Bolts
Carriage Bolts Supplier
As a supplier of carriage bolts, we hold ready stock across common sizes and grades for fast turnaround on repeat and project orders.
As a supplier, we act as your ongoing sourcing partner — whether that means matching an existing specification, filling a recurring order schedule, or sourcing a specific grade or finish you can't get reliably elsewhere.
This role suits buyers who've already settled on a specification and need a dependable source for it over time, rather than re-evaluating quality and pricing on every order — the relationship is built around consistency against an agreed baseline.
The square neck under a carriage bolt's head is the whole point of the design: as the nut is tightened, the neck pulls itself into a matching square hole or embeds into timber, stopping the bolt from spinning even though there's nothing to hold a wrench against on top. That self-locking behavior is why carriage bolts remain the standard choice for one-person installation on decks, fences, and playground equipment, where a second wrench simply isn't practical.
Minimum Order — Container Quantity (Approx.)
A standard 20ft container (~20 tons) holds approximately 350,000-500,000 pieces of carriage bolts in common sizes (M8-M10). Exact quantity depends on size and length and is confirmed at quote time.
You don't need a full container to order. Hurain Engitech & Trade — the group Global Fasteners Exports operates under — regularly ships smaller, partial-container (LCL) orders of just a few pallets or boxes for buyers who don't yet need FCL volume, consolidated with other cargo to keep freight cost reasonable.
Specifications
Standards
DIN 603, ISO 8677, ANSI/ASME B18.5.
Size range
M6 to M20 metric; 1/4" to 3/4" imperial.
Head
Round head with square neck for anti-rotation.
Finish
Hot-dip galvanized, zinc plated, or plain.
Applications
Timber & deck construction
Structural timber connections requiring a flush, tamper-resistant head.
Playground & outdoor structures
Public structures where a smooth exposed head reduces injury risk.
Fencing & gates
Metal fencing and gate hardware.
Agricultural equipment
Trailer decking and equipment guards.
Materials Available
Steel
Corrosion-resistant
Galvanizing thickness and dimensional tolerance are verified against DIN 603 / ISO 8677 before shipment.
Our Process
- 1
Spec confirmation
Confirm size, length, and finish requirement.
- 2
Cold heading
Square-neck forming and round-head cold heading.
- 3
Galvanizing/plating
Hot-dip galvanizing or zinc electroplating for corrosion protection.
- 4
Export packing
Bulk boxes or bins suited to hardware distribution and container loading.
HS Code & Customs Classification
Most fasteners fall under HS Chapter 73 (articles of iron or steel) or Chapter 74/76 for brass and aluminum items — the exact 8-10 digit subheading depends on the specific product and material. We include the HS code on the commercial invoice; confirm the applicable import duty with your customs broker, since rates vary by country and trade agreement.
Countries We Cover
Frequently Asked Questions
Related Products
Get a quote — Carriage Bolts Supplier
Send your product list, quantities, and destination port for a quote within 1-2 business days.