What is the minimum order quantity?

The minimum order quantity is 100 pieces.

What certifications do your products have?

Our products are certified under ISO standards, and we can provide SGS third-party inspection reports.

How long does the salt spray test last?

Our Ruspert and Dacromet coatings offer corrosion resistance ranging from 500 to 3000 hours in salt spray tests.

TSR/Tsingri Rust Resistant 12g Tek Roofing Timber Fixing Screws For Roofing Constructure

Name: TSR/Tsingri Rust Resistant 12g Tek Roofing Timber Fixing Screws For Roofing Constructure
Brand: Suzhou Tsingri Fasteners Co., Ltd.
SKU: 1966338482

Shandong, ChinaSuzhou Tsingri Fasteners Co., Ltd.

US$0.08-0.75

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 Driling Screw 306

Surface Finishing

Dacromet/Ruspert

Certification

ISO

Customized

Thread

Coarse/Fine Thread

Drive

Hexagon

Point

#3 Drill Point

Sample

Free

Testing Report

Available

Standard

International/Customized

Inspection

Third Party/SGS Report

Application

Roofing Custruction

Head Mark

Available

Salt Spray Time

500-3000H

Individual Package

Available

Transport Package

Required

Specification

5.5-14*25/32/38

Trademark

TSR/Tsingri

Origin

China

HS Code

7318159090

Production Capacity

500tons/Month

Key features

Customized Material Options: Available in Carbon Steel 1022, SCM435, Stainless Steel, Aluminum, Brass, and other customized materials.

Customized Size Specifications: Diameter ranges from 5.5mm to 14mm with lengths customizable from 25mm to 1-1/2 inches.

Superior Corrosion Resistance: Ruspert and Dacromet coatings provide 500 to 3000 hours of salt spray test resistance.

Free Sample Availability: Free samples provided for testing, customer only needs to cover freight costs.

OEM and ODM Services: Full customization, design, and sample-based customization services are welcomed.

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

Customized Thread and Drive: Options include Coarse/Fine Thread and Hexagon drive types tailored to requirements.

Third-Party Inspection Reports: SGS reports and third-party inspection services are available upon request.

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: ≤4.29h

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.