What are the payment terms and trade terms?

Payment terms include T/T, L/C, Western Union, and PayPal. Trade terms include FOB, CIF, CFR, CNF, EXW, DDU, and DDP.

How long is the average lead time for delivery?

The average lead time is within 15 workdays for both peak and off-season periods.

Can you provide samples or handle non-standard products?

Yes, samples are available for free, and we accept drawings, photos, or samples to produce special and non-standard products.

Grade 12 9 Carbon Steel Black Fine Thread Allen Bolts

Name: Grade 12 9 Carbon Steel Black Fine Thread Allen Bolts
Brand: OPPU (Tianjin) Industrial Parts Co., Ltd.
SKU: 2314909415

Tianjin, ChinaOPPU (Tianjin) Industrial Parts Co., Ltd.

US$0.12

10,000 Pieces

Product specifications

M

Product profile

Customization

Available

Material

High Strength Steel

Type

Hexagon Head

Model NO.

DIN912 M6-M12 Black Fine Thread Hex Hexagon Socket

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

8.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Hot Galvanizing

Specification

M3, M4, M6, M8-M20

HS Code

7415290000

Production Capacity

5000ton/Year

Key features

Full-Length Thread Design: Thread extends across entire bolt length for versatile engagement and adjustable clamping.

High Strength Grades: Forged from carbon/alloy steel with heat treatment, offering grades 8.8, 10.9, and 12.9.

Strict Standard Compliance: Adheres to DIN 933/931, ASME/ANSI, and ISO standards for high interchangeability.

Wide Diameter Range: Available in diameters from M4 to M64 and 1/4' to 2 1/2' for diverse applications.

Extensive Finish Options: Options include Zinc Plated, Hot Dip Galvanizing, Black Oxide, and PTFE for corrosion resistance.

Versatile Industrial Application: Ideal for machinery, construction, oil & gas, wind energy, and automotive sectors.

Customization Support: Accepts drawings, photos, or samples for special and non-standard product requirements.

Reliable Supply Capacity: Supply ability of 1000 tons per month with timely delivery within 15 workdays.

Company profile

Cooperated with Fortune 500Self-brandedFast DeliveryQuality Assurance

OPPU (Tianjin) Industrial Parts Co., Ltd.

Tianjin, China

CertifiedBusiness Type: Manufacturer/Factory & Trading CompanyExport Year: 2025-06-01Nearest Port: tianjinAverage Response Time: ≤0.34hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CIF

About Our Factory & Business Background

AddressTianjin Xiqing Automobile Industrial Zone (Zhangjiawo Industrial Zone), No. 11 Taijin Road, Zone 1, Tianjin, China

Plant Area2834 square meters

Number of Employees34

Registered Capital10,000,000 RMB

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity1000 pcs

Supply Chain Partners200

Our Production Capability & Technical Expertise

Main ProductsHardware Fastener, Bolts, Nuts, Screws, Washer, Industrial Parts, Pins, Studs

Our Industry Experience & Global Business Record

Year of Establishment2012-08-06

Main MarketsAfrica, Domestic

Repeat Buyers Choice80%~100%

Number of Foreign Trading Staff3

Overseas Agent/BranchNo

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015, ISO45001:2018, ISO14001, Others

Cooperated with Fortune 500Yes

Product Q&A

Q:What standards do these hex bolts comply with?

The bolts adhere to rigorous standards including DIN 933/931, ASME/ANSI B 18.2.1, IFI 149, ISO 4014/4017, and others.

Q:What materials and grades are available?

Materials include Carbon Steel, Alloy Steel, Stainless Steel (A2-70, A4-80), and Brass. Grades range from 4.8 to 12.9 and SAE J429 Gr.2, 5, 8.

Q:What is the available size range for diameter and length?

Diameters range from M4 to M64 (1/4' to 2 1/2'), and lengths are available up to 800mm or 30 feet.

Q:What surface finish options are provided?

Options include Plain, Black Oxide, Zinc Plated (Clear/Blue/Yellow/Black), Hot Dip Galvanizing, Nickel, Chrome, PTFE, Dacromet, and Magni.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 1000 pcs, though it can be adjusted according to customer demand.

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