What Are DIN 912 Socket Head Cap Screws?
What Are DIN 912 Socket Head Cap Screws?
Socket head cap screws are among the most widely used fasteners in engineering, machinery, and precision assemblies. Manufactured to the DIN 912 standard, these high-strength screws feature a cylindrical head with an internal hex drive, allowing secure tightening using an Allen key or hex bit.
Their compact head design and ability to achieve high torque make them ideal for applications where space is limited but strong clamping force is required.
DIN 912 socket head cap screws are commonly used across mechanical engineering, automotive manufacturing, metal fabrication, and industrial machinery.
Key Features of DIN 912 Socket Head Cap Screws
DIN 912 socket cap screws are designed for strength, precision, and ease of installation.
Hex Socket Drive
The internal hex drive allows the screw to be tightened using an Allen key or hex bit, enabling higher torque compared to traditional slotted or Phillips fasteners.
Cylindrical Head Design
The tall cylindrical head allows the fastener to sit neatly within counterbored holes while maintaining strong clamping force.
High Strength Fastening
Socket head cap screws provide reliable clamping force and are commonly used in high-load assemblies.
Compact Installation
Because they are driven internally rather than with an external head, these screws are ideal where space around the fastener is limited.
Available Materials & Finishes
DIN 912 socket head cap screws are available in several materials to suit different environments and applications.
A2 Stainless Steel
A2 stainless steel is one of the most common materials used for socket cap screws. It provides excellent corrosion resistance and is suitable for general indoor and outdoor use.
A2 stainless steel fasteners are commonly used in machinery, construction, fabrication, and general engineering applications.
A2 Black Stainless Steel
A2 black stainless steel socket cap screws provide the same corrosion resistance as standard A2 stainless but feature a black finish for a more discreet or aesthetic appearance.
These are often used in applications where appearance is important, such as automotive components, equipment assemblies, or visible hardware installations.
A4 Stainless Steel
A4 stainless steel provides a higher level of corrosion resistance than A2 stainless steel. It is particularly suitable for harsh environments such as marine applications, coastal installations, and chemical exposure.
A4 socket head cap screws are commonly used in marine engineering, food processing equipment, outdoor infrastructure, and environments where corrosion resistance is critical.
Common Sizes Available
DIN 912 socket head cap screws are available in a wide range of metric sizes to suit different applications.
Typical thread sizes include:
M1.6, M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24
Each thread size is available in multiple lengths depending on the required fastening depth and application.
Browse Our Range of DIN 912 Socket Head Cap Screws
At our store, we supply a wide range of DIN 912 socket head cap screws in multiple materials and sizes, including:
Available in metric sizes from M2 to M24 with a wide range of lengths to suit engineering, mechanical, and industrial applications.
Browse our full range to find the right fastener for your project.
Frequently Asked Questions
What is a DIN 912 socket head cap screw?
A DIN 912 socket head cap screw is a metric fastener with a cylindrical head and internal hex drive designed for high-torque tightening using an Allen key.
What is the difference between A2 and A4 stainless steel screws?
A2 stainless steel suits most general environments, while A4 stainless steel offers higher corrosion resistance for marine or chemical exposure.
What are socket head cap screws used for?
They are commonly used in machinery, engineering assemblies, automotive components, and metal fabrication where strong, compact fastening is required.
What sizes do DIN 912 socket head cap screws come in?
DIN 912 socket head cap screws are typically available in metric sizes from M1.6 up to M24 with various lengths.
What tool is used to tighten a socket head cap screw?
Socket head cap screws are tightened using an Allen key (hex key) or hex bit socket.