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.

What is the standard packaging configuration?

Standard packaging is 20-25 kg per carton, with 36 or 48 cartons per pallet weighing approximately 900-960 kg.

Do you accept custom designs for products and boxes?

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

How can I verify your company legitimacy?

We are verified suppliers on Made-in-China and undergo a rigorous certification process to ensure legitimacy.

Is factory visit allowed?

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

Stainless Steel 304 Solar Panel Roof Mounting Double Thread Screws Hanger Bolts

Name: Stainless Steel 304 Solar Panel Roof Mounting Double Thread Screws Hanger Bolts
Brand: Bolnut Fastener Co., Ltd
SKU: 2215508415

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

Type

Round Head

Model NO.

Hanger Bolts

Connection

Common Bolt

Head Style

Round

Standard

DIN, ANSI, GB, JIS, BSW

Grade

A2-70

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Zinc, Plain

MOQ

10000pieces

Thread

Metric

Name

Double Thread Screw

Ceteficate

ISO9001

Transport Package

20-25kg/Carton+900kg Pallet

Specification

M4-M100

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, and Nickel plating.

Customized Fastener Services: Tailored manufacturing based on customer samples and drawings with precision.

Free Sample Availability: Free samples provided for standard fasteners with express charges covered for existing clients.

Comprehensive Certification: Products meet DIN, ASTM, ANSI, JIS, EN, ISO, and AS standards with ISO9001 certification.

Flexible Production Capacity: Cold forging for M2-M24 and hot forging for M24-M100 with CNC machining capabilities.

Competitive Pricing Strategy: Cost-effective solutions delivered through efficient factory production without compromising quality.

Professional Quality Assurance: Stringent durability tests and specialized technical designs ensure long-lasting performance.

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: ≤0.82h

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.