Cup Head Square Neck Bolts JIS B1171
Product: Cup Head Square Neck Bolts JIS B1171
Property Class:4.6,4.8,5.6,5.8,8.8,10.9,12.9,
A2-70, A4-70,A4-80
Finish:Zinc Plating（Yellow Zinc, Zinc Blue, Rinse Color), Black, Phosphate & Oil, Zinc Phosphate, Hot-dip Galvanized(HDG),Dacromet, Geomet
Material:Steel
Export country: USA, Japan, Australia, Europe and so on
Support customer customization
When it comes to reliable fastening in structural, machinery, and construction applications, Cup Head Square Neck Bolts JIS B1171 are the trusted choice for strength, precision, and standard compliance. Designed according to Japanese Industrial Standard JIS B1171, these bolts ensure secure holding, anti-rotation, and long-lasting performance in high-load environments.
Whether you’re working in steel fabrication, infrastructure, or mechanical assembly, Cup Head Square Neck Bolts JIS B1171 deliver unmatched reliability for critical projects.
Why Choose Cup Head Square Neck Bolts JIS B1171?
The Cup Head Square Neck Bolt JIS B1171 is engineered with a domed head and square neck that locks into wood, metal, or pre-punched materials—preventing rotation during tightening. This makes them ideal for use with flanged joints, base plates, frames, and high-vibration machinery.
These bolts conform strictly to JIS B1171, ensuring dimensional accuracy, thread integrity, and uniform tensile strength for consistent performance.
Key Features of Cup Head Square Neck Bolts JIS B1171
✅ JIS B1171 Standard Compliant – Assures dimensional precision and material strength
✅ Cup/Domed Head Design – Clean appearance and tamper resistance
✅ Square Neck Locking – Prevents bolt rotation for secure installation
✅ High-Grade Carbon or Stainless Steel – Built for durability and corrosion resistance
✅ Smooth Shank with Unified Threads – Allows for optimal load distribution
✅ Available in Multiple Finishes – Zinc plated, hot-dip galvanized, black oxide, and more
Applications of Cup Head Square Neck Bolts JIS B1171
The Cup Head Square Neck Bolts JIS B1171 are widely used in:
?️ Steel and metal structures
? Equipment and machinery assembly
? Timber construction and wooden fixtures
? Highway guardrails, fences, and railings
? Flanged joints in industrial piping or frames
Their non-rotating square neck design is especially ideal for one-sided installation where access is limited, making them a go-to solution for OEMs, contractors, and engineers.
What Makes Cup Head Square Neck Bolts JIS B1171 Stand Out?
| Feature | Benefit |
|---|---|
| JIS B1171 Compliance | Meets strict Japanese industrial tolerance and strength standards |
| Square Neck Fit | Locks into substrate, prevents rotation, allows easy one-man installation |
| Tamper-Resistant Cup Head | Ideal for public infrastructure and safety-critical systems |
| Corrosion-Resistant Coatings | Suitable for outdoor, marine, or humid environments |
| Wide Size Range (M6–M20+) | Fits diverse industrial and structural needs |
Customer Reviews
"The Cup Head Square Neck Bolts JIS B1171 are incredibly reliable. We’ve used them in hundreds of infrastructure projects and never had a failure."
— ⭐⭐⭐⭐⭐ Industrial Contractor
"These bolts fit perfectly and hold fast under vibration. JIS B1171 standard ensures quality."
— ⭐⭐⭐⭐⭐ Factory Maintenance Supervisor
Buy Cup Head Square Neck Bolts JIS B1171 with Confidence
Looking for top-grade fasteners that comply with global quality benchmarks? The Cup Head Square Neck Bolts JIS B1171 offer:
? Certified strength and safety
?️ Trusted for structural and machine use
⚙️ Precision-manufactured for industrial demand
Whether you need small batches or bulk quantities, these bolts are ready to ship worldwide, with custom coatings and packaging available on request.
? Order your Cup Head Square Neck Bolts JIS B1171 today for fast, secure, and compliant fastening solutions.
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