Fully Threaded Steel Rod M6 M7 M8 - Quality Metal Fasteners from China Suppliers & Factory
Specifications
| Parameter | Range / Options |
| Diameter | M3 – M64 (metric) 1/4" – 2-1/2" (inch series) |
| Length | 1 m – 6 m (standard: 3m, 6m) Custom lengths available |
| Thread Pitch | Coarse (standard) or fine pitch per application requirements |
| Thread Direction | Right-hand (standard) Left-hand available for special applications |
Material & Finish Options
| Material Type | Standard | Common Grades | Finish Options |
| Carbon Steel | ASTM A307 | Grade A (general purpose) | Plain, Oiled, Zinc Plated, HDG |
| ASTM A193 | Grade B7 (high strength) | Plain, Black Oxide | |
| DIN 975 / 976 | 4.8, 5.8, 8.8, 10.9, 12.9 | Various | |
| ISO 898-1 | Class 4.6, 4.8, 5.8, 8.8, 10.9 | ||
| Stainless Steel | ASTM A193 / A320 | B8 (304), B8M (316) | Plain, Passivated |
| DIN 975 / 976 | A2 (304), A4 (316) | Plain | |
| Galvanized | ASTM A153 / A123 | Various base grades | Hot-Dip Galvanized (HDG) |
| Brass / Bronze | ASTM B16 / B124 | C36000, C46400 | Plain |
| Nylon / Plastic | Various | Nylon 6/6, PVC | Colored options |
Features
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Continuous ThreadingFull-length threads allow cutting to any length and provide maximum engagement with nuts and couplings anywhere along the rod.
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Versatile ConnectionCan be used with hex nuts, coupling nuts, flange nuts, wing nuts, or directly threaded into tapped holes.
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Cut-to-Length FlexibilityEasily cut to desired length using standard tools without thread damage.
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High Tensile StrengthAvailable in multiple strength grades to match application requirements.
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Corrosion ResistanceVarious material and coating options suit indoor, outdoor, and harsh environments.
Applications
🔧 Overhead Suspension Systems
Threaded rods are extensively used to suspend HVAC equipment, ductwork, piping, electrical conduits, and cable trays from ceiling structures using beam clamps and hanger assemblies.
🔧 Pipe and Conduit Supports
Combined with pipe clamps, clevis hangers, and trapeze systems, threaded rods provide adjustable vertical support for plumbing, fire protection, and mechanical piping.
⚓ Anchoring and Fastening
Used with expansion anchors or chemical anchors to secure equipment, machinery, structural steel, and building components to concrete floors and walls.
🏗️ Structural Bracing
Employed as diagonal tension rods for seismic bracing, wind bracing, and stabilization of structural frames and equipment racks.
⚡ Electrical and Mechanical Equipment Mounting
Support motors, pumps, fans, transformers, switchgear, and control panels with adjustable-height mounting solutions.
🏛️ Formwork and Concrete Construction
Used as tie rods for concrete formwork systems, providing tension resistance between opposing form faces during concrete placement.
🛋️ Furniture and Fixture Manufacturing
Serve as adjustable legs, connectors, and structural elements in industrial shelving, workbenches, display fixtures, and custom fabrications.
🚗 Automotive and Transportation
Applied in engine mounts, exhaust system hangers, and chassis component connections where vibration resistance is required.
⛵ Marine and Offshore
Stainless steel grades (316) provide corrosion resistance for saltwater environments in shipbuilding, docks, and offshore platforms.
☀️ Renewable Energy
Used in solar panel mounting structures, wind turbine tower connections, and hydroelectric equipment supports.
Frequently Asked Questions
1 What is a threaded rod and how is it different from a bolt?
A threaded rod (also called an all-thread rod or stud) is a long fastener with continuous threads along its entire length, with no head. Unlike a bolt, which has a head on one end and threads on the other, a threaded rod can be cut to any length and used with nuts on both ends, making it ideal for through-bolting, suspension, and structural applications.
2 What materials are threaded rods available in?
Threaded rods are available in a wide range of materials including carbon steel (grades 4.8 to 12.9), stainless steel (A2/304 and A4/316), galvanized steel (hot-dip galvanized), brass, bronze, and nylon/plastic. The choice of material depends on the required strength, corrosion resistance, and environmental conditions of the application.
3 Can threaded rods be cut to custom lengths?
Yes. One of the key advantages of threaded rods is their cut-to-length flexibility. They can be easily cut using a hacksaw, angle grinder, or pipe cutter without damaging the thread profile. Standard lengths of 1 m, 3 m, and 6 m are commonly available, and custom lengths can also be ordered for specific project requirements.
4 What is the difference between coarse and fine thread pitch on a threaded rod?
Coarse thread pitch is the standard option and is suitable for most general-purpose fastening applications. It is easier to assemble and more tolerant of minor damage. Fine thread pitch offers greater tensile strength and is preferred in applications requiring precise adjustment, higher load capacity, or resistance to loosening under vibration, such as in automotive and precision machinery.
5 Which grade of threaded rod should I use for outdoor or corrosive environments?
For outdoor or mildly corrosive environments, zinc-plated or hot-dip galvanized (HDG) carbon steel threaded rods are commonly used. For more demanding environments such as coastal, marine, or chemical exposure, stainless steel A4 (316) is recommended due to its superior chloride and corrosion resistance. Nylon or plastic rods are suitable for non-structural, chemical-resistant applications.
6 What types of nuts are compatible with threaded rods?
Threaded rods are compatible with a variety of nuts including standard hex nuts, heavy hex nuts, coupling nuts (used to extend rod length), flange nuts, wing nuts, and lock nuts. They can also be threaded directly into tapped holes in structural components. Always ensure the nut material and thread specification match the rod for proper load transfer and corrosion compatibility.