What quality assurance measures do you have?

We implement a rigorous two-stage protocol including pre-production sampling with dimensional verification and full batch inspection with torque testing and salt spray analysis.

What is the minimum order quantity?

The minimum order quantity is 1 Kg.

DIN7991 Black Allen Countersunk Stainless Steel 12.9 Hexagon Socket Screws

Name: DIN7991 Black Allen Countersunk Stainless Steel 12.9 Hexagon Socket Screws
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2195682445

Zhejiang, ChinaNingbo Yinzhou Sokun Import and Export Co., Ltd.

US$0.10

1,000-4,999 Pieces

US$0.09

5,000-9,999 Pieces

US$0.08

10,000-49,999 Pieces

US$0.06

50,000+ Pieces

Product profile

Customization

Available

Material

Carbon Steel, Stainless Steel

Type

Countersunk Head

Model NO.

DIN 7991

Groove

Manufacturing According to Standards or Requiremen

Connection

Common Bolt

Head Style

Countersunk Head

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

8.8/10.9/12.9

Standards

GB, DIN, ISO, JIS

Finished

Passivation, Zinc Plating, Black, Plainhdg, Yellow

Certificate

ISO9001/SGS

Selling Units

Building, Industry, Machinery

Package

Customer'require

Delivery Time

15-30

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

Wide Standard Compliance: Meets DIN, GB, ANSI, BSW, JIS, GOST, and ISO standards for global compatibility.

Customizable Finishes: Offers Zinc Plating, Hot Dip Galvanized, Dacromet, Nickel Plated, Black Oxide, and Plain options.

High Strength Grades: Available in 8.8, 10.9, and 12.9 grades for superior load-bearing performance.

Flexible Customization: Supports full customization from samples and designs with flexible manufacturing options.

ISO Certified Manufacturer: Established in 2009 with ISO certification and rigorous two-stage quality assurance protocols.

Free Sample Availability: Provides 1-3 pcs free standard samples with express shipping options via DHL/UPS/FedEx.

Global Market Reach: Serves clients across North America, Europe, Asia, and other major international markets.

Fast Delivery Options: Standard delivery within 30-40 days with custom prototyping available in 15 working days.

Company profile

High Repeat Buyers ChoiceODM ServicesR&D CapabilitiesProduction Process Visualization

Ningbo Yinzhou Sokun Import and Export Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 15 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤4.56h

AI-Powered supplier vetting

SummarySokun is a limited company with 21 employees, related companies, and product coverage including fasteners, machined parts, and stamping parts. It supports customization from samples and designs, offers ODM services, and reports OEM service for well-known brands. Quality processes include quality assurance, documented inspection instructions, and complaint-handling records, although finished-product inspection is random and only one quality inspector is reported. Production-related strengths include in-stock capability, CNC and punching equipment, and one-month stated lead times in both peak and off-season periods. Key limitations are the absence of a valid manufacturing-capacity contract with related subcontractors, no overseas warehouse, branches, agents, or showrooms, and no documented R&D audit materials, new products in the past year, or R&D patents. Financial credibility cannot be determined from the provided information.

After-Sales capabilityThe supplier has a clear customer-complaint procedure with followed records and accepts several quotation and payment terms. However, it has no overseas warehouse, showroom, agent, or branch, and reports zero countries with overseas services, limiting evidence of localized after-sales support.

R&D capabilityThe supplier provides ODM and multiple customization-based design services, but reports no new products during the past year, no available SDK, no R&D audit documentation, and zero R&D patents. These facts indicate design support but limited documented evidence of independent innovation.

Production capacityProduction evidence includes CNC and punching equipment, in-stock capability, one-month lead times in both peak and off-season, and a product scope aligned with machined and stamping parts. Nevertheless, there is no valid manufacturing-capacity contract with related subcontractors, which creates a documented capacity-governance weakness.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, flexible customization, and minor customization, and also offers ODM services. This is direct evidence of broad customization capability.

Product Q&A

Q:Can you provide samples?

Yes, free samples (1-3 pcs) are available for standard specifications. Customized samples can be prototyped within 15 working days. Sample costs are refundable upon bulk order confirmation.

Q:What are the payment terms?

Standard terms are 30% T/T deposit with 70% balance against Bill of Lading copy. For orders under $1,000 USD, full advance payment is recommended. We accept SWIFT, LC at sight, PayPal, and Western Union.

Q:What materials are used for the screws?

The screws are manufactured from Carbon Steel and Stainless Steel to ensure durability and corrosion resistance.

Q:Do you offer customization services?

Yes, we offer flexible customization including full customization from samples and designs, as well as specific finishes and standards according to customer requirements.

Q:What is the typical delivery time?

Standard delivery time is normally 30-40 days. Customized samples can be produced within 15 working days.