English
中文简体
Español
Set Screw
This product is a headless (or small-head) set fastener, operating with hexagonal, slotted, or Phillips head sockets. The end can clamp onto the part, is cold-forged for precision threads, and provides reliable locking. It requires no extra space and is suitable for part positioning and stopping. The full series includes various end and head types, covering mainstream systems. It is readily available, has a rust-proof surface treatment, is quality controlled, complies with environmental regulations, and compliance documentation can be provided. Non-standard customization is supported, suitable for part positioning and stopping scenarios.
- Executive Standard
- Specification Range
- Grade & Strength
- Common Materials
- Surface Treatment
- Surface Treatment
- Industry Classification
National Standards GB/T 77 (flat end), GB/T 78 (conical end), GB/T 79 (cylindrical end), GB/T 80 (concave end); International Standards ISO 4026~ISO 4029; American Standard ANSI/ASME B18.3; German Standards DIN 913~DIN 916;
Metric specifications: Thread sizes M1.0~M24, nominal length 2mm~100mm, compatible with internal hexagonal slot, slotted slot, and Torx slot drive methods, available in five end types: flat end, tapered end, cylindrical end, concave end, and knurled end; Imperial specifications: Thread sizes #0-80~1"-12, nominal length 1/16"~4", compatible with UNC/UNF thread systems.
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.
For motors, gears, shafts, and other similar parts, the core adapter parts are positioned, stopped, and prevented from moving out of control. They are screwed into the threaded holes of the workpiece, and the ends are pressed against another part to achieve fixation.
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 Set Screw Suppliers and Wholesale Set ScrewExporter && 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...
Copyright © 2026 by Yongji Precision Hardware Co., Ltd. Rights Reserved.
