What materials are used for the U bolts?

Materials include 40Cr (SAE5140), 35CrMo (SAE4135), and 42CrMo (SAE4140).

Raw Steel Round 3 Inch Trailer Leaf Spring U-Bolt with Nuts

Name: Raw Steel Round 3 Inch Trailer Leaf Spring U-Bolt with Nuts
Brand: Quanzhou Chaoyang Autoparts Co., Ltd.
SKU: 1923139591

Fujian, ChinaQuanzhou Chaoyang Autoparts Co., Ltd.

US$0.72

1 Piece

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Standard

Grade

10.9

Model NO.

CYS001018

Application

Auto Parts, Truck Trailer Parts

Finish

Hot Galvanizing

Packaging Unit

1-2 PCS

Unit Weight

1.5

Color

Brown

Lead Time

30 Days

Width

92mm

Legth

500mm

Diameter

20mm

Shape

Square

Finishing

Bake Painting

Transport Package

Ship by Sea

Specification

10.9 U BOLT

Trademark

Origin

China

HS Code

7318151001

Production Capacity

100000PCS/Month

Key features

High Strength Grade: Available in Grade 10.9 and 12.9 with hardness HRC32-42 for durability.

Customizable Colors: Support any color customization to meet specific branding or identification needs.

Wide Size Range: Over 800 different sizes of U bolts, center bolts, and wheel bolts available.

Fast Lead Time: Quick production and delivery within 7-10 working days for standard orders.

Low MOQ: Minimum order quantity as low as 10 pcs for U bolts to reduce entry barriers.

Quality Assurance: Pre-production samples and strict final inspections before shipment ensure quality.

OEM Service: ODM and OEM services available with customization from samples or designs.

Versatile Application: Suitable for heavy-duty trucks, trailers, and suspension systems of major brands.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceExhibition ExperienceSelf-branded

Quanzhou Chaoyang Autoparts Co., Ltd.

Fujian, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 10 years CertifiedNearest Port: Xiamen PortAverage Response Time: ≤10.09h

AI-Powered supplier vetting

SummaryQuanzhou Chaoyang Autoparts Co., Ltd. is a China-based limited-company manufacturer established in 2013, with 29 employees and automotive-parts-related business activities. It reports two manufacturing lines in one capacity record and three operated production lines in another, plus 6–10 quality-control staff. The supplier offers ODM services and in-stock capacity, but reports no new products in the past year, no SDK, and no OEM service for popular brands. Manufacturing controls show weaknesses: no valid manufacturing-capacity contract with its affiliated subcontractor, no ongoing batch quantity reconciliation, and no outsourcing SOP. Overseas support is limited, with no overseas warehouse, showroom, agent, or branch, and no reported offline trade-show participation. Financial records are identified for 2022–2024, but no financial results are provided. No certifications or customer cases are evidenced.

Supplier typeThe supplier is identified as a manufacturer and limited company based in Quanzhou, Fujian, China, established in 2013. Its stated scope includes automotive-parts manufacturing, remanufacturing, wholesale, retail, and mechanical component processing.

After-Sales capabilityThe supplier has in-stock service capacity and accepts several quotation and payment terms, but has no overseas warehouse, showroom, agent, or branch, serves zero stated overseas countries, and reports no written service-capability procedures or maintained records. This indicates limited documented and overseas after-sales infrastructure.

Production capacityProduction resources include two reported manufacturing lines, three operated production lines in another record, and 6–10 quality-control staff. However, the supplier reports no valid manufacturing-capacity contract with its affiliated subcontractor, no continuous batch quantity reconciliation, and no outsourcing SOP, creating explicit process-control deficiencies.

Customization capabilityThe supplier explicitly provides ODM services and operates in automotive-parts manufacturing and mechanical component processing, which supports customization-related capability. However, no detailed customization scope, engineering resources, or delivery examples are provided.