Through Hole Hex Socket Internal External Thread Nut For Fastening Lighting / Furniture

   Through Hole Hex Socket Internal External Thread Nut For Fastening Lighting And Furniture

The through-hole hexagon socket internal & external thread nut is a precision fastener integrating hexagon socket drive, axial penetration, and internal & external thread conversion functions. It realizes rigid connection of different components through specification adaptation of threads at both ends, and is widely used in mechanical transmission and equipment assembly scenarios requiring concealed fastening and reducing butt joint. Its structural design combines the dual advantages of high-strength fastening and flexible adaptation, making it a key component in industrial connections for solving specification mismatch problems.

I. Core Structure and Design Highlights

• Hexagon Socket Drive Head: The head adopts a hexagon socket groove design, compatible with hexagon socket wrenches (DIN 912 specifications). It can apply high tightening torque (recommended torque for M10 model: 25-30N・m), avoiding slipping, and is suitable for concealed installation or space-constrained scenarios.
• Through-Hole Internal & External Thread Structure: Axially fully penetrating design, with internal threads at one end (for connecting bolts/screws) and external threads at the other end (for adapting to female parts/sleeves). The thread precision reaches 6H/6g, with complete thread profile and no broken teeth, ensuring connection concentricity ≤0.15mm to achieve stable force transmission.
• Mechanically Optimized Transition: The transition area between the head and the thread section is designed with arc chamfering (R≥0.5mm) to reduce stress concentration. The overall cold heading or forging forming ensures high material density without sand holes, and its shear resistance is superior to that of spliced nuts.

II. Core Parameter Specifications

III. Performance Advantages

• Flexible Reducing Adaptation: Internal and external thread specifications can be customized (same diameter/reducing), solving the problem of mismatched thread specifications of bolts, sleeves, flanges and other components, and reducing the cost of custom connectors.
• Reliable High-Strength Fastening: 8.8/10.9 grade strength is compatible with bolts of the same grade. It maintains stable pre-tightening force under vibration and impact conditions, avoiding connection loosening, and is suitable for key nodes of mechanical transmission systems.
• Friendly to Concealed Installation: The hexagon socket head can be sunk into the surface of the connector, reducing the protruding height, beautifying the appearance while avoiding collision interference. It is especially suitable for exposed components of automated equipment and precision instruments.
• Strong Anti-Corrosion and Durability: Galvanized/passivated surface treatment effectively resists atmospheric corrosion; stainless steel material can withstand humid and mild chemical environments, extending the maintenance cycle.

IV. Typical Application Scenarios

• Mechanical Transmission Equipment: Reducing connection of shaft systems between motors and reducers, fixing of ball screw ends. The hexagon socket drive ensures high-torque fastening, and internal & external threads adapt to different shaft diameter specifications.
• Automated Production Lines: Quick change parts of tooling fixtures, fixing of conveyor line guide rails. The reducing conversion function simplifies the universal design of multi-specification tooling.
• Hydraulic and Pneumatic Systems: Adapter of pipeline joints, fixing of cylinder end caps. The through-hole structure does not block fluid/gas circulation, and the high-strength feature adapts to pressure environments.
• Precision Instruments and Meters: Fixing of test equipment panels, connection of sensor mounting bases. Grade A precision ensures assembly consistency, and the hexagon socket design meets the compactness requirements of instruments.

V. Installation and Maintenance Recommendations

• Installation Points: Use a hexagon socket wrench of matching specification (avoid forced twisting with a wrench plus sleeve). Tighten according to the recommended torque (28N・m for M10 8.8 grade), ensuring complete thread engagement (engagement length ≥ thread diameter).
• Maintenance Notes: Regularly check for thread slipping and rust. For galvanized parts with local rust, clean them in time and touch up with anti-rust agent; for stainless steel parts, avoid direct contact with carbon steel to prevent electrochemical corrosion.

With its precise specification conversion capability, high-strength fastening performance and concealed installation advantages, the through-hole hexagon socket internal & external thread nut provides an efficient and reliable solution for industrial reducing connection scenarios, and is an indispensable precision fastener in mechanical manufacturing, automated equipment and other fields.