01 — Thread
Precision
It starts with a single thread.
Hex Head Self-Drilling Screw Specialist
High-Performance Hex SDS Screws (19 mm to 65 mm)
Metacore Fasteners manufactures high-tensile Hex Washer Head Self-Drilling Screws engineered for fast, reliable steel-to-steel and roofing installations.
About Metacore Fasteners
Metacore Fasteners specializes in the manufacturing and supply of high-performance Hex Washer Head Self-Drilling Screws (SDS). Designed for high-speed installation without pre-drilling, our fasteners deliver exceptional drillability, pull-out strength, and corrosion resistance.
Focused exclusively on precision Hex Head SDS, we collaborate with roofing contractors, pre-engineered building (PEB) fabricators, and industrial manufacturers to deliver defect-free fasteners engineered to DIN 7504 K standards.
- Specialization
- Hex Head SDS
- Headquarters
- Vapi, Gujarat, India
- Business Type
- Specialized Manufacturer & Supplier
What we offer
- High-speed cold-forging and thread-rolling for consistent drill point alignment
- Standard lengths strictly stocked in 19 mm, 25 mm, 35 mm, 45 mm, 50 mm, and 65 mm
- Multi-layer corrosion protection including Class 3, Zinc Electroplating, and Ruspert coatings
- Integrated bonded EPDM washer assemblies for leak-proof roofing applications
- Large-scale batch production with flexible minimum order quantities (MOQs)
Engineered to drill, tap, and seal in a single operation.
02 — Hold
Connection
Everything worth building is held together.
03 — Load
Strength
Small parts. Serious loads.
Products
Hex Head Self-Drilling Screws (SDS) in lengths from 19 mm to 65 mm, engineered for fast installation without pre-drilling.
Size Range
Diameter: ST 5.5 (#12 gauge) exclusively. Stocked Lengths: 19 mm, 25 mm, 35 mm, 45 mm, 50 mm, and 65 mm.
Stocked Lengths
Ready inventory across every stocked length for fast dispatch.
Head Type
Hex Washer Head, 8 mm (5/16") across flats (A.F.), 14 TPI, EPDM Washer – 11 mm.
Materials & Hardness
Case-hardened Carbon Steel C1022, Stainless Steel AISI 410, Bi-Metal (304/316 SS body with hardened steel tip).
Finishes & Coatings
Yellow/Clear Zinc Plated, Ruspert / Silver Slide Coating, Class 3 / Class 4 Armor Coatings.
Drill Point Capacity
ST 5.5 with a #3 point for standard purlin and roofing steel up to 4.5 mm; #4 and #5 points for heavy-duty steel up to 12.5 mm.
Installation Guidance
Drive at 1,500–2,200 RPM and stay within the maximum recommended seating torque to avoid damaging the EPDM washer.
Packaging
19 mm – 25 mm: 1,000 pcs per box. 35 mm – 50 mm: 500 pcs per box. 65 mm: 250–300 pcs per box.
Industries & Applications
Where Metacore Hex Head SDS are used: roofing, steel buildings, HVAC, solar and industrial manufacturing.
Metal Roofing & Cladding
Securing trapezoidal profile sheets and sandwich panels to purlins.
Pre-Engineered Buildings (PEB)
Structural steel framing, girt-to-flange connections, and side-lap joints.
HVAC & Ductwork
Heavy-duty sheet metal duct assembly and bracket mounting.
Solar & Structural Framing
Mounting solar panel rails to aluminum/steel sub-structures.
Industrial Machinery & Enclosures
Fastening heavy gauge steel covers and structural plates.
Capabilities & Services
Support across the supply process, from sourcing to delivery.
Manufacturing & Sourcing
Dedicated cold-heading, point-forming, and thread-rolling machinery for Hex SDS production.
Custom Variations
Drill Point #3 for steel up to 4.5 mm; #4 and #5 points for heavy-duty steel up to 12.5 mm.
Finishes & Coatings
Electro-zinc coating, organic Ruspert finish (1000–1500 hrs salt spray test), and Class 3 weather barrier coatings.
Packaging & Delivery
Box packs of 1,000 pcs (19–25 mm), 500 pcs (35–50 mm) and 250–300 pcs (65 mm), plus custom labeling for distributors.
Technical Support
Drive at 1,500–2,200 RPM and respect the maximum seating torque to protect the EPDM washer and prevent head breakage.
Stocking Arrangements
Ready inventory across all standard lengths (19 mm – 65 mm) for fast dispatches.
Quality & Standards
Zero-defect policy focused on drill-point sharpness, thread engagement, and head stability.
Material Verification
Wire rod chemical analysis and grain structure testing for proper heat-treatment response.
Inspection & Testing
Drilling speed tests (penetration time under specified RPM/load), hardness gradient checks (core vs. case hardness), torque-to-yield testing, and salt-spray corrosion chamber testing.
Standards
DIN 7504 K, ISO 15480, ASTM C1513, BS standards.
Documentation
EN 10204 3.1 Test Certificates, Salt Spray Test Reports, Dimensional Inspection Certificates.
Certification
ISO 9001:2015
Quality Management System
Why Choose Metacore Fasteners
Quality
Fully hardened points engineered to drill and tap without pilot holes or dulling.
Reliability
Weather-resistant EPDM washers and high salt-spray coatings eliminate leaks and rust failures.
Focused Range
A single ST 5.5 (#12) diameter in 19 mm to 65 mm lengths, for light to heavy steel applications.
Customisation
Available in drill points #3 to #5 and a choice of protective finishes.
Delivery & Lead Times
High stock availability for standard sizes guarantees swift order turnaround.
Customer Support
On-site drilling trials, torque recommendations, and technical support.