T8 Screw Nut Seat Nut Block 8MM Anti-Backlash Nut POM Lead Screw Nut for 3D Printer OpenBuilds Accessories Black
T8 Anti-Backlash Nut POM Black for 8mm Lead Screw and 3D Printer Motion Systems

This T8 anti-backlash nut is a focused replacement or spare part for machines that run on 8mm lead screws, including many 3D printers, CNC builds, and OpenBuilds-style linear motion assemblies. It is made from POM and has a tr8*8 thread, with a stated size of T12*33*34mm. The nut is supplied in black and comes with one nut seat. Its purpose is straightforward: to fit a compatible T8 screw setup and help reduce unwanted play between the nut and the lead screw. If you are maintaining an existing machine or assembling a motion system that uses an 8mm T8 screw, this anti-backlash nut is a practical component to keep on hand. Please check the thread and dimensions against your own hardware before ordering.
Features and Construction

The main construction details are simple and specific. The nut body is made from POM, and the thread is tr8*8. The stated size is T12*33*34mm. These details matter because the nut must match the lead screw and the mounting space on your machine. The anti-backlash design is intended to reduce play along the screw axis, which can help support consistent movement in compatible setups.
Material and Build
The nut is made from POM, a thermoplastic commonly used for lead screw nuts in small motion systems. In this product, the POM body carries the tr8*8 thread. The anti-backlash function is part of the nut's stated design, and the assembly includes a nut seat. No additional materials, coatings, or inserts are listed in the source information, so the description is limited to POM and the supplied nut seat.
Size and Practical Fit
The stated dimensions are T12*33*34mm, and the thread is tr8*8. That means it is intended for an 8mm T8 lead screw with an 8mm pitch. The nut block is not a universal part, so the most important check is the thread specification and the mounting footprint on your machine. If your setup already uses a T8 screw with tr8*8 thread and has space for this size of nut, this is the relevant part to consider.
Uses and Placement

This anti-backlash nut is aimed at motion systems where a lead screw drives an axis. That includes 3D printers, CNC machines, and OpenBuilds-style builds. It can be used when replacing a worn or damaged nut, or when assembling a compatible screw-driven axis. The supplied nut seat helps with mounting, but the exact installation depends on the machine's design.
Event or Professional Use
In workshop, makerspace, or small production settings, keeping spare motion components can reduce downtime. A compatible anti-backlash nut can be useful when a machine axis develops play or when a nut needs replacing. Because the source information only lists POM, tr8*8 thread, T12*33*34mm size, black colour, and one nut seat, professional users should match these details carefully to the existing hardware before fitting.
Everyday Home Use
For home 3D printing, this nut can serve as a replacement part for a printer that uses an 8mm T8 lead screw. It may also suit hobby CNC or DIY motion projects with the same thread and mounting requirements. The black finish is neutral and blends with typical machine hardware. As with any motion part, correct alignment and a clean screw will affect how well it performs in use.
Benefits and Buying Value

The value of this product comes from its specific fit and its role as a spare or replacement part. It is not a general-purpose fastener; it is a T8 anti-backlash nut with a POM body, tr8*8 thread, and a stated size of T12*33*34mm. If those details match your machine, it offers a direct way to address nut play in a compatible lead screw assembly.
Reuse and Low Maintenance
POM is a common material for lead screw nuts, and the anti-backlash design is intended to help manage play over time. Keeping the screw and nut clean is a low-risk, practical step for any lead screw system. No specific lubrication or service interval is stated in the source data, so follow your machine manufacturer's guidance for maintenance.
Why Choose This Product
Choose this anti-backlash nut if you need a POM nut with a tr8*8 thread and a stated size of T12*33*34mm, supplied in black with one nut seat. It is relevant for 3D printer, CNC, and OpenBuilds-style setups that use an 8mm T8 lead screw. The listing provides the key specifications so you can check compatibility before buying. If the thread, size, and colour match your requirements, this is a straightforward replacement part.
