What is the standard packaging method?

Standard packaging is 20-25 kg per carton, with 36 or 48 cartons per pallet (approx. 900-960 kg per pallet).

Is factory visit allowed?

Yes, we welcome factory visits. Please contact us in advance to arrange transportation from the airport or train station.

How can I trust your company?

We are verified suppliers on Made-in-China and undergo rigorous certification processes to ensure we are a legitimate manufacturer.

Premium Wholesale Ruspert Zinc Hex Washer Screws for Professionals

Name: Premium Wholesale Ruspert Zinc Hex Washer Screws for Professionals
Brand: Bolnut Fastener Co., Ltd
SKU: 2097219072

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

Type

Hexagon Head

Model NO.

DIN7504k

Groove

Hexagon

Connection

Common Bolt

Head Style

Countersunk Head

Standard

DIN, GB, ANSI, BSW, JIS

Grade

A2-70

MOQ

10000pieces

Thread

Metric

Name

Self Drilling Screws

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

Wide Material Range: Available in SS201, SS303, SS304, SS316, SS316L, SS904L, and various steel grades.

Multiple Finishing Options: Zinc (Yellow, White, Blue, Black), HDG, Black Oxide, Geomet, Dacroment, and more.

Custom Logo & Design: We accept custom logos, designs, and packaging according to your specific requirements.

Free Samples Available: Free samples for standard fasteners; weight under 1kg shipped free, express covered for existing customers.

Flexible Lead Time: Stock items: 2-5 days; Bulk orders: 10-30 days depending on season and quantity.

Professional Manufacturer: Over 10 years of expertise with rigorous quality assurance and durability testing.

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

Verified Supplier: Verified on Made-in-China with rigorous certification processes ensuring legitimacy.

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: ≤0.97h

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.