What is the minimum order quantity (MOQ)?

The minimum order quantity is 5000 pieces.

What are the payment terms?

We accept T/T, LC, D/P, PayPal, Western Union, and small-amount payments.

What is the typical lead time for orders?

The lead time is mostly 15-20 days. During peak season, it is within 15 workdays, and off-season is also within 15 workdays.

High-Quality Black Phosphate Hex Bolts DIN931 with Partial Thread

Name: High-Quality Black Phosphate Hex Bolts DIN931 with Partial Thread
Brand: Tianjin Zhenxiangyude International Trading Co., Ltd.
SKU: 2134315112

Tianjin, ChinaTianjin Zhenxiangyude International Trading Co., Ltd.

US$0.05

5,000-19,999 Pieces

US$0.01

20,000+ Pieces

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

Hex bolt

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, GB, JIS

Grade

12.9

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Black

Length

5-120mm

MOQ

5000

Size

M3-M12

Lead Time

15-20days Mostly

Payment Term

T/T

OEM/ODM

Welcomed

Transport Package

We Can Follow Customer's Request

Specification

Trademark

Origin

Tianjin, China

Key features

Wide Size Range: Available in metric M3-M12 and imperial 1/8'-4', covering extensive needs.

High Strength Grade: Grade 12.9 carbon steel bolts ensure durability and high load capacity.

Customizable Length: Lengths can be customized from 5mm to 120mm to fit specific requirements.

Multiple Finishes: Options include Black Oxide, Dacromet, HDG, and Mechanical Galvanizing.

Global Standards: Complies with DIN, GB, JIS, ANSI/ASTM, and BSW international standards.

OEM/ODM Service: Customized fasteners and specifications are welcomed for OEM/ODM projects.

100% Inspection: Finished products undergo 100% visual inspection to ensure quality.

Expert Technical Support: Free consulting for material selection in extreme environments like corrosion.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceCustomization from Samples100% Finished Products Inspection

Tianjin Zhenxiangyude International Trading Co., Ltd.

Tianjin, China

Business Type: Trading Company CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 11years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤7.87h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier offers a broad range of screws, rivets, bolts, and nuts, with drywall screw output stated at 100,000 tons and reported export markets across South America, Southeast Asia/Mideast, and North America. It reports lead times within 15 workdays in both peak and off-peak seasons, but has fewer than five quality-control staff and staff experience totaling three years. Quality assurance and raw-material traceability are reported, although complaint handling, supplier assessment, and corrective-action procedures lack written procedures or records. The supplier reports no inventory, overseas warehouse, showroom, agent, or branch service capability. R&D resources are limited: no patents, private mold capability, professional technical supplier capability, or 3D design services are reported; customization is available from samples. Financial credibility cannot be confirmed because the supplied financial records show zero values, which conflict with other reported production and company-profile...

Supplier typeThe supplier is presented as a building-material manufacturer with six factories and five branch offices, while its stated product scope centers on drywall screws, self-tapping screws, self-drilling screws, wood screws, machine screws, rivets, bolts, and nuts. Its business scope also includes broader hardware, building-material, mechanical-equipment, and other product sales, indicating a manufacturer with a broad trading and sales scope.

After-Sales capabilityAfter-sales and service-management evidence is weak: complaint handling has no written procedures or records, and service-capability assessment and corrective/preventive-action mechanisms are also undocumented. The supplier reports no inventory, overseas warehouse, showroom, overseas agent, or branch service capability, although quality assurance and material traceability are stated.

R&D capabilityThe supplier reports zero R&D patents, no private mold-design capability, no professional technical-supplier capability, and no 3D software design services. Although the company description claims quality and innovation, the specific capability data shows limited documented innovation resources.

Production capacityProduction capability is supported by reported drywall screw output of 100,000 tons, a stated lead time within 15 workdays in both peak and off-peak seasons, and a company profile citing six factories. However, fewer than five quality-control staff and limited documented operating procedures indicate constraints in production-control support, while the supplied data does not independently verify the claimed factory network or output.

Customization capabilityThe supplier explicitly provides customization from samples. However, it reports no private mold-design capability and no 3D software design services, so customization appears dependent on customer-provided samples rather than supplier-led engineering or design development.

Product Q&A

Q:What standards do your fasteners comply with?

Our products comply with DIN (Germany), GB (China), ANSI/ASTM (USA), BSW (UK), and JIS (Japan) standards. We can also provide customized specifications according to customer requirements.

Q:What delivery methods do you offer to overseas customers?

We offer sea freight (FOB/CIF), air freight, and express delivery (DHL/FedEx) services at competitive prices. Delivery time varies depending on the destination.

Q:How can I track my international order?

We will send you a real-time tracking number via email after the goods are shipped. For urgent inquiries, please contact our export customer service department.

Q:What should I do if I receive a defective product?

We offer a 12-month quality guarantee. Please provide photos/videos and report the problem within 7 days of receiving the product, and we will arrange for replacement or refund promptly.

Q:Can you provide assistance with material selection for extreme environments?

Absolutely! Our engineering team can provide free consulting services on solutions for corrosion resistance, high temperature resistance, or high load applications.