Spring Ball T-Nut

Spring ball T-nuts are aluminum-profile accessories commonly used for assembling industrial aluminum frames. They work like a nut with an internal thread and are shaped to match the slot of aluminum profiles. The spring-loaded ball presses against the slot wall to increase friction and retention, helping prevent the nut from falling out when the profile is tilted or vertical.

Available sizes

Spring ball T-nuts are available in many sizes and materials (zinc/nickel plated steel, SUS304, SUS316, etc.). Below are common sizes for aluminum 30 and 40 profiles:

• Aluminum 20 spring ball nut
• Aluminum 30 – thread M4
• Aluminum 30 – thread M5 (slot 6)
• Aluminum 30 – thread M6 (slot 6)
• Aluminum 30 – thread M8
• Aluminum 40 – thread M3
• Aluminum 40 – thread M4
• Aluminum 40 – thread M5
• Aluminum 40 – thread M6
• Aluminum 40 – thread M8

For other sizes, please contact us for consultation and ordering. There are also other slot-nut styles such as diamond nuts and leaf nuts.

Materials

Commonly made from aluminum, steel, or stainless steel, and can also be produced in other materials:

• Carbon steel: strong and durable; zinc/nickel plating improves corrosion resistance and appearance.
• Stainless steel (SUS304, 316): excellent corrosion resistance for humid/outdoor environments (food, chemical, medical, marine).
• Aluminum alloy: lightweight with mild corrosion resistance; useful when weight reduction is important.
• Copper: sometimes required for special applications (electronics or anti-static requirements) due to good ductility and machinability.