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Hex Internal Thread Step Shaft and Multi-Step Shoulder Locating Pin with Dacromet Surface Treatment
| Place of Origin | Dongguan Guangdong |
| Brand Name | SITUO |
| Certification | ISO9001 & TS16949 |
| Model Number | ST-000095 |
Hex Internal Thread Step Shaft
,Dacromet Surface Treatment Locating Pin
,Multi-Step Shoulder Locating Pin
This steel step shaft — also known as a hex internal thread locating pin — is a multi-stage shoulder precision hardware component manufactured via CNC turning. The product features a stepped outer diameter structure and a built-in hexagon internal thread, delivering stable concentricity and high positioning accuracy. It is widely used in automation jigs, testing fixtures, assembly equipment, transmission mechanisms, and electronic equipment assembly. Situo Hardware supports full non-standard customization and can produce according to your drawings, samples, tolerances, and assembly requirements.
- Structure design: Multi-step shoulder with hex internal thread design, convenient for locking and positioning.
- Machining process: CNC precision turning with strict concentricity control and smooth surface finish.
- Material options: Carbon steel or stainless steel available, with surface treatments such as polishing, passivation, and blackening.
- High positioning accuracy: Controllable tolerance, tight fit, and no loose deviation during repeated positioning.
- Custom service: Support for custom diameter, length, thread specification, step size, and surface finish.
- Automation fixture & positioning jig
- Testing tooling and inspection equipment
- Electronic product assembly mechanism
- Industrial transmission and connection assembly
- Automated production line positioning components
A: Carbon steel and stainless steel (SUS303, SUS304) are available.
A: Yes — polishing, passivation, black oxide, and plating are optional.
A: STEP, IGS, PDF, and CAD drawings are all supported.
A: Sample lead time is approximately 3–7 working days; bulk delivery time is negotiable.
We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.
Our maximum processing outer diameter is 60 mm, and the minimum control tolerance is 0.001 mm. We operate Japanese CNC Tsugami and CNC Citizen machines, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, enabling us to effectively provide customers with the best technical solutions.
Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.
Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.
Our customers include Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, and Siegenia.
| Main product names | Stainless steel screws, carbon steel screws, pins, rivets, nuts, eccentric nails, embedded parts, and other fasteners. |
|---|---|
| Business Type | Factory / Manufacture |
| Service | CNC Machining, Turning and Milling, CNC Turning, Cold Heading, Stamping, Assembly Service |
| Material |
1). Aluminum: AL 6061-T6, 6063, 7075-T etc. 2). Stainless steel: 303, 304, 304L, 316L, 316F, 630, 410, 420, 430, etc. 3). Steel: 4140, Q235, Q345B, 20#, 45#, 1215, 12L14, 1144, 1006, 1008, 1010, 1015, 1018, 10B21, 1035, 1065 etc. 4). Alloy steel: 5140, 4135, 4140, 3435, 5120, 415, 435, 440 etc. 5). Titanium: TA1, TA2/GR2, TA4/GR5, TC4, TC18 etc. 6). Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000 (H90), C27000, C51900, C11000, C3604, H62, H65 etc. 7). Copper, bronze, magnesium alloy, Delrin, POM, Acrylic, PC, etc. |
| Finish | Sandblasting, Anodize color, Blackening, Zinc/Nickel Plating, Polish, Powder coating, Passivation PVD, Titanium Plating, Electrogalvanizing, electroplating chromium, electrophoresis, QPQ (Quench-Polish-Quench), Electro Polishing, Chrome Plating, Knurl, Laser etch Logo, etc. |
| Drawing format | STEP, STP, GIS, CAD, PDF, DWG, DXF etc. or samples. |
| Tolerance | +/-0.01 mm ~ +/-0.05 mm |
| Surface roughness | Ra 0.1 ~ 3.2 |
| Inspection | Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier, CMM, Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge. |
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