Hardened SUJ2 Internal Thread Cylindrical Locating Dowel Pins D5-D16 | Mold Fixture Positioning Pin sndp000005 by sinoboltco
$0.05
sinoboltco precision internal thread locating dowel pins (model sndp000005), made from high-grade SUJ2 bearing steel, fully hardened to 58HRC. Outer diameter range D5-D16mm with matched internal extraction thread M3-M8. Precision tolerance strictly held at +0.005mm to +0.010mm. Length customizable from 10mm to 80mm. Engineered perfectly for high-precision mold, jig, automation fixture, and heavy-duty mechanical positioning work.
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💡PRICE: EXW (BASE MODEL). MAX. SAMPLE ORDER: 10 UNITS.
The listed price applies strictly to our smallest standard specification. If your project requires larger diameters, custom lengths, or bulk wholesale pricing, please use the [ INQUIRY NOW] button to get an accurate quote.
| Key attributes | |||
|---|---|---|---|
| type | Dowel Pin | material | Stainless Steel |
| place of origin | ShangHai, China | size | Custom |
| brand name | sinoboltco | model number | sndp000005 |
| Product name | Dowel Pin | Head Diameter | 5/6/8/10/12/13/16/mm |
| Pin Length | 10~70mm | Keyword | Dowel Pin |
| Service | OEM/ODM | Aftersales | 1 on 1 Customer Service |
| MOQ | 1 PCS | Custom MOQ | 100 PCS |
| Application | conveyer / transportation |
| Packaging and delivery | |||
|---|---|---|---|
| Sales Unit | Single Product | Individual Package Dimensions | 13X9X8 cm |
| Single gross weight | 0.050 kg |
| Delivery Time | ||||
|---|---|---|---|---|
| Quantity | 1 – 1000 | 1001 – 5000 | 5000-10000 | >10000 |
| Eastern Time (days) | 10 | 15 | 25 | To be determined |
Our internal thread cylindrical locating dowel pins, cataloged under our proprietary branding sequence as sndp000005, are premium positioning components precision-engineered by sinoboltco for industrial mold tooling, automotive welding fixtures, automated assembly lines, and high-tolerance machinery applications.
Unlike budget alternatives on the market that utilize low-carbon steel with superficial surface hardening, sinoboltco utilizes genuine SUJ2 high-carbon chromium bearing steel as our structural raw material. Every single pin undergoes a rigorous, fully controlled quenching heat treatment process to achieve a uniform through-body hardness of 58HRC. This matrix guarantees exceptional wear resistance, immense anti-deformation structural strength, and an extended operational lifespan under repetitive high-frequency assembly and disassembly cycles.
The outer diameter tolerance is strictly maintained within the ultra-precise band of +0.005mm to +0.010mm across all sizes, ensuring predictable interference fits and absolute alignment accuracy during tool setups. Architecturally, each pin features a flawless monolithic structure integrated with a rounded R0.1~0.2 mm leading edge for seamless alignment, a engineered 15° air vent relief channel to prevent pneumatic locking inside blind holes, and a standardized metric internal extraction thread calibrated directly to the outer diameter. To streamline workshop maintenance, the extraction thread sizes are systematically mapped: D5 corresponds to M3, D6 to M4, D8 to M5, D10 and D12 to M6, and D13/D16 to M8. Additionally, a precise 0.15mm flat anti-rotation notch is machined onto the end surface, preventing the pin from spinning freely when screwing in extraction bolts or pullers.
Application Scenarios
Plastic injection mold core & cavity interlocking and alignment.
High-speed metal stamping progressive die positioning.
Automated robotic production line assembly jigs and inspection fixtures.
Automotive chassis welding fixture alignment structures.
Precision calibration tool and metrology setup indexing.
Product Advantages
Premium SUJ2 Bearing Steel & 58HRC Through-Hardening: Ultimate wear-resistance, completely eliminating soft-core bowing or scoring under high-tonnage clamping forces.
Ultra-Precise Tolerance Control (+0.005mm to +0.010mm): Delivers zero-clearance, repeatable positioning to maximize final component machining yield rates.
Diameter-Calibrated Internal Extraction Thread (M3-M8): No more workshop guesswork. Technicians can easily extract pins using standard bolts without specialized hydraulic pullers or destructive hammering.
Advanced Anti-Lock & Anti-Spin Structural Features: Integrated 15° air vent slot and a 0.15mm flat notch eliminate pneumatic air-locks and spinouts during tight maintenance routines.
Direct Factory Sourcing by sinoboltco: True B2B supply chain continuity, direct-from-manufacturer dimensional testing, and complete removal of middleman distribution markups.
Product Features
Material: SUJ2 Premium High-Carbon Bearing Steel
Hardness: Full through-quenched 58HRC
Outer Diameter Tolerance: +0.005mm to +0.010mm
Internal Thread Dimension Matrix: D5/M3, D6/M4, D8/M5, D10-D12/M6, D13-D16/M8
Geometric Details: R0.1~0.2mm rounded guide head, 15° longitudinal air vent slot, ~0.15mm anti-rotation flat notch.
Diameter Matrix (D): 5mm, 6mm, 8mm, 10mm, 12mm, 13mm, 16mm
Length Range (L): 10mm up to 80mm (Configured precisely per diameter bracket, see standardized dimension grid below)
Surface Treatment: Super-finish polished, treated with long-term industrial anti-rust preservation oil.
Proprietary B2B Ordering Code: sndp000005-D-L (e.g., sndp000005-10-25 for Diameter 10mm, Length 25mm)
🛠️ Standardized Dimension Grid Matrix (Direct Data Mapping)
| Outer Diameter D (mm) | Tolerance (mm) | Available Standard Lengths L (mm) | R (mm) | e (mm) | Internal Thread M |
| 5 | +0.005 / +0.010 | 10, 15, 20, 25, 30 | 6 | 1.5 | M3 |
| 6 | +0.005 / +0.010 | 10, 15, 20, 25, 30, 35, 40, 50 | 8 | 2.0 | M4 |
| 8 | +0.005 / +0.010 | 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80 | 8 | 2.0 | M5 |
| 10 | +0.005 / +0.010 | 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80 | 10 | 2.5 | M6 |
| 12 | +0.005 / +0.010 | 20, 30, 40, 50, 60, 70, 80 | 10 | 2.5 | M6 |
| 13 | +0.005 / +0.010 | 40, 50, 60, 70, 80 | 15 | 3.0 | M8 |
| 16 | +0.005 / +0.010 | 40, 50, 60, 70 | 15 | 3.0 | M8 |
What value-added services does Sinoboltco provide?
We offer a comprehensive suite of industrial solutions, including OEM/ODM custom manufacturing, free prototyping for bulk projects, and 1-on-1 engineering consultancy. Additionally, we act as a strategic sourcing partner in China for clients requiring specialized hardware procurement and quality inspection.
How do I place an order or get a quote?
Browse our product catalog and note the specific requirements (diameter, grip length, and material). You can click the “Inquiry” button or email us directly with your technical drawings. Our technical representative will provide a detailed quote and lead-time assessment within 24 hours.
What is the Minimum Order Quantity (MOQ)?
For standard components in stock, we support your prototyping needs with an MOQ of just 1 piece. For custom-engineered or non-standard parts, the MOQ typically starts at 100 pieces, depending on the manufacturing complexity.
What are the typical shipping times and manufacturing lead times?
Production: Regular orders are processed within 5-7 working days, while bulk industrial orders take 10-15 days.
Shipping: We offer Express Delivery (5-7 days) for urgent requirements and Sea Freight (20-35 days) for cost-effective bulk shipments.
Can I inspect the facility or meet the team?
Absolutely. We value transparency. You are welcome to visit our office in Shanghai. For international clients, we offer live video inspections and virtual tours to verify production standards and quality control processes.
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SINOBOLTCO: YOUR RELIABLE SOURCING PARTNER
As a dedicated sourcing specialist, Sinoboltco bridges the gap between premium Chinese manufacturing and global quality standards. We provide personalized service, rigorous quality supervision, and flexible supply chain solutions tailored to your specific project needs. We don’t just supply parts; we manage your peace of mind.
| SERVICE ITEM | WHAT WE DELIVER |
|---|---|
| Custom Sourcing | Finding the perfect match for your unique technical drawings. |
| Quality Supervision | On-site inspection and material certification for every order. |
| Flexible MOQ | Supporting both prototyping and mass production scales. |
| Risk Management | Secure payment, reliable lead times, and transparent updates. |
| Technical Support | Expert advice on material selection and surface treatments. |
Exceptional Craftsmanship &detail
Advanced Processing
High-precision CNC machining and strict tolerance control ensure that every component meets your exact engineering requirements.
Reliable Durability
Professional surface treatments provide superior corrosion resistance and enhanced durability for long-term outdoor performance.
Supply Chain & Quality Control
Check: Integrated Supply Network (Top-tier Partner Factories)
Check: Verified Material Purity (Full Traceability)
Check: Strict QC Standards (Advanced Inspection Equipment)
- Check: Consolidated Shipping Solutions (Save on Logistics Costs)
LARGE STOCK & FAST GLOBAL DELIVERY
Port Proximity:Shanghai. Streamlined export processes for rapid global shipping.
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