Anchor Bolts Manufacturer
MT.BOLTS manufactures Anchor Bolts, which are heavy-duty fasteners designed to secure structural elements to concrete foundations. These bolts typically feature a threaded end for attaching components and a bent, hooked, or plate-embedded end for embedding into concrete. Anchor bolts are essential in construction, infrastructure, machinery installation, and industrial projects where secure, load-bearing connections to concrete are required. MT.BOLTS offers anchor bolts in multiple styles, sizes, materials, and finishes to suit diverse structural and engineering applications.
- System of Measurement:
Metric (M6–M64) | Imperial (1/4″ to 2.5″) - Length Range:
100 mm to 1500 mm | 4″ to 60″ - Thread Pitch:
Metric (Coarse) | UNC - Thread Type:
Partial thread (typically threaded only on exposed end) - Head/Embedded End Types:
L-Shaped, J-Shaped, Straight with Nut & Washer, Plate Type (Headed), Sleeve Type / Expansion Anchors - Finish Options:
Plain, zinc-plated, hot-dip galvanized, black oxide, passivated, or custom coatings - Standards:
- ASTM F1554 – Grade 36, 55, 105 Anchor Bolts
- ASTM A307 / A325 / A449 – General anchor bolt use
- DIN 529 / DIN 7990 / ISO 898-1 – Metric anchor bolt specifications
- Custom / Project-specific OEM standards
Anchor Bolts Material Types
MT.BOLTS supplies carbon steel, stainless steel, duplex steel, and nickel-based alloy Anchor Bolts , meeting the demanding requirements of chemical, marine, and high-temperature environments, compliant with various international standards.
| Material Category | Common Grades/Models | Description |
| Carbon Steel | ASTM A307, A325, A490 | High strength and cost-effective, suitable for general structures; requires anti-corrosion coating. |
| Stainless Steel | 304 (A2), 316 (A4), 321, 410 | Excellent corrosion resistance; widely used in food, chemical, and construction industries |
| Duplex Stainless Steel | UNS S31803/S32205 (F51), UNS S32750 (F53) | High strength with superior chloride corrosion resistance; used in seawater, petrochemical, and paper industries |
| Monel Alloys | Monel 400, Monel K500 | Excellent seawater corrosion resistance and mechanical strength; used in marine engineering and pump systems |
| Hastelloy Alloys | Hastelloy C276, C22, B2, X | Excellent resistance to strong acids and oxidizing media; widely used in chemical equipment and flue gas desulfurization |
| Inconel Alloys | Inconel 600, 625, 718 | Resistant to high temperature, pressure, and corrosion; used in heat exchangers, aerospace, and nuclear industries |
| Incoloy Alloys | Incoloy 800, 825, 925 | Ideal for high-temperature acidic environments; widely used in petroleum refining and heat treating systems |
| Nickel Alloys | Nickel 200, 201 | Pure or high-nickel alloys with excellent conductivity and alkali resistance; used in electronics and chemical applications |
Anchor Bolts System of Measurement
- Metric Sizes: M6 to M64
- Imperial Sizes: 1/4″ to 2.5″
- Length Range:
- Metric: 100 mm to 1500 mm
- Imperial: 4″ to 60″
- Thread Pitch: Metric (Coarse/Fine) | UNC/UNF
- Thread Type: Partial thread (typically only on exposed end)
Anchor Bolts Common Standards
- ASTM F1554 (Grades 36, 55, 105) – Construction-grade anchor bolts
- ASTM A307 / A325 / A449 – General-purpose steel anchor bolts
- DIN 529 – Foundation bolts with hooks or bends
- ISO 898-1 – Mechanical properties of fasteners
- BS 7419 / BS 8530 – UK standards for anchor bolts
- Custom / OEM Standards – Project-specific specifications
Anchor Bolts Surface Finishes
- Zinc-plated – Corrosion resistance in indoor environments
- Hot-dip galvanized – Excellent protection in outdoor/marine use
- Black oxide – Mild corrosion resistance, often for aesthetic or indoor use
- Passivated – Used on stainless steel bolts to improve corrosion resistance
- Custom Coatings (e.g., PTFE) – Non-stick, chemical-resistant for harsh environments
Why Choose MT.BOLTS
- Material Diversity
- Standardized Production
- Ample Inventory
- Competitive Pricing
- Low-MOQ Customization
Benefits and Limitations of Anchor Bolts
Advantages
- Provide strong, permanent anchoring to concrete foundations
- Suitable for dynamic and static loads
- Versatile designs (L-shaped, J-shaped, headed, sleeve) for different applications
- Wide material selection for corrosion and strength requirements
- Custom lengths and threading available
Disadvantages
- Require precise placement before concrete sets (for cast-in-place types)
- Removal is difficult or impossible once embedded
- Installation errors can compromise structural integrity
- Not ideal for temporary fastening unless using removable expansion anchors
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Anchor Bolts Applications
- Steel structure and column anchoring
- Machinery and equipment foundations
- Light poles, towers, and sign supports
- Bridges and highway infrastructure
- Industrial and power plant installations
- Pre-engineered buildings and modular systems
FAQ About Anchor Bolts
L-bolts, J-bolts, sleeve anchors, wedge anchors, and headed bolts.
Choose based on strength requirements:
- Grade 36 for general use
- Grade 55 for welded structures
- Grade 105 for high-strength applications.
Cast-in-place are embedded before concrete cures; post-installed (e.g., expansion or chemical anchors) are installed after the concrete has set.
Yes, especially in coastal or corrosive environments, stainless steel or hot-dip galvanized bolts are preferred.
Most cast-in-place anchor bolts are not reusable. Removable anchor systems (like mechanical or epoxy anchors) are reusable if undamaged.
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