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Precision CNC Machined Bolt Fasteners For Automotive Construction / Industrial Machinery

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Qingdao Sande Technology Co., LTD

City: qingdao

Province/State:shandong

Country/Region:china

Tel:86--13573283285

Contact Person:
Ms.tian
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Precision CNC Machined Bolt Fasteners For Automotive Construction / Industrial Machinery

Brand Name Qingdao Sande Tech Co.,Ltd
Model Number OEM
Certification ISO, DIN, AISI, ASTM, BS, JIS, etc.
Place of Origin Qingdao, China
Minimum Order Quantity 1000
Price $0.5-2
Payment Terms D/P,T/T,Western Union
Supply Ability 10000PCS/month
Delivery Time 30 days
Packaging Details Wooden case
Packing into polybag into carton
Angle Tolerance ±0.5°~±1°
Finish Polished
value customizable
Dimensions depends on customer's requirements
Shipping Maritime transport
Detailed Product Description

Precision CNC Machined Bolt Fasteners - For Automotive, Construction & Industrial Machinery

 

Product Description

Our CNC machined bolt fasteners are engineered to deliver exceptional strength, dimensional accuracy, and reliability across critical industries. Manufactured with tight tolerances (±0.01mm) and premium materials, these bolts ensure secure, vibration-resistant connections in the most challenging environments.

 

Key Features & Benefits

✔ Premium Materials:

  • Stainless Steel (304/316) - Corrosion resistance

  • Alloy Steel (Grade 8.8/10.9/12.9) - High tensile strength

  • Titanium - Lightweight aerospace-grade

✔ Precision Manufacturing:

  • CNC Turning & Thread Rolling for perfect thread engagement

  • Heat Treatment (Quenching & Tempering) for enhanced durability

  • Surface Finishes: Zinc-plated, Hot-Dip Galvanized, Dacromet, or Black Oxide

✔ Wide Application Coverage:

  • Automotive: Engine blocks, chassis, transmission systems

  • Construction: Steel structures, bridges, heavy equipment

  • Industrial Machinery: Pumps, valves, conveyor systems, dies

✔ Custom Solutions Available:

  • Non-standard lengths/diameters

  • Special thread profiles (Metric, UNC, UNF, Whitworth)

  • Unique head designs (Flange, Countersunk, Shoulder)

Technical Specifications

ParameterSpecification
Diameter RangeM3-M36 (Custom up to M100)
Length Range5mm-500mm (Longer on request)
Tensile Strength800MPa-1400MPa (Material Dependent)
Thread StandardsISO, DIN, ANSI, JIS, GB
Torque ValuesPre-calculated charts provided
CertificationsISO 9001, IATF 16949, CE, RoHS

 

Industry-Specific Advantages

Automotive

  • Vibration-resistant locking features

  • Weight-optimized designs

  • Compatible with robotic assembly

Construction

  • Weatherproof coatings

  • High shear strength

  • Earthquake-resistant designs

Industrial Machinery

  • Fatigue-resistant alloys

  • Precision alignment

  • Maintenance-free operation

Keywords for SEO : CNC machined bolts, high-tensile fasteners, automotive grade bolts, construction anchor bolts, precision industrial fasteners, custom metric bolts

 

FAQ

1. What materials are available for your CNC bolts?

  • Stainless Steel (304/316 for corrosion resistance)

  • Alloy Steel (Grade 8.8, 10.9, 12.9 for high strength)

  • Titanium (Aerospace/medical applications)

  • Exotic Alloys (Inconel, Monel – custom orders)

2. What tolerances can you achieve?

  • Standard: ±0.05mm

  • High Precision: ±0.01mm (for critical assemblies)

  • Thread Tolerance: 6g (ISO), 2A/3A (ANSI)

3. Do you provide custom bolt designs?

✔ Non-standard lengths/diameters
✔ Unique head styles (e.g., flanged, countersunk)
✔ Special threads (left-hand, multi-start, micro-pitch)
✔ Branding/logos laser-engraved

 

4. How do your bolts perform in extreme conditions?

EnvironmentSolution
High Temperature (up to 1000°C)Inconel/Hastelloy bolts
Saltwater Exposure316L SS with Dacromet coating
Chemical CorrosionPTFE-coated or titanium fasteners
Vibration-ProneNord-Lock washers/thread-locking patches

 

5. What certifications do you hold?

  • ISO 9001:2015 (Quality Management)

  • IATF 16949 (Automotive Standards)

  • CE/RoHS (EU Compliance)

  • Material Test Reports (MTRs) for every batch

6. What’s your lead time?

  • Standard Bolts: 3-5 days (in-stock items)

  • Custom Bolts: 7-15 days (prototypes), 2-3 weeks (bulk)

  • Expedited Services: Available (+30% fee)

7. Do you offer surface treatments?


• Zinc Plating (5-25μm)
• Hot-Dip Galvanizing (50-100μm)
• Black Oxide (Anti-galling)
• Electropolishing (Medical/Food Grade)

 

8. How do you ensure quality?

  1. Raw material certification

  2. In-process dimensional checks

  3. Post-treatment adhesion testing

  4. 100% final inspection (CMM/optical)

  5. Salt spray testing for coated variants

9. What’s your MOQ?

  • Production Runs: 1000pcs (standard), lower MOQs negotiable

Product Tags: CNC Machined Bolt Fasteners   Automotive Bolt Fasteners   Industrial Machinery CNC Bolt Fasteners  
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