How are the products packaged?

Standard packaging is 20-25 kg per carton, with 36 or 48 cartons per pallet. Custom packaging with customer logos is also available.

Is your company a verified manufacturer?

Yes, we are verified suppliers on Made-in-China and undergo rigorous certification processes to ensure legitimacy and quality.

Can I visit your factory?

Of course. We welcome factory visits at any time. Please contact us in advance to arrange transportation from the airport or train station.

High Strength Black Galvanized Brass Self-Locking Hex Nuts

Name: High Strength Black Galvanized Brass Self-Locking Hex Nuts
Brand: Bolnut Fastener Co., Ltd
SKU: 2212791875

Jiangsu, ChinaBolnut Fastener Co., Ltd

US$0.10

1 Piece

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel/Carbon Steel

Type

Hexagon Head

Model NO.

DIN934

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, GOST, BSW

Grade

A2-70/8.8/10.9/12.9

Application

Machinery, Chemical Industry, Building

Finish

Plain, Zinc Plated, Black Oxide, Galvanized

MOQ

10000pieces

Thread

Metric

Name

Hexagon Nuts

Certificate

ISO9001,RoHS

Measurement System

Inch,Metric

Transport Package

20-25kg/Carton+900kg Pallet

Specification

M3-M110

Trademark

BNT

Origin

China

HS Code

731815

Production Capacity

1000ton/Month

Key features

Custom Logo and Design: We accept custom logos and designs on products and packaging.

Free Samples Available: Free samples provided for standard fasteners under 1kg weight.

Wide Material Range: Available in Stainless Steel (304, 316, etc.) and Carbon Steel grades.

Multiple Finishing Options: Options include Zinc Plated, Black Oxide, Galvanized, and more.

Flexible Lead Time: 10-30 days depending on season; 2-5 days for in-stock items.

Strict Quality Assurance: Stringent durability testing ensures high reliability and lifespan.

Professional Manufacturer: Over 10 years experience with ISO9001 and RoHS certifications.

Customization Services: Full customization from samples, designs, or minor adjustments.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceFast Delivery

Bolnut Fastener Co., Ltd

Jiangsu, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 13 YearsNearest Port: SHANGHAI , NINGBO ,ZHAPU , SHENZHEN, TIANJINGAverage Response Time: ≤0.77h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company in Zhangjiagang, Suzhou, with business scopes covering labor protection products, apparel, textiles, communication equipment, electronics, and certain medical protective products. It is described as a professional technical supplier and offers multiple customization modes, ODM services, and OEM services for popular brands. However, it has only one R&D engineer, launched no new products in the past year, and does not provide 3D software or SDK services. Service procedures and complaint-handling procedures exist, but supplier approval records are incomplete. Financial information is represented only by reporting years, without performance values. No overseas warehouse, showroom, overseas branch or offline trade-show participation is reported.

Supplier typeThe supplier is explicitly classified as a trade company, while its stated scope includes labor protection products, apparel, textiles, medical protective equipment, communication equipment, and electronic products. It is also identified as a professional technical supplier, indicating a trading-oriented business with technical and customization support rather than confirmed manufacturing status.

After-Sales capabilityThe supplier has a clear complaint-handling procedure with followed records, and it has a corrective and preventive action mechanism with implementation records. However, its general service-assessment procedure has no records, and its approved-supplier list lacks approval signatures or dates, indicating documented but incompletely controlled service processes.

R&D capabilityThe supplier is identified as a professional technical supplier and offers ODM services, but it has only one R&D engineer, launched no new products in the past year, and lacks both 3D software design and SDK capabilities. This shows some technical development and design support, but limited demonstrated innovation output and digital R&D capability.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM services, directly evidencing broad customization and design-manufacturing support.

Client casesA repeat-buyer preference of 50%–80% is reported, and the supplier states that it provides OEM services for popular brands. These are positive customer-related indicators, but no named customers, specific projects, order examples, or independently verifiable case details are provided.

Product Q&A

Q:How can I get the product catalog?

Please provide your email address, and we will send the catalog within two working hours.

Q:Are free samples available?

Yes, free samples are provided for standard fasteners. We ship weights under 1kg for free, and existing customers may also have express charges covered.

Q:Can I customize the logo or design?

Yes, we accept custom logos and designs on both products and packaging, supported by our professional design team.

Q:What is the delivery time?

In-stock items can be delivered within 2-5 days. For new orders, it takes 18-25 days for 1-2 containers, or 10-30 days depending on the season.

Q:What are the payment terms?

Standard terms are 30% T/T deposit and 70% before shipping. We also accept L/C, D/P, PayPal, and Western Union.