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Buy Cap Screws Online UK - High Tensile Socket Cap Screws (DIN 912) | Black Finish
Secure your projects with precision-engineered Socket Cap Screws. Our range of Hex Socket Cap Screws is manufactured to the strict DIN 912 standard, offering superior high tensile strength and a durable black finish. Whether you are working on an automotive restoration, industrial machinery, or general engineering fabrication, these fasteners provide the clamping force and reliability you need. Available in a variety of sizes and pack quantities, find the exact fit for your application.
Key Features & Benefits
High Tensile Strength
Manufactured from high-grade alloy steel to withstand extreme torque and shear forces, ensuring a secure hold in high-stress environments.
DIN 912 Compliance
Manufactured to the German Institute for Standardization (DIN) to ensure precise thread geometry and head dimensions for a perfect fit every time.
Durable Black Finish
The black oxide coating offers enhanced corrosion resistance and reduces glare, making it ideal for both functional and aesthetic applications.
Hex Socket Drive
Allows for greater torque application during installation compared to standard slotted screws, reducing the risk of cam-out (stripping).
Versatile Application
Suitable for a wide range of industries including automotive assembly, heavy equipment, hydraulics, and precision engineering.
What are Socket Cap Screws?
Socket Cap Screws, often referred to as Allen head screws or hex socket screws, are a type of fastener characterized by a cylindrical head and a hexagonal recessed drive. Unlike standard bolts that require external wrenching, these screws are driven by an internal hex key (Allen wrench), making them ideal for applications where space is limited or a flush finish is required.
Why choose our High Tensile DIN 912 Socket Cap Screws?
Our fasteners are specifically chosen for automotive and engineering applications where failure is not an option. The High Tensile rating ensures these screws can handle significant dynamic and static loads. The Black Finish not only provides a professional appearance but also offers a base layer of protection against moisture and chemicals commonly found in engine bays and industrial settings.
Common Applications Include:
- Automotive engine assemblies and gearboxes.
- Hydraulic manifolds and cylinder blocks.
- Mold and die construction.
- Machinery maintenance and repair (MRO).
- General structural fabrication.
People Also Ask
Q: What does "DIN 912" mean?
A: DIN 912 is the German standard that specifies the dimensions, tolerances, and material requirements for hexagon socket head cap screws with metric threads. Choosing a DIN 912 screw ensures consistency in head height, thread pitch, and fitment.
Q: How do I choose the right size Socket Cap Screw?
A: You need to know the Diameter (e.g., M6, M8, M10), the Thread Pitch (e.g., 1.0, 1.25), and the Length (measured from under the head to the end of the thread). Use our dropdown selector to choose the correct size for your project.
Q: Are these screws suitable for high-heat automotive applications?
A: Yes, the high tensile alloy steel combined with the black oxide finish offers good heat resistance suitable for most under-hood automotive applications. However, for extreme exhaust manifold applications, we recommend our heat-resistant stainless steel range.
Q: Is the "Black Finish" corrosion-proof?
A: Black oxide offers a level of rust resistance and improves oil retention, which helps protect against corrosion. However, it is not fully waterproof; we recommend using a thread lubricant or anti-seize compound in wet environments.