How do you ensure quality control?

Our QC team inspects every production link for each batch of goods. We provide Material Test Certificates (MTC) and mill certificates upon completion.

Do you offer free samples?

New customers can request free samples of standard fasteners, with express charges covered by the client. Returning customers receive free samples with express charges covered by us.

Do you accept small orders?

Yes, we accept orders of any size and maintain a stock of various fasteners. Custom production is also available.

What is your delivery time?

If items are in stock, we can deliver within 15 days. For larger quantities, delivery may take 25-35 days.

How do you pack your products?

Our standard packing is 20-25kg per carton, with 36 or 48 cartons per pallet. Customized packaging with logos is available upon request.

What are your accepted payment methods?

We accept T/T, L/C, and D/P for general orders, as well as PayPal and Western Union for small or sample orders.

Zinc Finish Double-Threaded Metric Stud Bolt

Name: Zinc Finish Double-Threaded Metric Stud Bolt
Brand: Ningbo Steel Bolt Co., Ltd
SKU: 2115436205

Zhejiang, ChinaNingbo Steel Bolt Co., Ltd

US$0.10-1.00

1,000 Pieces

Product profile

Customization

Available

Material

Steel

Surface Finishing

Zinc Plated

Model NO.

DIn 975

Grade

4.8, 6.8, 8.8, 10.9, 12.9

Certification

ISO

Customized

Packing

Pallets

Studs Type

Metric Studs B1=1.25D

Finish

Zinc

Application

Industry

Customized Support

OEM

Surface Treatment

Zinc Plated

Transport Package

Carton

Specification

M6-M100

Trademark

ningbo-bolt

Origin

Ningbo, China

Production Capacity

100000 Piece/Pieces Per Month

Key features

Comprehensive Grade Range: Available in grades 4.8, 6.8, 8.8, 10.9, and 12.9 to meet diverse strength requirements.

ISO Certified Quality: Adheres to ISO9001 quality management system with 100% qualified products.

Lifetime Warranty Coverage: All products come with a lifetime warranty covering mechanical defects.

OEM and ODM Support: Full customization services including designs, samples, and flexible customization options.

Material Test Certificates: MTC and mill certificates provided for every batch to ensure traceability and quality.

Flexible Delivery Time: Stock items delivered within 15 days; larger quantities take 25-35 days.

Customized Packaging: Standard packing available with options for custom logos and packaging upon request.

Free Sample Availability: Free samples for new customers (client pays express) and returning customers (free express).

Company profile

High Repeat Buyers Choice

Ningbo Steel Bolt Co., Ltd

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤24h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier and operates as a combined company involved in producing and selling fasteners, hardware products, auto parts, and oil pipeline fittings. It supports extensive product customization, including samples, designs, full customization, minor customization, and flexible customization. The supplier reports two production lines and one presence in a main export market, with an average lead time of one month in both peak and off-season periods. However, it lacks 3D software design services, SDK availability, in-stock capacity, overseas warehouses, overseas agents or branches, and offline trade-show participation. Finished products are checked by packing staff, while no written procedures or records are used for assessing service capability. The provided information does not establish certifications, financial strength, after-sales performance, or customer case history.

Supplier typeThe supplier is explicitly identified as a professional technical supplier. It is a combined company whose stated business scope includes production and sales of fasteners, hardware products, auto parts, and oil pipeline fittings, as well as related import and export activities.

R&D capabilityThe supplier is identified as having professional technical research and development capability, and it offers multiple forms of customization. However, it explicitly does not provide 3D software design services and has no available SDK, so the evidence supports technical customization but not broader digital or software innovation capability.

Production capacityThe supplier reports two production lines, one-month average lead times in both peak and off-season, and six years of exporting experience. Countervailing controls are limited: finished products are checked by packing staff, there is no continuous quantity reconciliation for each batch or production run, no outsourcing SOP, no valid manufacturing-capacity contract with related subcontractors, and no in-stock capacity.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. This is direct evidence of broad product-design and modification capability, although 3D software design services are not available.

Product Q&A

Q:Are you a manufacturer or trading company?

Ningbo Steel Bolt Co., Ltd is a manufacturer of fasteners with extensive experience in producing Bolts, Nuts, Threaded Rods, and Washers in Ningbo, China.

Q:Do you provide OEM/ODM services?

Yes, Ningbo Steel Bolt Co., Ltd accepts OEM/ODM orders.

Q:How do you guarantee quality?

We maintain strict quality control measures from raw materials to finished products, adhering to the ISO9001 quality management system. All our products are 100% qualified and come with a lifetime warranty.

Q:How can I trust you?

Ningbo Steel Bolt Co., Ltd is a reputable fasteners factory in China, recognized as a Gold member on *** and Made in China. We have credit guarantees from *** Group for secure transactions.

Q:What about your pricing?

We offer high-quality products at competitive prices. Contact us for a quote tailored to your needs.