What certifications do your products have?

Products have passed ISO9001/2015, GB/T19001-2016, and SGS certificate testing.

What is the maximum load capacity?

Load capacities range from 97.4 KN to 534.6 KN depending on the thread size and grade.

Hex Nuts Class8 Black Oxide M24 DIN6330 High Strength Thick Hexagon Nut Coupling Nut Deep Nut

Name: Hex Nuts Class8 Black Oxide M24 DIN6330 High Strength Thick Hexagon Nut Coupling Nut Deep Nut
Brand: Jinjiang Tagong Hardware Forging Manufacturer Co. Ltd.
SKU: 2047358915

Fujian, ChinaJinjiang Tagong Hardware Forging Manufacturer Co. Ltd.

US$1,550.00

3-4 Tons

US$1,500.00

5-9 Tons

US$1,450.00

10+ Tons

Sample price:US$35.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

DIN6330

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, GOST, BSW, ISO Uni

Grade

8.8

Material Name

40cr/45/42CrMo/35CrMo

Property Class

Class8

Surface Treatment

Black Oxide

Products Usages

Auto Parts/Wheel/Wind Power Equipments/Truck

Transport Package

Carton+Pallet

Specification

25kg/carton

Trademark

as requested by buyer

Origin

China

HS Code

73181600

Production Capacity

1500tons/Month

Key features

Class 8 High Strength: High strength hex nuts available in Class 8, 10, 12 grades for heavy-duty applications.

Custom Material Options: Material can be customized to 40Cr, 45, 42CrMo, or 35CrMo based on customer requirements.

Multiple Surface Treatments: Surface treatment options include Black Oxide, Zinc Plated, Phosphate, Dacromet, and Geomet.

Wide Size Range: Available in various thread sizes from M12 to M30 with specific load capacities up to 534.6 KN.

38 Years Experience: Manufacturer with over 38 years of experience in standard and special fastener production.

Global Certifications: Products certified with ISO9001/2015, GB/T19001-2016, and SGS testing standards.

Flexible Packaging: Standard packing is 25kg/carton or 1.5-2.5tons/pallet, customizable as per buyer request.

OEM/ODM Service: Supports custom specifications and drawings for special fasteners with professional R&D.

Company profile

In-stock CapacityQuality AssuranceManagement CertificationPrivate Mold

Jinjiang Tagong Hardware Forging Manufacturer Co. Ltd.

Fujian, China

Business Type: Manufacturer/FactoryExport Year: 2021-11-10Nearest Port: Xiamen, Ningbo, ShenzhenAverage Response Time: ≤4.09hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CIF

AI-Powered supplier vetting

SummaryJinjiang Tagong Hardware Forging Manufacturer Co. Ltd. is identified as a Chinese manufacturer/factory producing a broad range of fasteners and related hardware. The supplier reports multiple customization options, ODM services, new product development within the past year, OEM service for well-known brands, six production lines, and overseas warehouse and showroom capabilities. Export activity has lasted three years, with 31%–40% of sales from exports. Service lead time is reported as within 15 working days in both peak and off-season periods. However, the available evidence shows no SDK, no overseas agents or branches, no continuous quantity reconciliation for production batches, and several procedures without written records. Financial information is limited to stated years rather than performance figures, and the audit result is recorded as 0 without an explained evaluation interpretation. Customer cases are not specifically identified.

Supplier typeThe supplier is explicitly identified as a manufacturer/factory and limited company based in Fujian, China, with fasteners and related hardware as its primary product range. Its offering profile covers manufacturing, export, service, quality control, R&D, and sustainability information.

R&D capabilityThe supplier reports that it developed new products during the past year and provides ODM services, supporting active product-development capability. It also reports no available SDK, which limits the evidence for software or SDK-based development but does not negate the stated hardware R&D capability.

Production capacityThe supplier is a manufacturer/factory with six production lines and a broad fastener and hardware product portfolio. However, it does not continuously reconcile quantities for each batch or mass-production run, indicating a documented production-control weakness.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM capability, providing direct evidence of broad customization support.