Jul . 31, 2025 04:40 Back to list

Butterfly Bolts Selection Enhanced by GPT-4-Turbo AI Technology

Dive into the evolving landscape of butterfly bolts, their technical parameters, cutting-edge manufacturing processes, and real-world performance—enhanced by industry data, parameter tables, and expert analysis. This guide covers industry trends, product comparison, custom solutions, application cases, standards, and authoritative insights.

1. Industry Trends: The Growing Significance of Butterfly Bolts

Market Growth Overview

The global butterfly bolts market in 2023 reached USD 1.7 billion, projected at a CAGR of 4.9% through 2027 [Markets&Markets, 2023].
Demand surges in energy-efficient construction, industrial assembly, and petrochemical sectors.
Manufacturers are shifting to stainless steel butterfly bolts owing to anti-corrosion compliance & long-term cost benefits.
ISO/ANSI standards are increasingly required for both quality assurance and international interchangeability.

Key Industry Applications

Structural anchoring in building/construction
Pipe & HVAC mounting (energy & utilities)
Machinery assembly in heavy industry
Marine, oil & gas (extreme corrosion environments)
Infrastructure: bridges, tunnels, railway

Recent Technical Developments

Adoption of CNC precision machining, micro-tolerances (±0.02mm)
Eco-friendly, low-carbon stainless alloys (A2, A4 grades)
Automated 100% quality inspection (ISO 898-2, ANSI B18.22)
Expansion wings for higher pull-out resistance

Butterfly Bolts Selection Enhanced by GPT-4-Turbo AI Technology

Typical butterfly bolts used for heavy-duty anchoring applications

2. Understanding Butterfly Bolts, Butterfly Anchor Screws & Stainless Steel Alternatives

Butterfly bolts (also known as expansion butterfly wing anchors or toggle bolts) feature a folding wing mechanism that expands inside hollow substrates, providing high holding power and secure fastening. They are preferred in installations where traditional anchors fail—especially in drywall, concrete, brick, steel structures, and similar environments. Thanks to versatile head designs (slotted, hex, Phillips) and body materials, both butterfly anchor screws and stainless steel butterfly bolts are tailored for industry-specific requirements.

Fact: According to British Stainless Steel Association, A2-70 and A4-80 grades stainless steel butterfly bolts offer 8x longer service life in marine or corrosive industries than carbon steel variants.

Key Technical Parameters & Industry Benchmarking

Type	Main Material	Diameter (mm)	Length (mm)	Thread Pitch (mm)	Max Pull-out Load (N)	Corrosion Resistance	Certifications
Butterfly Bolts	Zinc-plated Carbon Steel	5–16	40–120	0.8–2.0	800–3500	Basic	ISO 898-2, ANSI B18.22
Butterfly Anchor Screws	Carbon Steel/Stainless Steel	6–14	50–110	1.0–1.75	1000–4200	Good (depends on finish)	ISO 3506, DIN 315
Stainless Steel Butterfly Bolts (A2/A4)	304/316 Stainless Steel	6–12	40–100	1.0–1.75	1200–4800	Excellent	ISO 3506-1, RoHS, FDA (food/medical)

3. Manufacturing Process of Butterfly Bolts
(Take Best Expansion Butterfly Wing Anchor as Example)

Raw Material
(Stainless Steel 304/316)

→

Hot/Cold Forging

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CNC Machining
(±0.02mm Precision)

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Surface Treatment
(Passivation/Coating)

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Quality Testing

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Packaging & Shipping

Quality-inspection: Each batch is 100% tested under ISO 898-2 and ANSI B18.22 standards, ensuring mechanical strength, dimension tolerance, anti-corrosion layer, and safe expansion performance.
Surface Treatment: Typically includes electrolytic passivation or high-performance coatings, achieving neutral salt-spray resistance >720 hours.

Reference Manufacturing Video: Butterfly Bolt Forging & Quality Control Demo

4. Data Visualization: Butterfly Bolts Parameter & Best Expansion Butterfly Wing Anchor Comparison

Butterfly Bolts | Common Parameter Ranges

Parameter	Range/Value
Diameter	5-16 mm
Length	40-120 mm
Thread Pitch	0.8-2.0 mm
Expansion Width (Open)	25-48 mm
Ultimate Pull-out Resistance	800-4800 N
Surface Option	Zinc, Nickel, Passivated, Hot Dip Galv.
Service Life	10–25 years (material dependent)

Best Expansion Butterfly Wing Anchor Specification Sheet

Main Body Material	304/316 Stainless Steel
Thread Size	M6, M8, M10, M12
Expansion Length	50, 60, 80, 100 mm
Ultimate Tensile Strength	4800 N (M12, SS316)
Corrosion Resistance	>720 hours salt spray (ASTM B117)
Recommended Substrate	Concrete, Hollow Brick, Drywall, Steel
Certification	ISO 3506, CE, RoHS

View Product Details

Product Performance Comparison (Pull-out Strength vs Market Average)

*Data for comparison based on typical market performance [source: BSSA, ASTM F568].

Material Adoption Pie Chart (2023 Butterfly Bolts Market)

Stainless steel comprises over 40% of the butterfly bolts market by value in 2023.

Longevity of Butterfly Bolts vs. Corrosive Exposure (Salt Spray Test, hours)

316 stainless steel butterfly bolts display >10x higher corrosion endurance compared to standard zinc finishes.

5. Comparing Technical Advantages & Manufacturer Differentiation

Brand/Product	Material Options	Tested Pull-out Resistance (N)	Corrosion Resistance (Salt Spray Hrs.)	Certifications	Global Partners
Best Expansion Butterfly Wing Anchor	304/316 SS, Zinc Alloy	Up to 4800	≥720	ISO, CE, RoHS
Brand X (Europe)	Steel, SS304	3400	320	ISO, DIN	Euroconstruct, EPC
Brand Y (Asia)	Steel, A2	3600	480	ISO, JIS	Hitachi, Samsung C&T

      Key takeaways: Best Expansion Butterfly Wing Anchor demonstrates top-tier anti-corrosion performance, ISO/CE certification, and a proven track record with Fortune 500 clients in petrochemical and infrastructure megaprojects.
    

6. Customization Solutions & Service Commitment

OEM/ODM Production: Support for custom thread, length, expansion sizes (M4~M16), specialized coatings (PTFE, zinc-nickel), and logo engraving.
Industry-Specific Materials: Medical-grade, marine-grade (A4-80), and chemical-resistant alloys available.
Testing & Certification: All products can be 3rd-party tested and accompanied by COC (Certificate of Conformance), ISO and FDA documentation (for food/medical).
Rapid Prototyping: Custom samples can be delivered within 7–12 days upon technical confirmation.
After-sales Support: 24 hour response, global logistics, on-site technical consultation, and up to 5 years warranty.

*More details: Contact technical support or submit RFQ.

7. Real-World Application & Customer Feedback

Petrochemical Pipe Installation

Case: CNCEC’s refinery expansion, 2023 (Yantai, China)
Challenge: Severe chemical atmosphere, rigid QC requirements, 50+ year design life
Solution: Best Expansion Butterfly Wing Anchor M10x100mm (316SS), >4800N pull-out, corrosion resistance—100,000+ units supplied
Impact: Zero failure incidents after one year, labor saving by 33%, 15% total cost reduction (per EPC project report)

Customer Endorsement

“In our offshore platforms, switching to stainless steel butterfly bolts not only slashed the corrosion-maintenance cycle, but also improved installation safety and reliability. Highly recommend for critical systems!”
– Lead Engineer, ChemChina Offshore Division

Other cases: Subway tunnel electrical arch supports (Hong Kong, 2022); Hospital modular ceilings (France, 2021); Wind turbine platforms (Brazil, 2023). National engineering contractor repeated supplier for 7+ years.

8. FAQ – Technical Questions about Butterfly Bolts

1. What materials are recommended for marine/chemical environments?

A4-80 (316 stainless steel) butterfly bolts are industry-standard for outstanding corrosion resistance, suitable for marine, offshore, and chemical processing–refer to ASTM A276, ISO 3506 for molecular details.

2. How do you specify the correct dimension for safe installation?

Follow substrate thickness and anchor expansion specs. For example, a 12mm drywall typically uses an M6x60 butterfly anchor screw. Always refer to the manufacturer’s load chart.

3. Are your bolts compliant to international standards?

All our butterfly bolts are produced under ISO 9001-certified systems and meet ISO 898-2, ISO 3506, DIN 315, or ANSI B18.22 as per order. Custom orders can include CE, RoHS, FDA (for hygienic/medical use).

4. What is the typical pull-out resistance?

Depending on size/material: M8 stainless steel butterfly bolts average 3000–3900N in concrete; zinc alloy variants, approx. 1800–2500N. See our pull-out test chart above.

5. What are the recommended installation standards?

For anchors, follow manufacturer’s torque values, and ASTM E488 or EN 1992-4 for on-site testing. We provide detailed installation manuals with each order.

6. Can the same bolt be reused after removal?

No. Reuse is not recommended—expansion arms may not revert fully, risking performance and safety as per ISO 898-2 guidelines.

7. What warranty and quality assurance is provided?

Standard: 24-month defect warranty on all butterfly bolts; up to 5 years for certified projects. 100% lot traceability, free replacement for any validated defect.

9. Order, Delivery & Customer Support

Typical Lead Time: Stock items ship in 2–4 days; custom production in 12–25 days
Packaging: Export cartons with full traceability; optional eco-friendly packaging
Customer Service: 24/7 technical hotline, video support, bilingual documentation
Warranty: Standard 2-year, up to 5 years (by agreement and special projects)
After-Sale Commitment: Free replacements for any confirmed production defect or transit damage—ISO 2859-1 AQL compliant inspections

Inquire for real-time stock, price, or application advice.

References & Further Reading:

"Corrosion performance of stainless steel fasteners", British Stainless Steel Association. Read here
"Industrial Fasteners Market Analysis", Markets & Markets 2023. View report
"Expansion Anchor Bolt Performance Testing", Construction Fastener Forum. Engineering Tips Forum
"Stainless Steel Bolting—Material Selection & Standards", ASM International Handbook.
"Anchor Bolt Design—Standards and Best Practice", Steel Construction Journal (SCI-355). Steel Construction Wiki

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