How quickly do you respond to customer inquiries?

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

What is the minimum order quantity?

The minimum order quantity is 100 pieces.

Are samples available?

Free samples are available, but the customer must pay the freight cost first.

Tsingri #3 5.5*75mm Waterproof Self Drilling Screws for Construction With Plastic Caps

Name: Tsingri #3 5.5*75mm Waterproof Self Drilling Screws for Construction With Plastic Caps
Brand: Suzhou Tsingri Fasteners Co., Ltd.
SKU: 2089955812

Shandong, ChinaSuzhou Tsingri Fasteners Co., Ltd.

US$0.12

10,000-49,999 Pieces

US$0.10

50,000-99,999 Pieces

US$0.08

100,000+ Pieces

Sample price:US$0.50/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel, Carbon Steel

Shape of Head

Hex Head, Flat Head, Pan Head, Round Head, Hex Was

Model NO.

self drilling screw 811

Surface Finishing

Polish, Plain, Galvanized (Various of color), Pain

Certification

ISO, GS, RoHS, CE, ISO9001:2008 ISO14001:2004

Customized

Customized available by client request

Testing Report

Available

Standard

International/Customized

Inspection

Third Party/SGS Report

Application

Light Steel Keel

Head Mark

Available

Package

lastic bag /small box +outer carton +pallets

Certificate

ROHS ISO9001:2008 ISO14001:2004

Advantage

OEM Customized Service Provided

Transport Package

Required

Specification

ST3.5-ST6.3 (#4 - #14)

Trademark

Tsingri

Origin

China

HS Code

7318159090

Production Capacity

500tons/Month

Key features

Waterproof Design: Features hex flange waterproof nylon cap head with integrated big washer for secure sealing.

Self-Drilling Capability: Sharp #3 point and deep thread design enable easy tapping with strong locking force.

Durable Materials: Available in Stainless Steel and Carbon Steel (1022) with options for customized materials.

Customized Sizes: Size range from ST2.2 to ST8.0 and 5mm to 300mm, fully customizable per client request.

Extensive Surface Options: Offers Plain, Nickel, Dacromet, Galvanized, and Color Painted finishes with customization.

Fast In-Stock Delivery: Standard items available in stock with lead time within 7 days.

OEM/ODM Services: Full customization available including design, samples, and minor adjustments.

Quality Certifications: Certified with ISO, GS, RoHS, CE, and ISO9001:2008 standards.

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.