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.

Competitive export pricing
The best price on carriage bolts for buyers worldwide
Global Fasteners Exports provides competitive export prices for worldwide customers, below the average wholesale price, because we buy in volume directly from our partner factories. With 16+ years of experience, we are honored to export to 222+ countries and to cooperate with 10,000+ customers around the world. Are you looking for carriage bolts for your brand or wholesale business worldwide? Global Fasteners Exports is your best choice. Carriage bolts are produced in steady batches, which keeps the price per piece low, and neck, length and galvanizing can be customized. Minimum order 10,000 pieces, or a half container or a full container as per your requirement. Customized available.
Reviewed by Khalil Syed, Founder, Hurain Engitech & Trade · Last updated
Factory-direct
Priced below the average wholesale rate
16+
Years of experience
222+
Countries we export to
10,000+
Customers worldwide
10,000 pcs
Minimum order, or half / full container
Minimum order and container quantity
Minimum order
10,000 pcs
or half / full container, as per your requirement
Half container (20ft)
175,000-250,000 pcs
Full container (20ft)
350,000-500,000 pcs
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.
The minimum order is 10,000 pcs, so you don't need a full container to order: half-container and smaller LCL orders are available as well. 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.


