GST Registered | Wholesale Dealer | PAN India Dispatch Available
HomeProducts55mm & 25mm Self Tapping Screws
55mm & 25mm Self Tapping Screws
Fasteners
100% Prime Mill Test Certified • Authorized JSW & Jindal Sourced Material
Wholesale Industrial Supply

55mm & 25mm Self Tapping Screws

Hex-Head Self-Drilling Fasteners with EPDM Sealing Washers

Shourya Roof supplies premium-grade Self-Drilling and Self-Tapping Fasteners designed specifically for metal roofing and wall cladding assemblies. Available in 55mm length for crest fixing into roof purlins and 25mm length for valley fixing on wall cladding, our fasteners feature hardened drilling points and vulcanized EPDM rubber washers that form a 100% watertight seal that never degrades.

55mm Screws for High-Profile Roof Crest Fixing
25mm Screws for Cladding Valley Fixing & Sheet Stitching
Vulcanized Ozone-Resistant EPDM Sealing Washers for 100% Leak Prevention
Class 3 / Class 4 Ruspert Corrosion-Proof Coating
Hardened High-Carbon Steel Drills Fast Through Steel Purlins up to 6mm
Engineering Tolerances & Parameters

Technical Specifications & Material Standards

Certified parameters compliant with Indian (IS) and international structural standards.

55mm & 25mm Self Tapping Screws — Technical Data Sheet (TDS)
Crest Fixing Size
12-14 x 55 mm / 68 mm Hex Head
Valley Fixing Size
12-14 x 25 mm / 20 mm Hex Head
Head Type
5/16" (8 mm) or 3/8" Hex Washer Head
Washer System
16 mm / 19 mm Bonded Vulcanized EPDM
Drilling Capacity
Up to 6.0 mm structural steel purlin
Coating Standard
AS 3566 Class 3 / Class 4 (1000+ Hrs Salt Spray)
Profile Dimensions
Crest Height
Fits 28-30mm ribs with purlin penetration grip
Pitch Distance
Fastened at every purlin intersection
Effective Coverage
Even clamping pressure across washer
Yield Strength
Shear strength > 8.5 kN, Tensile > 15 kN
Manufacturing Standard
AS 3566.2 Class 3

Need Exact Structural Calculations?

Speak directly with our technical team in Nagpur for purlin span advice and structural weight estimates.

Call +91 99222 61637
Versatile Structural Usage

Recommended Applications

Fastening Profile Sheets to Hot-Rolled & Cold-Formed Purlins
Side-Wall Cladding Valley Fixing
Sheet-to-Sheet Lap Stitching
Flashing, Ridge, and Gutter Anchoring
Why Choose Shourya Roof Supply

Engineering Advantages

Zero Water Leaks

EPDM washer compresses into a permanent, weather-tight hydraulic seal.

No Pre-Drilling Required

Engineered drill point penetrates sheet and structural purlin in a single pass.

Long-Term Corrosion Defense

Ruspert multi-layer coating prevents galvanic rust between dissimilar metals.

Compatible Structural Accessories Available from Stock

Plain Ridge
Profile Ridge
Colour Coated Profile Sheets
Direct Wholesale Factory Pricing

Request an Official Quote for 55mm & 25mm Self Tapping Screws

Enter your approximate quantity, thickness requirement, and delivery location. Our team in Nagpur responds with competitive rates within 2 hours.

Chat on WhatsApp

Explore More Roofing & PEB Materials

Colour Coated Profile Sheets
Best Seller

Colour Coated Profile Sheets

Shourya Roof is Central India’s premier stockist and distributor of premium pre-painted galvalume (PPGL) profile sheets. Engineered from high-tensile 550 MPa steel substrates sourced directly from JSW Steel, Jindal, and AM/NS India, these sheets feature multi-layer protective paint systems (RMP, SMP, and PVDF) offering extreme corrosion resistance, UV barrier protection, and long-term aesthetic brilliance for industrial factories, commercial sheds, and warehouse roofs.

View Engineering Specs
Bare Galvalume Sheets
Highly Durable

Bare Galvalume Sheets

Bare Galvalume sheets provide the ultimate combination of structural strength and sacrificial alloy corrosion protection. Composed of 55% Aluminum, 43.4% Zinc, and 1.6% Silicon alloy coating, these sheets provide up to 4 to 6 times greater corrosion resistance compared to conventional galvanized sheets in harsh industrial, coastal, and chemical environments without needing external paint.

View Engineering Specs
Polycarbonate Skylight Sheets
Light Transmission

Polycarbonate Skylight Sheets

Shourya Roof supplies heavy-duty, co-extruded UV-protected polycarbonate daylight sheets engineered to profile-match steel roofing sheets. By allowing up to 80-85% natural daylight into factories, warehouses, and sports complexes, these sheets drastically cut electricity bills while offering 250x higher impact resistance than conventional glass.

View Engineering Specs
Call Now WhatsApp