Four-Wing Star-Shaped Thumb Screw

Featuring a four-wing star-shaped structure formed from metal bar stock through combined turning and milling processes, this component includes a standard external threaded shaft at the top and an integrated cross-shaped winged handle at the bottom. This一体化 design is specifically engineered for mechanical connections requiring frequent manual adjustment, locking, or disassembly. It is commonly used in quick-clamping devices for tooling fixtures, fine-tuning mechanisms for experimental equipment, and modular connection nodes in various non-standard automated production lines.

Manufacturing prioritizes controlling the symmetry of the star-shaped wings and the coaxiality of the central threaded axis to ensure balanced torque and smooth operation during tightening. The edges of the wings are typically chamfered or deburred to prevent hand injuries. Leveraging our existing machining centers and CNC lathe clusters, we efficiently handle multi-process operations—from bar cutting and outer diameter turning to side milling—for these irregular rotary parts. We strictly control thread precision (e.g., M6/M8 specifications) and surface roughness according to drawing requirements.

Ningbo Zhixiu Import & Export Co., Ltd. possesses mature capabilities in manufacturing non-standard hardware components, supporting customization based on 3D drawings or physical samples. Materials such as stainless steel, carbon steel, aluminum alloy, or brass are available, complemented by surface treatments like electro-galvanizing, blackening, passivation, or anodizing to enhance corrosion resistance and aesthetic quality. Our production process incorporates projectors and hardness testers for key dimension verification, allowing us to flexibly meet delivery needs for both small-batch, high-variety orders and large-scale standardized production, providing a one-stop solution from raw material selection to final delivery.