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Self-Clinching Studs

Steady Industrial Fasteners Co., Ltd.

Steady Industrial Fasteners Co., Ltd. is and , specialized in producing Blind Fasteners, including Rivet Nuts, Rivets, Clinching Fasteners and Welding Studs. With more than 10 years experience in production and exporting, STEADY is a High & New technology enterprise founded in 2001.

Wtih ISO 9001:2009, TS16949 certified facilities in Zhejiang, China. We can manufacture 1.5 billion blind rivets that meet DIN7337, IFI and GB(chinese) standards annually, Plus 283 million pieces rivet nuts 120 million pieces of clinching fasteners annually, that most competitors can not simply compete.


a professional manufacturer of blind fasteners.

STEADY manufactures over thousands different type of blind rivet nuts in steel,aluminium and stainless steel, diameter from M3-M16 in metric and UNC #6-32 to UNC 1/2-13 in inch. High advantage in stainless steel blind rivets both for open and sealed type, mutigrip,monobolt and other structural rivets. We focus on "one stop shopping" and with advantage of large production capacity , consistent quality, competitive prices, punctual delivery and excellent serverices before and after sales, STEADY has become one of the leading blind fasteners manufacuture & supplier in Asia.

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Industry knowledge

What is Head Studs?

Head studs, also known as cylinder head studs, are threaded rods or bolts that are used to secure the cylinder head to the engine block in an internal combustion engine. They play a crucial role in ensuring the proper sealing and integrity of the engine's combustion chamber.
In an engine, the cylinder head is typically a separate component that sits on top of the engine block and houses the valves, spark plugs, and other components related to the combustion process. It forms a crucial part of the engine's structure and is subjected to high pressures and temperatures.
Head studs are used instead of regular bolts in high-performance engines or engines that experience high levels of stress, such as those used in racing or heavy-duty applications. These studs are made from high-strength materials, such as hardened steel or alloy, and they have threads on both ends.
When installing a cylinder head, the head studs are screwed into the engine block, and the cylinder head is placed on top of them. The studs extend through the cylinder head, and nuts are threaded onto the exposed ends of the studs. The nuts are tightened to a specific torque, creating a strong and reliable clamping force between the cylinder head and the engine block.
The use of head studs offers several advantages over regular bolts. The clamping force provided by studs is generally more consistent and uniform, reducing the risk of uneven pressure distribution and head gasket failure. Studs also provide better resistance to stretching and deformation under high loads and temperatures, ensuring a secure and reliable connection between the cylinder head and engine block.
Overall, head studs are a critical component in high-performance engines, providing enhanced strength, reliability, and improved sealing between the cylinder head and engine block.

Why choose Head Studs?

There are several reasons why head studs are chosen over regular bolts in certain engine applications. Here are some key advantages of using head studs:
Enhanced Strength and Durability: Head studs are typically made from high-strength materials, such as hardened steel or alloy, which offer superior strength and durability compared to regular bolts. This is especially important in high-performance engines that generate high levels of stress, such as racing engines or engines used in heavy-duty applications.
Consistent Clamping Force: When the cylinder head is installed, the studs provide a more consistent and uniform clamping force compared to bolts. This helps ensure even pressure distribution across the entire sealing surface, reducing the risk of gasket failure and leaks. Bolts can sometimes cause uneven torque distribution due to their inherent design, leading to variations in clamping force.
Resistance to Stretching and Deformation: Head studs are less prone to stretching or deforming under high loads and temperatures compared to bolts. This is important because the clamping force needs to be maintained even under extreme conditions to prevent cylinder head movement and maintain a proper seal. Studs provide better resistance to elongation, ensuring a more secure connection between the cylinder head and engine block.
Easier Installation and Removal: Head studs can simplify the installation and removal process of the cylinder head. The studs remain in place on the engine block, allowing for easier alignment and positioning of the cylinder head during installation. Additionally, when the cylinder head needs to be removed for maintenance or repairs, the studs make it easier to reassemble the engine by providing a guide for proper alignment.
Engine Performance and Reliability: By providing a stronger and more secure connection between the cylinder head and engine block, head studs contribute to improved engine performance and reliability. They help minimize head gasket failure, prevent leaks, and maintain proper combustion chamber sealing, which is crucial for maximizing power output, efficiency, and longevity of the engine.
It's worth noting that head studs are not necessary for all engines. They are commonly used in high-performance or high-stress applications where the benefits they offer outweigh the added cost and complexity of installation. In regular engines, regular bolts are often sufficient to ensure a reliable cylinder head connection.