Locking Header Bolts & Long Bolts Loop Bolt | Supplier
⥠Stop overpaying for unreliable fasteners. We deliver ISO 9001-certified locking header bolts, long bolts, and loop bolts at factory-direct pricing â with OEM/ODM flexibility, fast global shipping, and full traceability from material to delivery.
A 2025 industrial procurement study found that non-certified locking header bolts fail at a rate 37% higher than ISO-compliant equivalents. Each failure costs an average of $4,200 in downtime, replacement labor, and liability.
Supply chain managers report paying 18-22% more for long bolts and loop bolts from traditional distributors who add 3-4 layers of markup. Factory-direct sourcing eliminates this.
Late deliveries and incomplete documentation (missing CE, FCC, RoHS certificates) cause customs delays of 7-14 days at US and EU ports. Boen Fasteners maintains a 98.7% on-time shipping record with full compliance paperwork.
đ Operations Manager, John (US-based construction firm): "We switched to Boen after a header bolt failure caused a $28k crane downtime. Their locking header bolts are now our standard â zero failures in 18 months."
We combine 10+ years of export expertise, factory-direct economics, and full-spectrum quality assurance â so you get better fasteners, lower costs, and zero headaches.
We own the production line from raw material selection (carbon steel, alloy steel, stainless steel 304/316) to heat treatment, plating, and final inspection. This means consistent quality across every batch of locking header bolts, long bolts, and loop bolts.
Need a custom thread length on a loop bolt? A specific locking mechanism for your header bolt? We offer full OEM/ODM capabilities with free design consultation and rapid prototyping (5-7 days).
Standard lead time: 15-25 days for bulk orders. Express option: 7-10 days for urgent projects. We ship via sea (FOB/CIF), air (DDP), and express (DHL/FedEx) with real-time tracking and full customs documentation.
Every product is backed by ISO 9001, CE, RoHS, and FCC certifications. We provide mill test reports, plating thickness certificates, and batch traceability â so your procurement team has full audit-ready documentation.
By eliminating 2-3 intermediary layers, we offer 15-30% lower pricing than equivalent distributors in the US and EU. Volume discounts available for annual contracts and bulk orders (10,000+ units).
From material selection and design to production, packaging, and logistics â one team handles it all. Dedicated account manager assigned to every B2B client, with 24/7 WhatsApp support.
| Parameter | Locking Header Bolt | Long Bolt | Loop Bolt |
|---|---|---|---|
| Material Grades | Carbon Steel (8.8/10.9), Alloy Steel, SS304/316 | Carbon Steel (4.8/8.8), SS304, SS316, Brass | Carbon Steel (8.8), SS304, SS316, Galvanized |
| Thread Sizes | M6 â M30 (UNC/UNF available) | M4 â M48 (UNC/UNF/BSP available) | M6 â M24 (UNC/UNF available) |
| Length Range | 20mm â 200mm | 100mm â 1200mm | 30mm â 300mm (loop diameter: 20-80mm) |
| Plating / Coating | Zinc Plated, HDG, Dacromet, Black Oxide | Zinc Plated, HDG, Nickel Plated, Zinc-Nickel | Zinc Plated, HDG, Yellow Zinc, Black Oxide |
| Tensile Strength | 800 â 1200 MPa (Grade 10.9) | 400 â 800 MPa (Grade 4.8â8.8) | 600 â 1000 MPa (Grade 8.8) |
| Certifications | ISO 9001, CE, RoHS, FCC | ISO 9001, CE, RoHS, FCC | ISO 9001, CE, RoHS, FCC |
| Packaging Options | Bulk (25kg bags), Boxed, Palletized, Custom | Bulk (1m bundles), Boxed, Palletized, Custom | Bulk (20kg bags), Boxed, Palletized, Custom |
đ Note: Custom sizes, materials, and platings available upon request. Contact our engineering team for a free design review.
Locking header bolts used in steel beam connections, column splices, and heavy equipment anchoring. Our long bolts (up to 1200mm) are specified for multi-layer structural joints and tension applications in commercial buildings and bridges.
High-strength long bolts (Grade 10.9) for engine mounts, chassis assemblies, and hydraulic systems. Loop bolts used for towing points, lifting lugs, and cable anchoring on tractors, harvesters, and heavy trucks.
Corrosion-resistant loop bolts (SS316) for solar panel mounting, wind turbine towers, and offshore platforms. Locking header bolts with Dacromet coating for high-corrosion environments (chemical plants, wastewater treatment).
A locking header bolt incorporates an integrated locking mechanism (e.g., nylon patch, deformed thread, or serrated flange) that resists loosening under vibration. Standard bolts rely solely on friction. For applications subject to dynamic loads â such as construction equipment, automotive assemblies, and industrial machinery â locking header bolts provide significantly higher reliability and reduced maintenance intervals.
Our long bolts range from 100mm to 1200mm in standard lengths. Custom lengths beyond 1200mm are available for OEM/ODM orders. We offer UNC, UNF, and metric thread profiles to match your specifications. Minimum order quantity for custom lengths is typically 500 pieces.
A loop bolt features a closed, continuous loop head, while an eye bolt has a drilled hole through a forged head. Loop bolts offer higher load capacity in tension and are preferred for lifting, towing, and anchoring applications where the load direction is variable. Our team can help you select the right configuration based on your load rating, angle, and environment.
All our locking header bolts, long bolts, and loop bolts are manufactured under ISO 9001:2015 quality management systems. We provide CE marking (EU Construction Products Regulation), RoHS compliance, and FCC certification where applicable. We also offer UL certification for specific product lines. Full documentation â including mill test reports, plating certificates, and batch traceability â is provided with every shipment.
Standard lead time: 15-25 working days for bulk orders (10,000+ pieces). Express service: 7-10 working days for urgent orders (additional fee applies). For OEM/ODM custom designs, add 5-7 days for prototyping. We ship via sea (FOB/CIF), air (DDP), or express (DHL/FedEx) â you choose the method that best fits your timeline and budget.
Yes, we provide free samples (up to 5 pieces per product type) for qualified B2B buyers. You only pay for shipping. This allows you to test fit, strength, and quality before committing to a bulk order. Contact our sales team with your requirements and we'll arrange sample dispatch within 3-5 working days.
We accept T/T (wire transfer), L/C (letter of credit), PayPal, and Western Union for international transactions. For established long-term clients, we offer flexible payment terms (e.g., 30% deposit + 70% before shipment, or net 30 for qualified accounts). Minimum order value: $500 USD for first-time buyers. Volume discounts available for annual contracts.
We provide complete customs documentation including commercial invoice, packing list, certificate of origin, bill of lading/airway bill, and all relevant compliance certificates (CE, RoHS, FCC, etc.). Our logistics team has 10+ years of experience shipping to US and EU ports. We ensure correct HS code classification and duty/tax estimation to minimize customs delays. DDP (Delivered Duty Paid) terms are available for buyers who prefer a hassle-free door-to-door experience.

James has spent 18 years in the industrial fastener industry, including 12 years as a quality and design engineer at Boen Fasteners. He has overseen 200+ custom bolt projects for clients in construction, automotive, and energy sectors across 30+ countries. James is a member of the American Society of Mechanical Engineers (ASME) and holds certifications in ISO 9001 auditing and metallurgical testing. He writes to help procurement professionals make informed, cost-effective fastener decisions.
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đ§ Or email us directly: shuan@fastenboen.com | mary@fastenboen.com | grace@fastenboen.com
đĽ Trusted by Industry Leaders Worldwide
Michael Torres
Procurement Director, Torres Construction (USA)
"We've been using Boen's locking header bolts for two major bridge projects. The consistency in tensile strength and on-time delivery have been outstanding. 15% cost savings compared to our previous supplier."
Elena Vogt
Supply Chain Manager, Vogt Agricultural GmbH (Germany)
"The long bolts we ordered for our harvester assembly line were perfectly machined â every thread gauge passed. Boen's OEM service saved us 6 weeks of lead time vs. our previous supplier."
David Kim
Operations Director, Kim Energy Solutions (South Korea)
"We needed SS316 loop bolts for offshore solar platforms. Boen's corrosion test data and full batch traceability gave us confidence. Zero corrosion issues after 14 months in saltwater."