Hex head machine screws made of exotic materials are versatile fasteners for securing components in machinery, equipment and structural applications. These screws are commonly used across various industries, from aerospace to marine, where reliability under extreme conditions is essential. Nickel Systems offers a wide range of hex head machine screws, including options in high-performance materials like Inconel® and Hastelloy®.
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Nickel Systems stocks a wide range of sizes and head types to meet your requirements. Whether you require m12 or 10-24 hex head machine screws for machinery assembly or need specific hex head machine screw dimensions, we have the tools and expertise to guide you. Use our specifications and technical data below to select your specific screw. For custom fastener solutions, our team can supply specialty alloys, coatings and dimensions upon request.
For common sizes, hex head machine screws are typically produced in factional length increments of 1/16 in. for screws up to 5/8 in. long, 1/8 in. for screws over 5/8 in. long through 1-1/2 in. long, and 1/4 in. for screws over 1-1/2 in. long.
All dimensions are in inches.
L = Length – For common sizes, hex head machine screws are typically produced in factional length increments of 1/16 in. for screws up to 5/8 in. long, 1/8 in. for screws over 5/8 in. long through 1-1/2 in. long, and 1/4 in. for screws over 1-1/2 in. long.
For common sizes, hex head machine screws are typically produced in factional length increments of 1/16 in. for screws up to 5/8 in. long, 1/8 in. for screws over 5/8 in. long through 1-1/2 in. long, and 1/4 in. for screws over 1-1/2 in. long.
All dimensions are in inches.
L = Length – For common sizes, hex head machine screws are typically produced in factional length increments of 1/16 in. for screws up to 5/8 in. long, 1/8 in. for screws over 5/8 in. long through 1-1/2 in. long, and 1/4 in. for screws over 1-1/2 in. long.
Machine screws are threaded fasteners designed to create secure, load-bearing connections. They feature a uniform diameter with consistent threading that allows them to mate precisely with tapped holes or nuts. Unlike wood screws, which rely on a tapered design for grip into softer materials, machine screws depend on exact threading for a firm, reliable hold. They are often used in metalworking, electrical assemblies and machinery.
Key Characteristics
Uniform thread along shaft
Smaller than bolts but similar functionality (See Hex Head Bolts)
Used with a tapped hole or nut
Common Types of Machine Screws
Machine screws are available in various head types and finishes to suit diverse industrial needs:
Hex head type
Hex washer head type
Countersunk head type
Pan head type
Truss head type
Round head type
Round washer head type
What are Hex Head Machine Screws
A hex head machine screw is distinguished by its hexagonal head. This design provides multiple contact points for efficient torque application during installation and removal, ensuring a secure and durable connection. The screw’s fully threaded shaft enhances its holding strength, making it a reliable choice for a wide range of industrial applications. It can come in both coarse and fine threads and can have a standard, large or indented head.
Hex Head Machine screws may also be referred to as:
Actual Part: #10 Fine Thread Hex Head Machine Screw Nickel 200 Material
Industries and Applications
Hex head machine screws made from exotic alloys are critical for industries that operate in and around extreme conditions.
Aerospace
Aerospace industry applications demand lightweight yet high-strength fasteners that can withstand extreme heat, pressure and vibration. Nickel Systems’ hex head machine screws provide exceptional tensile strength and corrosion resistance for aircraft and spacecraft components.
Applications: Aircraft frames, engine components and landing gear
In offshore drilling operations, our hex head machine screws in exotic alloys provide superior strength and resistance to hydrogen sulfide, salt water and other chemicals.
Applications: offshore platforms, pipelines and drilling equipment
A Nitronic 60 Hex Head Machine Screw with a washer face, often used in pump & valve components (Washer faces have tighter tolerances and allow for a more secure connection between the fastener and its connecting component)
Marine
Marine environments expose fasteners to salt water, humidity and high-pressure conditions. Hex head machine screws made from the ideal materials offer long-term corrosion resistance, preventing rust and degradation in marine applications:
Applications: Shipbuilding, underwater structures including docks and marine engines
In chemical processing, hex head machine screws made from high-nickel alloys are used to secure equipment exposed to aggressive acids, solvents and other corrosive substances, offering long-lasting durability in challenging conditions.
Applications: Reactors, storage tanks and piping systems
The power generation industry uses hex head machine screws to fasten critical infrastructure subjected to high temperatures, mechanical stresses and harsh environments.
Applications: Turbines, boilers, and nuclear reactors
Materials: Inconel, Incoloy 800, and Stainless Steel
Medical Equipment
Nickel Systemsprovides biocompatible, corrosion-resistanthex head machine screws capable of withstanding sterilization processes.
Applications: Surgical tools, implants and diagnostic machinery
Tips for Purchasing the Right Heavy Hex Machine Screws
Selecting the right hex head machine screws is essential for strength, durability and optimal performance. Follow these key considerations when making a purchase:
Dimension accuracy: Choose the appropriate nominal diameter, thread type and length for a proper fit. See our hex head machine screw dimensions table above for guidance.
Material selection: Match the material to your application’s environmental conditions and mechanical demands. Browse our materials list for the best options.
Coatings and finishes: If your project requires additional protection against wear, corrosion or other environmental factors, inquire about protective coatings that can extend the life span of your fasteners.
Industry specifications: Check whether your project requires screws that comply with specific standards like ASTM, ISO or DIN.
Related components: Pair hex head machine screws with complementary parts such as machine screw hex nuts, SAE and lock washers for a complete, secure fastening system.
Actual Parts: (Left) #10-32 Hex Head Machine Screw in Nickel 200 Material, (Right) #10-24 Hex Head Machine Screw in Nitronic 60 Material
Summary
Hex head machine screws are a common type of machine screws, which are a critical component for many industries. Nickel Systems’ exotic alloy machine screws provide strength, corrosion resistance and endurance for your applications in extreme conditions. Begin your quote today.
Begin your quote today or continue learning about hex head machine screws by scrolling down▼ to see sample product pictures, related products, materials & industries.
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.
Contact Our Experts for Your High Nickel Alloy Fasteners
Reach out to Nickel Systems today and let our experienced team assist you with your hex head machine screw requirements. Whether you need guidance on specifications or help finding the perfect solution for your application, we are here to help. Contact us now and discover how we can provide the high-quality fasteners you need to enhance your projects.
