Carriage Bolt Manufacturer
Fasteners India is a trusted Carriage Bolts manufacturer based in Kolkata, serving customers across West Bengal, Odisha, Assam, Chhattisgarh, Jharkhand, Bihar, Maharashtra, Telangana, Delhi, Meghalaya, Tamil Nadu, Uttar Pradesh & Karnataka. Our Carriage Bolts are designed to deliver secure, tamper-resistant fastening for wood-to-wood and wood-to-metal applications.
About Our Operations
A reputable provider of fastening solutions, Fasteners India has state-of-the-art production facilities and a strong dedication to quality. Our specialty is manufacturing Carriage Bolts that satisfy project-specific specifications as well as industry norms.
What Are Carriage Bolts?
Carriage bolts feature a round, smooth head with a square neck beneath the head that prevents the bolt from turning once installed. They are widely used in timber construction, fencing, furniture, and outdoor structures.
Key Advantages:
- Smooth head for safety and clean appearance
- Square neck prevents rotation during tightening
- Strong and durable fastening
- Corrosion-resistant finish options
- Ideal for outdoor and structural applications
Carriage Bolt Variants We Manufacture
Fasteners India manufactures and supplies:
- Standard carriage bolts
- Short neck and long neck carriage bolts
- High tensile carriage bolts
- Stainless steel carriage bolts
- Custom-designed carriage bolts as per drawings
Materials & Finishing Options
Our carriage bolts are manufactured using:
- Mild Steel (MS)
- Carbon Steel
- Stainless Steel (SS 202, SS 304, SS 316)
Available finishes include:
- Hot Dip Galvanized (HDG)
- Zinc Plated
- Black Finish
- Special coatings on request
Manufacturing & Quality Control Process
- Selection of high-quality raw materials
- Forging and shaping of bolt heads
- Forming of square neck section
- Precision thread rolling
- Surface finishing and corrosion protection
- Dimensional inspection and mechanical testing
- Final packaging and dispatch
Technical Specifications Chart
Bolt Size | Length Range | Material | Grade Options | Finish |
M6 | 20 – 100 mm | MS / SS | 4.6, 5.6 | Zinc plated, Black |
M8 | 25 – 150 mm | MS / SS | 4.6, 5.6, 8.8 | Zinc plated, Black |
M10 | 30 – 200 mm | MS / SS | 5.6, 8.8 | Zinc plated, HDG |
M12 | 40 – 250 mm | MS / SS | 8.8 | Zinc plated, HDG |
M16 | 50 – 300 mm | MS / SS | 8.8 | HDG, Black |
(Custom sizes, grades, and finishes available on request.)
Common Applications
- Wooden furniture and fixtures
- Fencing and gates
- Playground equipment
- Timber structures and decking
- Outdoor installations
- General construction and fabrication
Why Fasteners India Is Your Best Choice
- In-house manufacturing with strict quality control
- Durable and reliable fastening solutions
- Competitive pricing
- Bulk supply and project order capability
- Timely delivery across Eastern and Central India
- Custom specifications and packaging options
Areas We Serve
Fasteners India supplies carriage bolts across:
West Bengal, Odisha, Assam, Chhattisgarh, Jharkhand, Bihar, Maharashtra, Telangana, Delhi, Meghalaya, Tamil Nadu, Uttar Pradesh & Karnataka.
Get in Touch with Fasteners India
For dependable Carriage Bolts manufacturing in Kolkata, contact Fasteners India today for pricing, technical details, and project support.