Recommend Products
Precision threaded shafts for linear motion, lead screws, and custom assemblies. Tight tolerances, multiple thread forms. Ideal for robotics, automation, and medical devices. Request a quote.CustomUS $1.69 - US $3.95
CustomUS $1.25 - US $3.26
CustomUS $0.15 - US $2.68
Precision custom CNC turning in 2-axis, multi-axis, and Swiss-type. Tolerances to ±0.002 mm on aluminum, steel, stainless, brass, and titanium. Quote in 4 hours, parts in 7 days.CustomUS $1.25 - US $2.53
Precision CNC Turning Stainless Steel Adjustable Threaded Studs with Hex-Head Locking Collars
Custom
Our company can process CNC turning machining male thread parts, stainless steel and other materials such as aluminum, brass and plastic. Exquisite technology, high precision and good quality. If you have a need can feel free to contact us!
minimum order
1 piece
Quantity
$1.20 - $1.20
/ piece
Our company can process CNC turning machining male thread parts, stainless steel and other materials such as aluminum, brass and plastic. Exquisite technology, high precision and good quality. If you have a need can feel free to contact us!
| Key Attributes | |
| Machining Capabilities | CNC Machining Processes:Broaching, Drilling, Etching/Chemical Machining, Laser Machining, Milling, Turning, Wire EDM, Rapid Prototyping |
| Materials Supported | Aluminum, Brass, Bronze, Copper, Hardened Metals, Stainless Steel, Steel Alloys, Plastic |
| Micro-Machining or Not | Micro Machining |
| Key Processes | CNC Milling, Turning, Drilling |
| Tolerance Standards | Industry-standard precision |
| Surface Treatments | Anodizing, Plasting, Polishing, etc. |
| Applications | Control Systems, Automotive Components |
| Place of Origin | Guangdong, China |
| Model Number | CUSTOM |
| Service Type | Customized OEM/ODM Manufacturing |
| Drawing Formats | PDF, CAD, IGES, STEP |
| Delivery Time | 7-30 Days |
| MOQ | 10 pcs |
· Product Overview
Introducing the YITECH Precision Stainless Steel Adjustable Threaded Studs with Hex-Head Locking Collars — a pair of high-performance, modular fasteners engineered for micro-adjustment, rigid axial positioning, and secure clamping in precision mechanical assemblies. Each stud features:
- A fully threaded shaft (M4/M5/M6) for fine linear adjustment
- A central hexagonal locking collar that slides along the thread and locks via friction or set screw (optional)
- A flat hex head at one end for tool-driven tightening or indexing
Unlike standard screws or rods, these studs are designed as adjustable spacers — allowing users to precisely set distances between components (e.g., sensor-to-lens, motor-to-gear, or plate-to-plate gaps) and then lock the position permanently or semi-permanently. The two units shown exemplify symmetry and interchangeability: they can be used independently or paired for dual-sided adjustment.
Crafted from A2-70 / 304 stainless steel, they combine superior corrosion resistance, high tensile strength, and dimensional stability. The uniform matte brushed finish, precision-machined threads, and tight tolerances ensure smooth operation, zero backlash, and long-term reliability — even under vibration, thermal cycling, or repeated adjustment cycles.
Ideal for engineers, robotics builders, and industrial designers who demand repeatability, fine control, and tool-assisted locking without complex mechanisms.
· Core Specifications
| Feature | Specification |
|---|---|
| Material | AISI 304 Stainless Steel (A2-70 grade), fully annealed for optimal machinability |
| Surface Finish | Uniform matte brushed (Ra ≈ 0.35 μm); threads electro-polished (Ra ≤ 0.2 μm) |
| Overall Length | Standard: 38mm total (threaded length = 26mm); customizable 25–100mm |
| Shaft Diameter | Ø5mm (standard); optional: Ø4mm, Ø6mm |
| Thread Type | Metric external thread: M4 / M5 / M6 (fine pitch, Class 6g tolerance) |
| Locking Collar | Hexagonal, 8mm across flats × 6mm thick; internal bore = shaft OD + 0.02mm clearance; optional set-screw hole (M2) |
| Head End | Flat hex head (8mm AF), 3mm thick; chamfered edges for safe handling |
| Tolerance | ±0.01mm (thread major diameter), ±0.02mm (length), concentricity ≤0.015mm |
| Processing Method | 5-axis CNC turning + hex milling + thread rolling + deburring + passivation |
| Max Axial Load | 900 N (static, M6 version); tested at 550 N dynamic (10G vibration, 1M cycles) |
| Adjustment Resolution | ~0.05mm per full turn (M5, 0.5mm pitch) — ideal for micropositioning |
| Operating Temp | -40°C to +150°C (short-term up to 200°C) |
· Application Scenarios
These adjustable threaded studs are purpose-built for applications requiring precise, repeatable, and lockable axial spacing:
- Optics & Imaging Systems
→ Lens-to-sensor distance calibration in machine vision cameras
→ Laser diode mounting with focus fine-tuning
→ Interference filter or polarizer spacing in spectrometers - Robotics & Actuation
→ Gear mesh adjustment in planetary reducers
→ Servo horn offset tuning for joint alignment
→ End-effector height calibration (e.g., gripper-to-workpiece gap) - Industrial Automation
→ Sensor bracket spacing on conveyor systems
→ Pneumatic cylinder stroke limiters
→ Modular fixture height adjusters (e.g., for PCB testing jigs) - CNC & 3D Printing
→ Z-axis bed leveling posts (replacing springs)
→ Extruder drive gear spacing for tension control
→ Tool holder concentricity shims - DIY & Prototyping
→ STEM kits requiring variable-length linkages
→ Drone payload mounts with micro-adjustment
→ Custom enclosures with user-tunable component spacing
💡 Why this design stands out:
- True micrometer-level adjustment: Thread pitch enables sub-0.1mm repeatability
- Tool-assisted locking: Hex head allows precise torque application; collar prevents drift
- No adhesives or springs needed: Pure mechanical adjustment — reliable across temperature extremes
- Modular pairing: Use one stud for single-side adjustment, or two for symmetric clamping
· Production Process Introduction
· Packaging and Shipping Methods
- Inner Packaging: 2 pcs (1 pair) per resealable anti-tarnish PE bag.
- Bulk Packaging: 100–2,000 pcs per cardboard box with custom foam dividers (prevents scratching).
- Shipping Options:
- 📦 Express (DHL/FedEx/UPS): 3–7 business days
- ✈️ Air Freight: 5–10 days (orders >1,000 pcs)
- 🚢 Sea Freight: 20–35 days (cost-effective for container loads)
- White-Label Service: Custom laser engraving (logo/part number), branded inserts, or kitted solutions (e.g., “Micro-Adjust Kit” with M5 studs + lock nuts + wrench) available.
· Frequently Asked Questions (FAQ)
Q1: What is the MOQ?
A:
A:
- Standard size (Ø5mm, M5 thread, 38mm length): 200 pcs
- Custom thread (M4/M6), diameter (Ø4/Ø6), length (25–100mm), or collar features: 500 pcs
- Samples: 2–5 pcs free for verified B2B customers (shipping paid)
Q2: What's the lead time?
A:
A:
- In-stock designs: 3–5 working days after payment
- Custom configurations: 7–10 working days (includes CAD review & tooling)
- Rush service (≤4 days): Available for +20% fee (subject to capacity)
Q3: Can I customize the collar (e.g., add a set screw, change hex size, or use a knurled grip)?
A: Yes! Full customization supported:
A: Yes! Full customization supported:
- Collar: Hex (standard), knurled, flanged, or with M2 set-screw hole
- Head: Flat hex, countersunk, or spherical cap
- Threads: M3, M4, M5, M6 (metric), UNC #4–#8
- Length: 25–150mm (adjustable range scalable)
- Material: 316L stainless (marine), 6061-T6 aluminum (lightweight), or titanium Grade 2 (high-performance)
Just send your requirements — we'll provide a 3D model, tolerance analysis, and quote within 2 hours.
Q4: How do I adjust and lock the position?
A:
A:
- Slide the hex collar to desired position along the threaded shaft.
- Tighten the hex head with a wrench (e.g., 2mm Allen key for M5) — this compresses the collar against the target surface, creating friction lock.
- For permanent lock: apply thread locker (e.g., Loctite 222) to the collar-thread interface before final tightening.
- Optional: drill & tap M2 hole in collar and install set screw for absolute zero-drift.
(Video demo and torque chart available on our website)
Q5: Are CAD files provided?
A: Absolutely. Free downloadable:
A: Absolutely. Free downloadable:
- STEP / IGES / STL models (all standard variants)
- DXF templates for mounting plates
- Assembly instructions + torque recommendations
- Compatibility matrix for common platforms (OpenBuilds, URM, Robotis, etc.)
· Why Choose YITECH?
✅ Precision-Engineered Adjustment — Not generic screws; designed for repeatable micropositioning
✅ Dual-Function Design — Threaded shaft + hex collar = fine control + robust locking
✅ Industrial-Grade Durability — Cold-rolled threads + 304 stainless = 10x lifespan vs. stamped parts
✅ Fast & Scalable — From 200-piece prototypes to 10k+ unit production
✅ Trusted by Engineers Worldwide — Used in commercial robotics, research labs, and aerospace prototyping
✅ Dual-Function Design — Threaded shaft + hex collar = fine control + robust locking
✅ Industrial-Grade Durability — Cold-rolled threads + 304 stainless = 10x lifespan vs. stamped parts
✅ Fast & Scalable — From 200-piece prototypes to 10k+ unit production
✅ Trusted by Engineers Worldwide — Used in commercial robotics, research labs, and aerospace prototyping
Send Message
Comprehensive score