Do you provide ODM services?

Yes, ODM service is available, and we support custom processes like cold forging, hot forging, and machining.

What standards do your fasteners comply with?

Our products comply with DIN, JIS, GB, ANSI, BS, and GOST standards.

How are the products packaged?

Standard packaging includes plastic bags, chipboard cartons, and plywood pallets. Custom packaging is also available upon request.

Hex Head Socket Bolt DIN7991 Screws with Black Surface Treatment M16

Name: Hex Head Socket Bolt DIN7991 Screws with Black Surface Treatment M16
Brand: Ningbo Strong Bolt Trade Co., Ltd.
SKU: 2120461782

Zhejiang, ChinaNingbo Strong Bolt Trade Co., Ltd.

US$0.10

1,000 Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Countersunk Head

Model NO.

DIN7991

Groove

Hexagon

Connection

Common Bolt

Head Style

Counter Sunk Bolt

Standard

DIN, GB, ANSI, JIS, GOST

Grade

4.8,8.8,10.9,12.9

Process

Cold Forging,Hot Forging,Machining

Salt Spray Test

According to Requirements

Surface Treatment

According to Requirements

Thread Type

Fine / Coarse /Bsw/Bsf/ Unc/Unf

Transport Package

Small Box & Bulk & Customizing

Specification

M3-M24

Trademark

STRONG BOLT

Origin

Ningbo, China

HS Code

7318150000

Production Capacity

2500tons/Year

Key features

Wide Material Selection: Carbon steel, stainless steel, duplex, brass, copper, plastic, and aluminum available.

Extensive Surface Treatment: Options include zinc plating, galvanizing, nickel plating, HDG, anodizing, and powder coating.

Multiple Grade Options: Available in grades 4.8, 8.8, 10.9, and 12.9 to meet various strength requirements.

Custom Process Capabilities: Supports cold forging, hot forging, and machining with custom salt spray and thread types.

10+ Years Experience: Over a decade of experience in fasteners, serving clients globally with high-quality standards.

Flexible Packaging: Standard or custom packaging with plastic bags, cartons, and pallets to protect goods.

Global Standards Compliance: Products conform to DIN, JIS, GB, ANSI, BS, and GOST standards for international use.

Fast Lead Time: Off-season lead time within 15 workdays; peak season lead time around one month.

Company profile

Self-brandedYears of Export ExperienceR&D CapabilitiesCustomization from Designs

Ningbo Strong Bolt Trade Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service AvailableAverage Response Time: ≤2.43h

AI-Powered supplier vetting

SummaryNingbo Strong Bolt Trade Co., Ltd. is a China-based trading company established in 2014 with 16 employees. It reports strong customization and ODM capabilities, new product activity within the past year, and extensive export activity, with 90% of sales from exports and 10 years of export experience. Its stated product output covers several fastener categories, while quality control staffing is reported at 11–20 personnel. However, service-management procedures lack documented records, and the company reports no overseas warehouses, showrooms, agents or branches, or offline trade-show participation. Financial information is identified for 2021–2023, but the provided slices do not give sufficient evidence to assess financial strength. No certification information, customer cases, or SDK availability is provided.

Supplier typeThe supplier is identified as a trading company, specifically Ningbo Strong Bolt Trade Co., Ltd., established in 2014 in Ningbo, Zhejiang, China, with 16 employees and limited-company status. This clearly establishes its business type but does not indicate that it operates as a manufacturing entity.

After-Sales capabilityThe supplier has written procedures for service assessment, supplier approval, corrective and preventive actions, and complaint handling, but no written records are reported for these processes. It also lacks overseas warehouses, showrooms, agents or branches, and reports zero countries with overseas services, limiting evidence of established international after-sales infrastructure.

R&D capabilityThe supplier reports that it introduced new products during the past year and provides ODM services. However, it reports no available SDK, so its innovation evidence supports product development and design services but not software-development integration.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM availability, providing direct evidence of broad customization and design-related service capability.