What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, Western Union, Small-amount payment, and Money Gram.

What industries can use these fasteners?

Products are widely used in bicycles, motorcycles, cars, UAVs, sports equipment, electronics, medical devices, and chemical equipment.

DIN7991 304 Hexagon Socket Countersunk Head Screws

Name: DIN7991 304 Hexagon Socket Countersunk Head Screws
Brand: SHAANXI RUIYANG IMPORT EXPORT CO., LTD.
SKU: 1919321625

Shaanxi, ChinaSHAANXI RUIYANG IMPORT EXPORT CO., LTD.

US$0.10-10.00

100 Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Round Head

Model NO.

M3-M24

Groove

Hexagon

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

8.8

Transport Package

Carton+Pallet or Wooden Box

Specification

M3-M24

Trademark

RUIYANG

Origin

China

HS Code

7318190000

Production Capacity

5000000PCS Per Month

Key features

Wide Material Selection: Available in SS201, SS303, SS304, SS316, SS316L, SS904L, Titanium, and Nickel Alloys.

Multiple Surface Treatments: Options include Zinc, HDG, Black Oxide, Geomet, Dacroment, Anodization, and Nickel Plating.

Customizable Sizes: Standard sizes M3-M24 with custom dimensions available upon request.

Broad Standard Compliance: Meets DIN, GB, ANSI, BSW, JIS, and GOST standards with various strength grades.

Versatile Application Fields: Suitable for bicycles, motorcycles, cars, UAVs, electronics, medical, and chemical equipment.

Competitive Factory Pricing: Direct supply from leading Chinese manufacturer with competitive wholesale prices.

Company profile

SHAANXI RUIYANG IMPORT EXPORT CO., LTD.

Shaanxi, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2007-05-07Nearest Port: Shanghai, Tianjin, NingboAverage Response Time: ≤4.01hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, FCA

AI-Powered supplier vetting

SummaryThe supplier manufactures centrifugal cast tubes and titanium products and reports more than 10 years of experience. It has integrated smelting, rolling, forging, cold drawing, and finish-machining production lines, 50 quality-control staff, and annual output in the stated US$10 million–US$50 million range. It reports ISO 9000/9001/14000/14001 and BSCI certifications. The supplier provides broad customization and ODM services, has introduced new products in the past year, and offers OEM services to known brands. Export sales account for 90%, with seven years of export experience and self-operated import/export rights. Complaint handling and corrective-action procedures are documented and followed. However, quality test equipment is reported as zero, traceability and quality-assurance status are unknown, and there is no overseas warehouse, showroom, agent, branch, or offline trade-show participation. Financial information is represented only by years, so financial strength cannot be verified.

Supplier typeThe supplier is a manufacturing company focused on centrifugal cast tubes and titanium products, with more than 10 years of experience and production capabilities covering smelting, hot and cold rolling, forging, cold drawing, and finish machining. Its 90% export-sales share, seven years of export experience, and self-operated import/export rights indicate an export-oriented industrial manufacturer.

CertificationsThe supplier reports BSCI, ISO 9000, ISO 9001, ISO 14000, and ISO 14001 certifications. These stated management-system and social-compliance certifications provide explicit evidence of certification coverage.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions and customer complaints, and reports lead times within 15 workdays in both peak and off-season periods. However, it has no overseas agents or branches, overseas warehouse, showroom, or offline trade-show participation, limiting evidence of localized overseas support.

R&D capabilityThe supplier reports new products within the past year, ODM availability, broad R&D customization services, and R&D engineers with 6–10 years of total experience. It does not have an available SDK, but the supplied evidence supports product-development and design capability.

Production capacityThe supplier reports an integrated multi-process production system, 50 quality-control staff, inventory capability, 30 qualified service suppliers, and lead times within 15 workdays in both seasons. However, it reports zero quality-control test equipment, while quality assurance and traceability status are unknown; production scale is therefore supported, but testing controls are a material concern.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM services, demonstrating broad stated customization coverage.

Client casesThe supplier reports providing OEM services to known brands, which is direct evidence of brand-customer experience. No specific customer names, project details, product volumes, or independently verifiable case information are provided.

Product Q&A

Q:What materials are available for these screws?

We offer SS201, SS303, SS304, SS316, SS316L, SS904L, F593, A2, A4, Titanium alloys (GR1-GR23), and Nickel Alloys (N4, N6, 200, 201, C276).

Q:What surface treatments can be applied?

Finishing options include Original, Polished, Zinc (Yellow, White, Blue, Black), Hot Dip Galvanized (HDG), Black Oxide, Geomet, Dacroment, Anodization, and Nickel Plating.

Q:What are the standard size ranges?

Standard sizes range from M3 to M24. Custom sizes are also available based on customer requirements.

Q:Which standards do these screws comply with?

The screws comply with DIN, GB, ANSI, BSW, JIS, and GOST standards, including various strength grades like DIN Gr.4.6-12.9 and ASTM grades.

Q:What is the typical lead time for orders?

Lead time is within 15 workdays during the off-season and approximately one month during the peak season.