Can fasteners be packed separately with clear labels?

Yes. Fasteners can be packed by item, size, or project, with clear labeling for easy identification and site use.

Do you provide material certificates or inspection records?

Yes. Material certificates and inspection records are available upon request. Our quality system is ISO 9001 certified.

How soon can you respond after receiving our list or drawings?

We usually respond with technical feedback or quotation within 24 hours after receiving your information.

Black Coated Thread Stud Bolt GB T 9125.2 Class Designated Flange Connection

Name: Black Coated Thread Stud Bolt GB T 9125.2 Class Designated Flange Connection
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2265454175

Zhejiang, ChinaNingbo Yinzhou Sokun Import and Export Co., Ltd.

US$0.10

1,000-4,999 Pieces

US$0.09

5,000-9,999 Pieces

US$0.08

10,000-49,999 Pieces

US$0.06

50,000+ Pieces

Product profile

Customization

Available

Material

Stainless Steel

Type

Hexagon Head

Model NO.

GB T 9125.2 - 2020

Connection

Common Bolt

Head Style

Round

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

4.8/6.8/8.8/10.9/12.9

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Passivation, Zinc Plating, Black, Plainhdg, Yellow

Standards

DIN912

Finished

Passivation, Zinc Plating, Black, Plainhdg, Yellow

Certificate

ISO9001

Selling Units

Building, Industry, Machinery

Package

Customer'require

Delivery Time

15-30

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

Allen Bolt

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

High-Performance Flange Design: Reliable load-bearing design meeting GB/T 9125.2 Class requirements for high-pressure assemblies.

Full OEM Customization: Precise diameters, lengths, and thread forms (UNC, UNF, Metric) per customer specs or standards.

Advanced Corrosion Resistance: Black coating enhances durability in industrial environments with options like Zinc Plating and Passivation.

Wide Material & Grade Range: Available in Stainless Steel and Carbon Steel with grades 4.8 to 12.9.

Global Standard Compliance: Meets DIN, ANSI, GB, JIS, BSW, and GOST standards for international compatibility.

Precision Cold Forging: Ensures dimensional accuracy, high tensile strength, and consistent thread engagement.

Flexible Order Support: Supports trial orders, mixed specs, and small to medium batch production.

ISO 9001 Certified Quality: Quality system certified with inspection records and material certificates available.

Company profile

High Repeat Buyers ChoiceODM ServicesR&D CapabilitiesProduction Process Visualization

Ningbo Yinzhou Sokun Import and Export Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 15 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤4.09h

About Our Factory & Business Background

AddressYinzhou District, Ningbo, Zhejiang, China

Plant Area1927 square meters

Number of Employees41

Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: one month, 1-3 months Off Season Lead Time: one month

Minimum Order Quantity1 Kg

Supply Chain Partners213

Our Production Capability & Technical Expertise

Main ProductsScrew, Bolt, Washer, Nut, Threaded Rod

Production Lines1

Production MachinesPunching Machine, Riveting Machine, Thread Rolling Machine, Bench Lathe, Laser Marking Machine

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2010-02-10

Main MarketsNorth America, South America, Europe, Southeast Asia/ Mideast, East Asia(Japan/ South Korea)

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff17

Overseas Agent/BranchNo

Our Certifications, Standards & Industry Recognition

Cooperated with Fortune 500No

Product Q&A

Q:Do you support custom and non-standard fasteners?

Yes. We specialize in non-standard fasteners manufactured according to drawings, samples, or technical requirements, with tolerance control applied.

Q:Can you supply mixed fasteners based on a BOM or item list?

Yes. We are experienced in handling mixed fastener lists for engineering and project orders. Different items can be combined in one order and one shipment.

Q:What information is required for quotation?

You can send us your BOM list, drawings (PDF / CAD / STEP), or samples. We review items one by one and provide a clear quotation.

Q:Do you accept small or medium batch orders?

Yes. We support prototype, small and medium batch production, especially for custom and non-standard fasteners.

Q:How do you ensure quality for mixed and custom orders?

Each item is inspected during production and before packing. Our quality system ensures accuracy and consistency for mixed fastener orders.