TOBO GROUP LTD
| Payment Terms | T/T, Western Union |
| Supply Ability | 15tons per month |
| Delivery Time | 15-30 Workdays |
| Packaging Details | Standard Shipping Package |
| Product name | Countersunk Carriage Bolts |
| Drive Size | 4mm |
| Thread | Full thread |
| Grade | 4.8/ 8.8/ 10.9/ 12.9 Ect |
| Finish | Zinc Plated |
| Headtype | Countersunk |
| Keyword | Carriage Bolt,bolt nut |
| Material | Steel |
| Overalllength | 50mm |
| Brand Name | TOBO |
| Model Number | Countersunk Carriage Bolts |
| Certification | ISO/TUV/SGS |
| Place of Origin | Shanghai, China |
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Product Specification
| Payment Terms | T/T, Western Union | Supply Ability | 15tons per month |
| Delivery Time | 15-30 Workdays | Packaging Details | Standard Shipping Package |
| Product name | Countersunk Carriage Bolts | Drive Size | 4mm |
| Thread | Full thread | Grade | 4.8/ 8.8/ 10.9/ 12.9 Ect |
| Finish | Zinc Plated | Headtype | Countersunk |
| Keyword | Carriage Bolt,bolt nut | Material | Steel |
| Overalllength | 50mm | Brand Name | TOBO |
| Model Number | Countersunk Carriage Bolts | Certification | ISO/TUV/SGS |
| Place of Origin | Shanghai, China | ||
| High Light | countersunk carriage bolts for outdoor furniture ，secure carriage bolts with maximum bearing ，heavy-duty carriage bolts professional strength | ||
Product Description
A hybrid fastener engineered for strength and a seamless finish. The countersunk carriage bolt delivers the non-rotational security of a traditional carriage bolt with the smooth, flush surface of a countersunk head, making it ideal for projects where safety and aesthetics converge.
Product Explanation
This bolt features a flat, conical head that sinks into a pre-drilled countersink hole. Its defining square neck section beneath the head embeds into the material during installation, locking it firmly in place to prevent spinning while the nut is tightened, resulting in a permanent, neat, and snag-free connection.
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Primary Uses
Designed for robust, flush fastening in wood and similar materials.
Woodworking projects requiring invisible joints (furniture, cabinetry).
Deck construction, fencing, and outdoor structures.
Trailers, wagon beds, and playground equipment for hazard-free surfaces.
Architectural timber framing and custom fabrications.
Core Advantages
Safe, Professional Finish
Eliminates protruding hardware, removing trip and catch hazards.
Creates a smooth, visually appealing surface for a completed look.
Reliable and Efficient Installation
Square neck ensures immediate bite, preventing spin for easy one-person assembly.
Provides inherent alignment and a stable grip during tightening.
Durable and Adaptable Performance
Corrosion-resistant options ensure longevity in outdoor or demanding environments.
High-strength construction supports structural loads and resists loosening from vibration.
Key Functions
Positive Mechanical Lock
The square neck mechanically keys into the base material to absolutely prevent rotation.
Flush-Mount Capability
The head design allows it to sit entirely within a countersunk hole, achieving a level surface.
High-Clamp Force Connection
Functions as a through-bolt to create a powerful, shear-resistant joint when paired with a nut.
FAQ
1. Are you trading company or manufacturer ?
We are manufacturer ,You can see the Alibaba certification.
2. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
5000000-6000000
Ecer Certification：
Verified Supplier
TOBO GROUP LTD is a professional fastener manufacturer and exporter in China. We produce various types of fasteners (include non-standard) in GB, DIN, BS, ANSI/ASME, IFI, ISO, and JIS with 300 tons of monthly productivity. Our main products are bolts, nuts, screws, threaded rods, plain was... TOBO GROUP LTD is a professional fastener manufacturer and exporter in China. We produce various types of fasteners (include non-standard) in GB, DIN, BS, ANSI/ASME, IFI, ISO, and JIS with 300 tons of monthly productivity. Our main products are bolts, nuts, screws, threaded rods, plain was...
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