What is the minimum order quantity?

The minimum order quantity is 100 pieces.

Do you provide third-party inspection reports?

Yes, we can provide third-party inspection reports, including SGS reports, upon request.

What payment terms do you accept?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

TSR/Tsingri Ruspert Coated Hex Flange Head Self Drilling Screws Structure Fixing Screws

Name: TSR/Tsingri Ruspert Coated Hex Flange Head Self Drilling Screws Structure Fixing Screws
Brand: Suzhou Tsingri Fasteners Co., Ltd.
SKU: 2093118735

Shandong, ChinaSuzhou Tsingri Fasteners Co., Ltd.

US$0.26-0.66

20,000 Pieces

Sample price:US$0.50/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Shape of Head

Hexagon

Model NO.

Self Drilling Screw 108

Surface Finishing

Dacromet/Ruspert

Certification

ISO, GS

Customized

Thread

Coarse/Fine Thread

Sample

Available

Testing Report

Available

Standard

International/Customized

Inspection

Third Party/SGS Report

Application

Light Steel Keel

Head Mark

Available

Transport Package

Required

Specification

ST4.8-ST6.3/16mm-200mm

Trademark

Tengri/Tsingri

Origin

China

HS Code

7318140000

Production Capacity

500tons/Month

Key features

Customized Material Options: Available in Carbon Steel, Stainless Steel, Aluminum, Brass, Copper, and more based on requirements.

Flexible Size Customization: Sizes range from ST4.8-ST6.3 and 20mm-300mm, fully customizable to specific needs.

Advanced Surface Treatment: Offers Ruspert, Dacromet, Galvanized, Phosphated, and other protective coatings for corrosion resistance.

Self-Drilling & Tapping Design: Features sharp drill points and deep knurling threads for smooth operation and strong locking force.

Fast Delivery for Stock Items: In-stock items can be shipped within 7 days for urgent project needs.

Customized Production Lead Time: Custom orders typically require 15-30 days for production and delivery.

Comprehensive Quality Testing: Includes third-party inspection, SGS reports, and internal testing for hardness and torque.

Professional OEM/ODM Service: Full customization support including design, samples, and specific manufacturing requirements.

Company profile

Management CertificationHigh Repeat Buyers ChoiceOEM ServicesODM Services

Suzhou Tsingri Fasteners Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤4.23h

AI-Powered supplier vetting

SummarySuzhou Tsingri Fasteners Co., Ltd. is a China-based limited trading company established in 2023 with 13 employees and a broad fastener portfolio. It reports export activity, self-operated import/export rights, inventory capability, customization from designs and samples, and OEM service for well-known brands. Its stated product output includes multiple screw categories, while lead time during off-peak seasons is within 15 working days. However, quality-control evidence is weak: it reports fewer than five quality-control staff, no quality-testing equipment, unknown quality-assurance and traceability status, and no written procedures or records for corrective actions or complaints. An SGS audit is documented, but the reported evaluation result is 0 and the report expired in 2025. Financial records are referenced for 2021–2023, but no substantive financial assessment is provided. No SDK is available, and no overseas warehouse or showroom is provided.

CertificationsAn SGS audit was conducted, with a report period from May 14, 2024 to May 13, 2025, but the audit evaluation result is recorded as 0. The slices do not identify any active product or management certifications, and the audit report has expired.

After-Sales capabilityThe supplier states that customer emails are handled within 24 hours and that experienced engineers support service coordination. However, it has no written procedures or records for complaint handling or corrective and preventive actions, and it has no overseas warehouse or showroom, so formal and local after-sales infrastructure is not demonstrated.

Production capacityThe supplier reports output across self-drilling, roofing, bi-metal, and self-tapping screws, inventory capability, a 5,000-square-meter manufacturing area, a 3,000-square-meter warehouse, and 500 tons per month capacity, with off-peak lead time within 15 working days. These statements support operational capacity, although the supplier is also classified as a trading company and its manufacturing-capacity contract status is unknown.

Customization capabilityThe supplier explicitly reports customization from designs, samples, full customization, minor customization, and flexible customization. It also states that it provides OEM services for well-known brands, directly supporting broad customization and OEM capability.