What certifications does the product have?

The product meets ISO standards and supports third-party inspection reports like SGS.

What surface treatments are offered?

Surface treatments include Ruspert, Dacromet, and other customized options.

What is the minimum order quantity?

The minimum order quantity is 100 pieces.

BS 1210 Rust Proof Flat Countersunk Head Self Drilling Roofing Screw For Metal Sheet Steel

Name: BS 1210 Rust Proof Flat Countersunk Head Self Drilling Roofing Screw For Metal Sheet Steel
Brand: Suzhou Tsingri Fasteners Co., Ltd.
SKU: 2140344825

Shandong, ChinaSuzhou Tsingri Fasteners Co., Ltd.

US$0.25

10,000-49,999 Pieces

US$0.20

50,000-99,999 Pieces

US$0.16

100,000+ Pieces

Sample price:US$0.50/piece.Request sample

Product profile

Customization

Available

Material

SS304+SCM435

Shape of Head

Round

Model NO.

Bi Metal Screws 90

Surface Finishing

Dacromet/Ruspert

Certification

ISO

Customized

Grade

10.9/A2-70

Sample

Free

Testing Report

Available

Standard

International/Customized

Inspection

Third Party/SGS Report

Application

Roofing Custruction

Head Mark

Available

Salt Spray Time

500-5000h

Individual Package

Available

Transport Package

Required

Specification

ST3.2-ST8/6mm-300mm

Trademark

TSR/Tsingri

Origin

China

HS Code

7318140000

Production Capacity

500tons/Month

Key features

Rust Proof Material: Constructed with SS304 and SCM435 for superior corrosion resistance.

Customized Surface Finish: Available in Dacromet, Ruspert, or other customized surface treatments.

Wide Size Range: Sizes from ST3.2 to ST8.0 with lengths from 5mm to 300mm.

High Salt Spray Resistance: Offers 500 to 5000 hours of salt spray test protection.

Free Sample Available: Free samples provided, customer pays freight cost.

Fast Delivery: In-stock items available within 7 days; customized within 15-30 days.

Third-Party Inspection: Third-party inspection reports and SGS testing available.

OEM and ODM Service: Full customization, design, and sample-based customization supported.

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: ≤2.76h

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.