Cup Head Square Neck Bolts
Standard: DIN 603
Thread Type: Coarse Thread/ Full Thread
Commodity: Cup Head Square Neck Bolts
Also Named: Carriage Bolts
Material: Carbon Steel
Property Class: 4.6, 4.8, 8.8
Diameter: M5, M6, M8, M10, M12, M16, M20
Finish: Plain/ Black/ Zinc Plated/ Hot Dipped Galvanized/ Organic/ Dacromet/ Phosphating/ Cadmium Electroplate/ Nickel Plated
Head Type: Round Head
Head Details: With Square Neck
MOQ: 1000kgs
Lead Time: 30 to 60 days
Product Introduction
AYA Fasteners (Hebei) Co., Ltd. is one of the most experienced manufacturers and suppliers of cup head square neck bolts in China. Please feel free to buy high quality cup head square neck bolts made in China here from our factory. For price consultation, contact us.

As a global supplier of customized fastening solutions, AYA's service process is also as close to customers as AYA's products. From describing needs to follow-up services, AYA will promptly and spare no effort to help customers solve any fastening problems that arise, to eliminate the concern of customers.
Product Description
Standard | DIN 603 |
Thread Type | Coarse Thread / Full Thread |
Commodity | Cup Head Square Neck Bolts |
Also Named | Carriage Bolts |
Material | Carbon Steel |
Property Class | 4.6, 4.8, 8.8 |
Diameter | M5, M6, M8, M10, M12, M16, M20 |
Finish | Plain/ Black/ Zinc Plated/ Hot Dipped Galvanized/ Organic/ Dacromet/ Phosphating/ Cadmium Electroplate/ Nickel Plated |
Head Type | Round Head |
Head Details | With Square Neck |
MOQ | 1000kgs |
Lead Time | 30 to 60 days |
Dimensions Table

Product Details

Product Advantages

Advantages Of Cup Head Square Neck Bolts
1. Carriage bolt has a square shoulder under a rounded head which resists turning when the nut is tightened or removed.
2. Cup head square neck bolts can be used in the construction of docks, swing sets and decks as well as other surfaces where a smooth finish is needed.
3. Carriage bolts fasten metal parts to metal parts or metal to wood.
4. At AYA, we offer a huge selection of carriage bolts for commercial and residential assignments.
5. Our carriage bolts for sale are the perfect way to promote safe working conditions as well as boost productivity on-site for less downtime between projects.
6. AYA strictly follows the international standard during production process, and constantly adjusts our productive technology to meet the market and customers demand.
Quality Inspection

Experienced QC staff can provide customers with accurate quality inspection reports.
All production procedures will be supervised by QC inspectors to ensure that the final products are able to meet customers' expectations.
The QC inspectors are well experienced in the products knowledge as well as the manufacturing techniques. Special instruments are applied to conduct multiple testings to ensure that the final products could meet the requirements of the market and customers.
Packaging & Container Loading

Packaging is important for product preservation as well as the safety. AYA has constantly developing new solutions to keep products intact during the shipment process.
The packaging could be customized according to customer needs. And it would be fully reinforced to prevent unexpected damages during the shipment.
Usage Scenarios

Why Choose AYA?

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