Torx Raised Countersunk Self-Tapping Roofing Screw with EPDM Washer for Timber Cladding

Name: Torx Raised Countersunk Self-Tapping Roofing Screw with EPDM Washer for Timber Cladding
Brand: Eastland Building Materials Co., Ltd.
SKU: 1926681866

Jiangsu, ChinaEastland Building Materials Co., Ltd.

US$0.50-1.50

50,000 Pieces

Product specifications

Raw Materials

Surface Treatment

Thread

Product profile

Customization

Available

Material

Carbon Steel

Type

Self-Tapping Roofing Screw

Model NO.

Torx Raised Countersunk Roofing Screw with EPDM

Groove

Torx

Connection

Screw

Head Style

Raised Countersunk

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

8.8

Application

Construction

Place of Origin

China

Brand Name

Eastland

Design Style

Modern

After-Sale-Service

Onsite Inspection

Warranty

More Than 5 Years

Transport Package

Box

Specification

Customized

Trademark

EASTLAND

Origin

Nanjing, China

Production Capacity

500, 0000 Pieces/Year

Key features

1. Reliable EPDM Sealing. The EPDM washer forms a resilient seal around the fastening point, helping reduce the penetration of rainwater, moisture and dust.

2. Secure Torx Drive. The Torx recess provides stable driver-bit engagement and efficient torque transfer while helping reduce slipping during installation.

3. Wide Pressure Distribution. The metal-backed washer distributes fastening pressure over a wider area, helping protect the roofing or cladding panel around the fixing point.

4. Firm Timber Engagement. The sharp point and coarse thread provide quick starting and reliable engagement in timber battens and other wooden substrates.

5. Controlled Panel Fastening. The raised countersunk head and partially threaded shank support secure panel positioning while the EPDM washer cushions the contact area.

Company profile

Eastland Building Materials Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/Factory, Trading Company, OtherExport Year: 2014-05-22Average Response Time: ≤9.10hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CFR, CIF

AI-Powered supplier vetting

SummaryEastland Building Materials Co., Ltd. is a China-based supplier in Nanjing, Jiangsu, associated with manufacturing activities and operating as a trading company while also being identified as a manufacturer/factory. Its stated business focuses on AAC/ALC panels, blocks, floor slabs, and related construction products. The supplier reports German-origin automated production equipment and annual capacity exceeding 1.6 million cubic meters, indicating substantial stated production capability. It lists multiple management-system certifications and serves several international regions. Exporting reportedly began in 2014, with quotations available under CFR, FOB, and CIF terms and payment accepted by LC or T/T. However, quality-control staffing, R&D engineer experience, and overall staff experience are unavailable. The available trade record shows one transaction and one associated buyer, while customer-use descriptions cover hotels, schools, villas, apartments, and shopping malls. No direct evidence establishes...

Supplier typeThe supplier is classified as a trading company in its company-nature data, while its business-entity classification also includes Trading Company and Manufacturer/Factory. Its stated activities involve developing and manufacturing AAC products, and associated companies are in manufacturing, indicating a mixed trading-and-manufacturing profile rather than a purely trading operation.

CertificationsThe supplier lists ISO 9000, ISO 9001, ISO 14001, ISO 14000, and ISO 20000 management-system certifications. This is explicit evidence of certification holdings, although the slices do not provide certificate numbers, validity dates, or scope details.

Production capacityThe supplier reports fully automatic German production lines and machines, annual production capacity exceeding 1.6 million cubic meters, and manufacturing of AAC panels and blocks. It also reports lead times within 15 working days in both off-peak and peak seasons, providing explicit evidence of substantial stated production capability, although quality-control staffing data is unavailable.

Client casesThe supplier states that its AAC panels have been used in hotels, schools, villas, apartments, shopping malls, and other buildings. The trade record also identifies one associated buyer and one transaction, but it does not provide independently verifiable project names, quantities, locations, or references.

Product Q&A

Q:What applications is this roofing screw suitable for?

It is suitable for fastening roofing sheets, cladding panels and related components to timber battens, wooden purlins and other wood-based substrates.

Q:What is the function of the EPDM washer?

The EPDM washer helps seal the fastening point against rainwater, moisture and dust. It also cushions the contact between the screw assembly and the panel surface..

Q:Can this screw be used with steel purlins?

This sharp-point version is primarily designed for timber substrates. For steel purlins, a suitable self-drilling roofing screw should be selected according to the steel thickness.

Q:Is this a self-drilling screw?

No. It is a sharp-point self-tapping roofing screw, not a drill-point screw. It should not be described as a TEK screw.

Q:How should the EPDM washer be installed?

Pre-drilling may not be required for many softwood applications. A pilot hole is recommended for hardwood, thin boards or installation close to the material edge.