What are your payment terms?

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

How are the products packaged?

Standard packaging is 20-25 kg per carton (36-48 cartons per pallet). We can print logos or customize packaging.

Can I visit your factory?

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

304 A2 DIN7991 Stainless Steel Screw Hexagon Socket Head Flat Countersunk Allen Bolt Screw

Name: 304 A2 DIN7991 Stainless Steel Screw Hexagon Socket Head Flat Countersunk Allen Bolt Screw
Brand: Bolnut Fastener Co., Ltd
SKU: 2210489245

Jiangsu, ChinaBolnut Fastener Co., Ltd

US$0.10

1,000 Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel /Stainless Steel

Type

Flat Head

Model NO.

DIN7991

Connection

Common Bolt

Head Style

Counter Sunk Bolt

Standard

DIN, ANSI, GB, JIS, BSW

Grade

A2-70

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Zinc, Zinc Plated

MOQ

10000pieces

Thread

Metric

Name

Hexagon Socket Countersunk Head Bolts

Sample

5-8PCS Free Samples But Not Included Freight

Transport Package

20-25kg/Carton+900kg Pallet

Specification

M8-M100

Trademark

BNT

Origin

China

HS Code

731815

Production Capacity

1000ton/Month

Key features

Diverse Material Options: Available in Carbon Steel and Stainless Steel grades including SS304, SS316, and SS904L.

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

Customizable Fasteners: Offers full customization based on customer samples, drawings, and specific designs.

Extensive Finishing Choices: Includes Zinc plating (Yellow, White, Blue, Black), HDG, Black Oxide, and Nickel plating.

Free Sample Availability: Provides 5-8 free samples for standard fasteners, with express charges covered for existing customers.

Flexible Production Capacity: Utilizes cold forging, hot forging, machining, and CNC for sizes M2 to M100.

Competitive Pricing: Cost-effective solutions leveraging robust factory production capabilities.

Professional Quality Assurance: Rigorous durability tests and technical design evaluations ensure high reliability.

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: ≤0.80h

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.