What materials are used for these screws?

Our screws are made from Stainless Steel, Carbon Steel, Bi-metal, and various other materials like Aluminum and Brass.

How quickly do you respond to customer inquiries?

Our after-sales service team replies to all questions within 12 hours to ensure prompt support.

What is the minimum order quantity?

The minimum order quantity is 100 pieces for our standard fastener products.

TSR/Tsingri Rust Resistant Structure Fixing Bonded Washer Self Drilling Bi Metal Screws

Name: TSR/Tsingri Rust Resistant Structure Fixing Bonded Washer Self Drilling Bi Metal Screws
Brand: Suzhou Tsingri Fasteners Co., Ltd.
SKU: 2096379735

Shandong, ChinaSuzhou Tsingri Fasteners Co., Ltd.

US$0.09-0.36

50,000 Pieces

Sample price:US$0.50/piece.Request sample

Product profile

Customization

Available

After-sales Service

yes

Warranty

3 years

Model NO.

self drilling screw 112

Application

Machine Parts, Roofing Custruction

Certification

ISO

Surface Treatment

Yes

Technics

Ruspert

Material

Steel

Type

Fasteners

Thread

Coarse/Fine Thread

Drive

Phillips Drive

Point

Thunder-Shot Point

Sample

Free

Standard

International/Customized

Inspection

Third Party/SGS Report

Head Mark

Available

Salt Spray Time

AS3566 Class 3/4

Individual Package

Available

Transport Package

Required

Specification

ST2.9-ST10

Trademark

TSR/Tsingri

Origin

China

HS Code

7318159090

Production Capacity

500tons/Month

Key features

3-Year Warranty Coverage: Comprehensive 3-year warranty protection for all mechanical defects and performance issues.

Customized Thread Options: Available in Coarse or Fine Thread configurations to meet specific application requirements.

Customized Drive Types: Drive types can be customized, including Phillips Drive and other specialized options.

Customized Point Design: Thunder-Shot Point design available for enhanced drilling performance and locking force.

Customized Standard Compliance: Standards can be customized to International or specific Customized requirements.

Third-Party Inspection Support: Inspection services available via Third Party or SGS Report for quality assurance.

Customized Salt Spray Resistance: Salt spray time can be customized to AS3566 Class 3 or Class 4 standards.

Free Sample Availability: Free samples provided for quality testing, with customer covering freight costs.

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.