Inflated Unit Price

Distributors add 30-50% markup. Factory-direct butterfly bolts can cut that instantly.

Inconsistent Quality

Mixed batches cause thread failure. Button bolt with ISO 898-1 cert ensures ≤0.1% defect rate.

Hidden Shipping Costs

LCL shipments from China often cost $0.40–$0.70/kg. We consolidate full containers to save you 22% on freight.

Compliance Headaches

Missing CE, RoHS, or UL documents can delay customs. We provide full certification packages with every shipment.

✅ Our Solution: Precision Butterfly Bolts & Button Bolts

From M4 to M24 in carbon steel, stainless steel 304/316, and alloy steel — with zinc, hot-dip galvanized, or Dacromet coating. Every batch is 100% traceable.

• 🔹 Zero-Defect Guarantee — ≤0.1% PPM, backed by ISO 9001 & IATF 16949 line.
• 🔹 OEM/ODM Design — Custom head marking, thread length, and coating in 12 working days.
• 🔹 High-Speed Delivery — 20 ft container in 18 days from order confirmation.
• 🔹 Cost-Effective — Factory-direct pricing saves 30% vs. European distributors.
• 🔹 Full Compliance — CE, UKCA, RoHS, REACH, ASTM F593 included.
• 🔹 ERP Integration — We support EDIFACT, SAP Ariba, and Procore for seamless procurement.

📌 Real-World Application

Used in agricultural harvester arms (UK customer) — button bolt M16×1.5, grade 8.8, HDG coated. 120,000 pcs delivered defect-free.

Agricultural Machinery

Harvesters, balers, sprayers — button bolt M12×1.75 grade 8.8, zinc-nickel coated. 70% less loosening under vibration.

Construction & Structural

Steel frames, scaffolding, formwork — butterfly bolts M16×2.0 hot-dip galvanized. 15-year corrosion resistance.

Energy & Power

Wind turbine towers, solar trackers — button bolt M20×2.5 grade 10.9, Dacromet 500. 100% magnetic particle inspected.

🔹 What is the difference between a butterfly bolt and a button bolt?

A butterfly bolt (also called wing bolt) has two large wings for hand-tightening, ideal for quick assembly/disassembly. A button bolt has a low-profile round head with a hex socket, designed for flush mounting and higher torque applications. Both are available in carbon steel, stainless 304/316, and alloy steel.

🔹 What is the minimum order quantity (MOQ) for butterfly bolts?

Our standard MOQ is 5,000 pcs per size for stock items. For OEM custom butterfly bolts, MOQ is 10,000 pcs. We offer sample orders (50–200 pcs) for qualification at free sample with you only paying shipping.

🔹 How do you ensure quality for button bolt batches?

Every batch follows ISO 9001:2015 procedures. We perform dimensional inspection, hardness test (HRC), tensile test, salt spray test (≥720h), and torque-to-clamp validation. Third-party SGS/TÜV reports available on request.

🔹 What certifications do you provide for export to Europe/USA?

We provide CE (EN 14399), UKCA, RoHS, REACH, ASTM F593, and ISO 9001. For button bolts used in structural applications, we also supply FPC (Factory Production Control) documentation per EN 1090-1.

🔹 What are the typical lead times for butterfly bolts?

Standard sizes (M6–M16): 18–22 days for a 20 ft container. Custom orders: 25–30 days. We offer express service (10 days) for urgent orders with a 10% surcharge.

🔹 Can you help with custom packaging and labeling?

Absolutely. We offer bulk bags, small boxes, shrink-wrapped pallets, and private-label boxes with your logo. Barcode labels with batch traceability are standard. We also support EDI advance ship notices (ASN) for ERP integration.

🔹 What payment terms do you offer?

We accept T/T (30% deposit, 70% before shipment), L/C at sight, and for qualified buyers — net 30 days (subject to credit check). We also support Alibaba Trade Assurance for orders under $50,000.

Markus Weber

Procurement, Müller AG (Germany)

“Button bolt M12×1.75 — 50,000 pcs delivered. Zero defects, perfect threads. The coating uniformity was better than our previous European supplier. We’ve switched 70% of our fastener volume to Boen.”

Sarah Collins

Supply Chain Manager, BuildRight UK

“We needed butterfly bolts with a custom wing shape for quick-release panels. Boen’s engineering team delivered the OEM design in 10 days. Production samples were spot-on. Highly recommend.”

Jean-Pierre Dubois

Ops Director, ÉnergiePro France

“Button bolt M20×2.5 grade 10.9 for wind turbine assembly. The Dacromet coating passed 1,000h salt spray. Logistics were smooth — full container delivered to Le Havre in 21 days. No surprises.”