Are you able to provide samples with specific surface treatments?

Yes, samples with surface treatments like Black Oxide are available upon request.

How should I request a quote?

Please contact us to re-quote the exact price before placing an order due to unstable material prices.

Black M33 Heavy Nuts High Strength GB6170 Hex Nut

Name: Black M33 Heavy Nuts High Strength GB6170 Hex Nut
Brand: Jinjiang Tagong Hardware Forging Manufacturer Co. Ltd.
SKU: 1983323345

Fujian, ChinaJinjiang Tagong Hardware Forging Manufacturer Co. Ltd.

US$0.05

30,000-49,999 Pieces

US$0.03

50,000-99,999 Pieces

US$0.01

100,000+ Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

GB6170- M33- Class - Black

Connection

Common Bolt

Head Style

Hexagonal

Standard

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

Grade

8.8

Material Name

Steel 45

Property Class

Class 6/8/10/12

Surface Treatment

Black Oxide

Thread Tolerance

6h /6g

Transport Package

Pallet+Carton

Specification

25kg/carton

Trademark

as requested by buyer

Origin

China

HS Code

73181600

Production Capacity

2000000PCS/Month

Key features

High Strength Grade 8.8: Manufactured with Carbon Steel meeting GB6170 standard for heavy-duty applications.

Customizable Material Options: Available in Steel 45, 40Cr, 35CrMo, and 42CrMo to suit specific mechanical needs.

Diverse Surface Treatments: Options include Plain+oil, Zinc Plated, Black Oxide, Phosphate, Dacromet, and Geomet.

Multiple Class Grades: Offered in Class 6, 8, 10, and 12 to match various strength requirements.

Wide Standard Compliance: Meets DIN, ANSI, GB, JIS, GOST, BSW, and ISO Uni standards.

35 Years Manufacturing Experience: Established in 1985 with a 60,000 sqm facility and integrated hot forging process.

ISO and SGS Certified: Certified with ISO9001/2015, GB/T19001-2016, and SGS certificate test.

Flexible Customization: Material and surface treatment can be replaced according to buyer requirements.

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: ≤4.22hTerms 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.