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Roofing Sheet Screws (GNK Metal)

Gnkumar Exim Private Limited logo
Gnkumar Exim Private Limited
Manufacturer, Professional Services, Retailer, Distributor, Exporter, Wholesaler, Startup — Tiruchirappalli, Tamil Nadu, India · Replies in ~24–48 hours
FIEO Registered Export Ready
Price on request In stock
MOQ: 1 unit
Lead time: On request
GST invoice
Origin: India
Export ready
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Export Snapshot
Minimum order
1 unit
HSN Code
On request
Origin
India
Lead time
On request
Port of dispatch
On request
Packaging
Standard export packaging
Shelf life / storage
As per product specification
Export markets served
Global markets
Ability to customise
As per OEM brief
Values shown are for Gnkumar Exim Private Limited.
Company Gnkumar Exim Private Limited
Gnkumar Exim Private Limited logo
Gnkumar Exim Private Limited

GNKUMAR EXIM PRIVATE LIMITED is built on a foundation of 30+ years of railway engineering expertise. Our founders honed their skills working with Indian Railways — mastering precision metalwork, industrial fasteners, and large-scale infrastructure supply. This deep technical knowledge and industry experience now drives our merchant export and local trading operations. Based in Thiruchirappalli, Tamil Nadu, we specialize in Structural Fasteners, Anchor Fasteners, PRE Engineered Building, Foundation bolts & Rods, Color coated sheet. From railway tracks to export markets — our commitment to quality, precision, and reliability remains unchanged. We bring the same engineering standards that built India's railways to every product we deliver.

Registered address: Tiruchirappalli, India. Industry: Agriculture & Agri Products › Agri Produce & Finished Products.

FIEO Registered
View profile →
Established
2026
Employees
11–30
GST
33AAMCG8246R1ZS
IEC code
AAMCG8246R
Export markets
Global markets
Member since
Jul 2026
Turnover
Less than $50,000
Incorporation type
On request
Product details

Product Description

Every roof-sheet penetration creates a point that must be fastened and sealed at the same time. The source describes an EPDM rubber washer forming an airtight, leak-proof seal around the drill entry, with resistance to UV, ozone and temperature changes also stated.

The screw itself is identified as Grade C1022 heat-treated carbon steel with Corroshield anti-corrosive coating and a precision drill flute for piercing roofing sheets and steel purlins without burring or panel deformation. PPGI, PPGL and polycarbonate sheets are the named substrates. Buyers can specify the target sheet and purlin application in their enquiry. GNKUMAR EXIM Roofing Sheet Screws (GNK Metal) is described for Fastening PPGI, PPGL and polycarbonate sheets to structural purlins. Stated product facts include Product type: Roofing sheet screws / GNK Metal; Material: Grade C1022 heat-treated carbon steel; Coating: Corroshield anti-corrosive coating; Washer: High-grade vulcanized EPDM rubber washer; Drill feature: Precision drill flute. Stated functions and benefits include EPDM washer is stated to form an airtight, leak-proof seal; Corroshield coating is stated to resist salt-spray exposure and rust; Precision drill flute is stated to pierce sheets and purlins without burring or panel deformation.

Key Specifications

Product type
Roofing sheet screws / GNK Metal
Material
Grade C1022 heat-treated carbon steel
Coating
Corroshield anti-corrosive coating
Washer
High-grade vulcanized EPDM rubber washer
Drill feature
Precision drill flute
Drive type
Hex washer head

Key Benefits

EPDM washer is stated to form an airtight, leak-proof seal.
Corroshield coating is stated to resist salt-spray exposure and rust.
Precision drill flute is stated to pierce sheets and purlins without burring or panel deformation.

Frequently Asked Questions

What key specifications are stated for GNKUMAR EXIM roofing sheet screws?
Product type: Roofing sheet screws / GNK Metal; Material: Grade C1022 heat-treated carbon steel; Coating: Corroshield anti-corrosive coating.
What applications are stated for these roofing sheet screws?
Fastening PPGI, PPGL and polycarbonate sheets to structural purlins.
What performance or functional benefits are stated for these roofing sheet screws?
EPDM washer is stated to form an airtight, leak-proof seal; Corroshield coating is stated to resist salt-spray exposure and rust; Precision drill flute is stated to pierce sheets and purlins without burring or panel deformation.

Have a project-specific requirement? Send us your enquiry and our team will get back to you.

Description provided by Gnkumar Exim Private Limited.

Roofing sheet screws / GNK Metal

Grade C1022 heat-treated carbon steel

Corroshield anti-corrosive coating

High-grade vulcanized EPDM rubber washer

Precision drill flute

Hex washer head

Airtight, leak-proof seal

Fastening PPGI, PPGL and polycarbonate sheets to structural purlins

Specifications
Product Title
Roofing Sheet Screws (GNK Metal)
Store Name
GNKUMAR EXIM PRIVATE LIMITED
Product Category
machinery and tools > tools and hardware > fasteners > screws
Minimum Order Quantity (MOQ)
1
Product Type
Roofing sheet screws / GNK Metal
Material
Grade C1022 heat-treated carbon steel
Coating
Corroshield anti-corrosive coating
Washer
High-grade vulcanized EPDM rubber washer
Drill Feature
Precision drill flute
Drive Type
Hex washer head
Supported Sheet Types
PPGI, PPGL, polycarbonate sheets
Installation Target
Structural purlins
Seal Performance
Airtight, leak-proof seal
Environmental Resistance
UV, ozone, and temperature change resistance
Corrosion Resistance
Resists salt-spray exposure and rust
Surface Penetration Performance
Piersces sheets and purlins without burring or panel deformation
Supply Type
Wholesale / bulk order / factory direct / export-ready
Use cases
Category
Roofing Sheet Screws
Primary application
Brand
Product type
Product
Logistics & handling
Lead time
On request
Packaging
As per buyer requirement
Storage condition
As recommended by supplier
Origin
India
Form
As listed by supplier
Commercials Gnkumar Exim Private Limited
Minimum order
1 unit
Lead time
On request
Payment terms
As per negotiated commercial agreement
Frequently asked by buyers
What materials are used in these roofing sheet screws?

They are made from Grade C1022 heat-treated carbon steel with a Corroshield anti-corrosive coating and a high-grade vulcanized EPDM rubber washer.

What roofing materials can these screws be used with?

The stated applications are fastening PPGI, PPGL, and polycarbonate sheets to structural purlins.

What sealing performance does the EPDM washer provide?

The EPDM washer is stated to create an airtight, leak-proof seal around the drill entry.

Are these screws suitable for outdoor roofing environments?

Yes. The source states the EPDM washer resists UV, ozone, and temperature changes, and the Corroshield coating helps resist rust and salt-spray exposure.

Do these screws reduce panel damage during installation?

Yes. The precision drill flute is stated to pierce sheets and purlins without burring or panel deformation.

What is the minimum order quantity for this product?

The stated MOQ is 1.

Can this product be sourced for bulk or export orders?

Yes. The listing positions it for wholesale, bulk order, factory direct, and export-ready supply.

Question not answered? Sellers typically reply within 24–48 hours.

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