Stainless Steel Square Round Head Pin, CNC Machined Locating Dowel Pin for Tooling Fixtures

Stainless Steel Square Round Head Pin, CNC Machined Locating Dowel Pin for Tooling Fixtures

1. Product Overview

Stainless Steel Square Round Head Pin is precision positioning and limiting component widely used in tooling fixtures, automation jigs and precision machinery. Manufactured from premium stainless steel via integrated CNC turning and milling, this locating pin features square head and rounded guiding tip with tight dimensional tolerance and burr-free smooth surface. The square head allows easy clamping for assembly and disassembly; the round tip guides smooth insertion and avoids scratching workpieces. With excellent anti-corrosion and wear-resistant performance, it is applied for workpiece positioning, limiting and alignment. Standard sizes are available, and custom processing based on drawings or samples is supported for various precision tooling and automated equipment.

2. Core Product Advantages

1. Optimized Square & Round Head Structure for Easy Assembly

Integrated design combining square head and rounded tip. The square head enables secure clamping to prevent pin rotation during installation. The curved round tip serves as a guide for smooth alignment into holes, avoiding scratches caused by forced assembly and improving efficiency during frequent fixture adjustment.

2. High Precision CNC Machining for Reliable Positioning

Full CNC precision machining strictly controls outer diameter, overall length, concentricity and surface finish. Uniform fitting clearance ensures stable repeat positioning accuracy. The pin maintains consistent alignment after long-term repeated use, guaranteeing stable processing quality for precision manufacturing.

3. Stainless Steel Material, Anti-Rust & Long Service Life

Stainless steel material offers good oxidation resistance and corrosion resistance, suitable for workshop environments with oil mist and humidity. The material features balanced toughness and wear resistance, hardly deformed under frequent assembly. Extra rust-proof treatment is not required for general working conditions to lower maintenance cost.

4. Smooth Rounded Tip to Protect Workpieces

Arc transition design removes sharp edges. It effectively prevents scratching on inner holes of workpieces during insertion. Optional surface polishing reduces friction, keeping stable performance under repeated plugging for precision part processing.

5. Flexible Non-Standard Customization

Customizable pin diameter, length, square head size, radius of round tip, step structure and other special shapes. Trial orders and mass production are both acceptable to meet personalized positioning demands of non-standard fixtures, automation jigs and testing equipment.

3. Application Scenarios 

✅ Square round head locating pins for industrial tooling fixtures ✅ Alignment pins for automated assembly jigs ✅ Positioning pin components for precision testing equipment ✅ Auxiliary alignment pins to prevent workpiece offset for molds ✅ Custom stainless steel guide pins for non-standard machinery

4. Quality Assurance & Service 

Every stainless steel square round head pin undergoes full dimensional inspection, burr screening and assembly fitting test before delivery to ensure dimensional accuracy and surface quality. Standard items can be delivered quickly. We provide one-stop custom CNC machining service, supplying reliable positioning pin parts for automation, precision machining and tooling manufacturers worldwide.