Threaded Coupling Solutions

threaded coupling Stucchi has more than 60 years of experience in designing, engineering and fabricating quick connect solutions such as our threaded coupling products. Established in 1960, we have vast experience in providing high quality fluid control and connection products that meet and exceed customer expectations. Committed to continual improvement through research and development, we produce innovative product solutions for your quick release application, no matter the industry.

Our quick release products are found around the globe in a variety of applications such as mobile use, where equipment rigs are on the road subjected to harsh environments and wear and tear. The oil and gas industry has a critical need for high quality and durable connectors that hold their seal under pressure, preventing catastrophic results. Manufacturing and industrial processes require reliable quick connect solutions to maintain hydraulic equipment for automation. Agricultural applications rely on durable quick connect products to keep their equipment performing as intended.

Stucchi is a valued supplier to these industrial applications and many others, providing high quality quick release products for optimum performance of heavy machinery and equipment used in critical applications.

Threaded Coupling Products

Stucchi offers threaded coupling items which are ideal in hydraulic circuit applications that are subjected to high pressure impulses or circuits that experience residual or trapped pressure in a line. The threaded coupler design eliminates premature wear and brinelling. Our threaded coupler products include the following:


    The VEP Series is a popular solution for hydraulic circuit applications subject to high pressure impulses and circuits which experience high residual or trapped pressure in a line. Thread-to-connect design eliminates premature wear or brinelling, a patented internal valve allows connection/disconnection with high residual pressures, and the flat face design avoids loss of hydraulic fluid and contamination into the circuit. A yellow o-ring indicator makes the VEP series even easier to work with.

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    The VEPHD (Heavy Duty) Series offers the same features of the VEP series, with upgraded material, a yellow o-ring visual ID, and larger mating areas. Like the VEP, the VEPHD is a popular solution for hydraulic circuit applications subject to high pressure impulses and circuits which experience high residual or trapped pressure in a line, offered in a more durable, higher grade of steel and all QPQ plating for increased longevity.

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    The VEPHDL Series Heavy-Duty Locking Flat Face Coupler is the ultimate failsafe solution for the most demanding hydraulic applications. This locking female version is interchangeable with standard VEPHD series flat face thread-to-connect heavy duty couplers and features a visual connection indicator for foolproof connection, every time.

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    The VP Series Auto-Lock Sleeve Flat Face Coupler is the most popular solution for high residual pressure. With an auto-lock sleeve and the ability to connect/disconnect with high residual pressure, the VP series provides positive secondary retention in hydraulic circuit applications subject to high pressure impulses and circuits which experience high residual or trapped pressure in a line.

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  • VT17-ZN RoT-lock

    Stucchi’s multi-year experience in screw-to-connect Flat Face couplings has led to the creation of VT, the new top-of-the-line series for this kind of couplings. Thanks to the new design with the axial bearing integrated in the male coupling and the automatic locking sleeve, the VT series is the right solution for heavy duty applications: even in presence of the most severe pressure impulses, vibration and rotation of the hoses, the correct functionality of the couplings is guaranteed.


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Our threaded coupling solutions are ideal in large construction equipment, excavators, demanding hydraulic applications, equipment needing junction points and many other critical applications.

Stucchi provides high quality products with ongoing technical support to ensure the success of your operation. You can count on our expertise in analyzing, designing, engineering and fabricating the right solution for your quick connect equipment needs.


Stucchi is recognized worldwide for high quality, durable and reliable quick release products for demanding and critical applications. We are responsive to your needs, providing the optimum quick connect product for your application. Contact us today to learn more about our custom solutions and to speak with an engineer about our superior products, including the threaded coupling.