Hot Forging
Large bolt head forming for heavy hex bolts, anchor bolts, and custom fasteners.
Large Diameter & Extra Long Bolt Manufacturer
Factory-Manufactured Large Diameter & Extra Long Bolts for Industrial Projects
FASNA supplies M16-M64 large diameter bolts and 80-1000mm extra long bolts for steel structure, wind power, bridge, petrochemical, power plant, and heavy machinery projects.
M16-M64large diameter range
80-1000mmextra long bolt capability
Grades up to 12.9available according to order requirements
Custom Manufacturingstandard or drawing-based production
Core manufacturing capabilities
Controlled production for heavy-duty fasteners
From RFQ review to packing, FASNA focuses on large size, long length, grade, thread, surface treatment, and export packing requirements.
Heat Treatment
Available according to order requirements for high strength grades.
Thread Processing
Full thread, partial thread, stud bolts, threaded rods, and long bolt threading.
Surface Treatment
Hot dip galvanizing, zinc plating, black finish, dacromet, and PTFE coating.
Main product categories
Priority range for industrial project buyers
The product structure keeps the focus on large diameter bolts, extra long bolts, heavy hex bolts, stud bolts, and anchor bolts.
Large Diameter Bolts
M16-M64 bolts for steel structure, machinery, bridge, and power projects.
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Heavy Hex Bolts
Heavy head dimensions for high-load structural and machinery connections.
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Anchor & Foundation Bolts
Long and large anchor bolts for concrete foundations and equipment bases.
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Custom Fasteners
Custom bolts, threaded components, nuts, washers, and project assemblies.
View DetailsLarge bolt advantage
Built for procurement where dimensions and reliability matter
Large and extra long bolts require careful review of length, thread, grade, surface treatment, packing, and destination requirements before quotation.
- M36, M48, and other large sizes can be reviewed by drawing or standard.
- Extra long bolts can be quoted with full thread, partial thread, or custom thread length.
- Matched nuts and washers can be packed with the bolt order.
- Third-party inspection can be arranged when required.
Secondary supply range
Complete Industrial Fastener Supply
Related products can be quoted with the main bolt order to simplify purchasing and shipment coordination.
Factory manufacturing process
Factory-backed manufacturing, export-ready service
Manufacturing Base: Hebei Zhengxiang Fastener Manufacturing Co., Ltd. Location: Yongnian, Handan, Hebei, China.
Hot Forging
Heavy bolt head forming for industrial fasteners.
Heat Treatment
Available according to order requirements.
Thread Processing
Thread processing for bolts, studs, and rods.
Surface Treatment
HDG, zinc plating, black, dacromet, and PTFE.
Quality Inspection
Dimensions, thread, appearance, and coating checks.
Export Packing
Project packing, labels, crates, and loading support.
Quality control
Inspection points for procurement confidence
Quality requirements are confirmed by order. MTC and order documents can be prepared according to requirements, and third-party inspection can be arranged when required.
Industries served
Industrial fasteners for demanding environments
Steel StructureLarge bolts, heavy hex bolts, nuts, and washers.
Wind PowerHigh strength bolts, studs, and long fastener assemblies.
Bridge & InfrastructureHot dip galvanized bolts, anchor bolts, and foundation bolts.
PetrochemicalStud bolts, nuts, washers, and corrosion-resistant finishes.
Power PlantsHeavy-duty fasteners for installation and maintenance.
Heavy MachineryCustom bolts and threaded components for equipment manufacturing.
Factory proof
Manufacturing presence in Yongnian, Handan, Hebei
FASNA presents factory-backed production with export-ready communication. Export Company: Hebei Fasna Import & Export Trading Co., Ltd.
- Manufacturing Base: Hebei Zhengxiang Fastener Manufacturing Co., Ltd.
- Large diameter and extra long bolt production focus.
- Hot forging, heat treatment, thread processing, quality inspection, and export packing.
- RFQ review for drawings, standards, coating, packing, and destination port.
Send your industrial fastener RFQ
Share size, length, grade, surface treatment, standard or drawing, quantity, destination port, and packing requirement.