
This product features a T-head and screw structure, cold-forged. The T-head can be inserted into a T-slot, sliding along the slot to adjust its position. Once tightened, it is securely fixed. The threads are precise, making it suitable for machine tools, fixtures, and other adjustable connection applications. The full range covers mainstream systems, with readily available stock. The surface is rust-proofed, quality-controlled, and compliant with environmental regulations. Compliance documentation is available. Custom head sizes and lengths are supported, and it is compatible with T-slot connections.
GB/T 37; ISO 898-1; DIN 186; ANSI/ASME B18.3.3M
Metric: Thread M3~M24, length 10mm~150mm, T-head width 5mm~30mm, thread tolerance 6g; Imperial: Thread #6-32~1"-8, length 3/8"~6", T-head width 3/16"~1-1/4".
Carbon steel grades 4.8, 6.8, and 8.8; stainless steel grades A2-50, A2-70, A4-70, and A4-80; non-ferrous metals grade not lower than 4.8.
High-quality low-carbon steel, medium-carbon steel, alloy steel, 304 stainless steel, 316 stainless steel, brass, aluminum alloy, etc.
Environmentally friendly blue-white zinc, colored zinc, black zinc, environmentally friendly nickel plating, zinc-nickel alloy plating, Dacromet coating, electrophoresis, PVD, stainless steel natural color, stainless steel passivation, etc.
Machine tools, tooling fixtures, steel structures, T-slot worktables, etc., are all equipped with T-slot guide rails, which can slide and adjust their position along the T-slot for easy assembly.
Do you need non-standard fasteners, precision metal parts, or custom structural components for a specific application?
Yongji helps you develop and manufacture special parts and custom products based on your drawings, samples, technical requirements, and target application scenarios.
Whether you need prototype quantities, pilot production, or stable mass supply, we provide an integrated solution from engineering review to production and delivery.
From fasteners to structural parts, Yongji offers integrated development and manufacturing for a wide range of custom precision hardware products.
Whether you need a few pieces for validation, small batches for development, or large volumes for mass production, we can support your project at different stages.
With integrated manufacturing resources in China and Vietnam, Yongji helps customers achieve stable quality, scalable production, and reliable delivery.

Yongji Precision Hardware is a global manufacturer specializing in precision fasteners and metal structural components. We are China T-Bolts Suppliers and Wholesale T-BoltsExporter && Company. Founded in 2003, the company has over two decades of experience serving international OEM and ODM customers across multiple industries.
With integrated manufacturing capabilities including cold heading, stamping, CNC machining and sheet metal fabrication...