dimensions, thread type and length to ensure the screw fits the intended application.
Head angle: Be aware of the difference in head angles between imperial and metric versions to ensure compatibility with your tools and assembly requirements.
Contact Nickel Systems Today for a Quote
Nickel Systems supplies an extensive selection of flat socket cap screws to meet the high-performance needs of managers, engineers and designers across numerous fields. Talk to our specialists for assistance in choosing the appropriate materials and dimensions for your project. Request a quote today.
Sample Products
Check out our flat socket cap screws sample products:
Nickel Systems provides high quality exotic grade materials that hold up in the toughest, most severe heat and corrosive environments. With our large inventory of specialty fasteners in stock, we are always ready to answer the call to serve the most challenging applications.
