What are the accepted payment methods?

We accept 30% T/T deposit with 70% before shipping, as well as L/C, D/P, PayPal, and Western Union.

How are the products packaged?

Standard packaging is 20-25 kg per carton with 36 or 48 cartons per pallet. Custom packaging and logos are available.

Do you accept custom designs for boxes?

Yes, we accept customized designs for both products and packaging with a professional design team.

Are you a verified and legitimate manufacturer?

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

Can I visit your factory?

Yes, factory visits are welcome at any time. Please contact us beforehand to arrange airport or station transportation.

Zinc Plated Black Oxide Grub Screws - Hex Socket Set

Name: Zinc Plated Black Oxide Grub Screws - Hex Socket Set
Brand: Bolnut Fastener Co., Ltd
SKU: 2209936935

Jiangsu, ChinaBolnut Fastener Co., Ltd

US$0.10

1,000 Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel, Stainless Steel

Type

Round Head, Special Head

Model NO.

DIN913

Groove

Hexagon

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

10.9

Connection

Common Bolt

Head Style

Round

Standard

DIN, ANSI, GB, JIS, Bsw

Application

Machinery, Chemical Industry, Environmental, Building

Grade

A2-70

Finish

Black, Zinc, Plain, Black Oxide, Zinc Plated, Blue

MOQ

10000pieces

Thread

Metric

Name

Screw

Ceteficate

ISO9001

Transport Package

20-25kg/Carton+900kg Pallet

Specification

M6-M48

Trademark

BNT

Origin

China

HS Code

731815

Production Capacity

1000ton/Month

Key features

Diverse Material Options: Available in SS201, SS303, SS304, SS316, SS316L, SS904L, and F593 stainless steels.

Multiple Finishing Choices: Options include Zinc (Yellow, White, Blue, Black), HDG, Black Oxide, Geomet, and Nickel plating.

Comprehensive Customization: Tailored services for custom logos, designs, and packaging based on customer samples or drawings.

Wide Standard Compliance: Meets DIN, ASTM/ANSI, JIS, EN ISO, AS, GB, and BSW standards.

Free Sample Availability: Free samples provided for standard fasteners with weights under 1 kg.

Flexible Lead Time: 10-15 days in slack season and 15-30 days during busy season for customized orders.

Professional Manufacturing: Over 10 years of experience with rigorous durability testing and critical technical design.

Global Shipping Capability: Export from major ports including Shanghai, Ningbo, Shenzhen, and Tianjin.

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: ≤0.90h

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.