Fasten - Self-tapping Screw ( GS-F-T625 )

Grace Solar’s GS-F-T625 Self-tapping Screw (Stainless Steel 410, St6.3x25) ensures secure fastening for solar mounting systems. Designed for quick assembly and corrosion resistance, it integrates seamlessly with Grace Solar’s AI-driven GS-Smart ground mounting solutions. With ISO-certified durability and UL/TUV approvals, this screw supports 48GW+ global installations, from residential roofs to utility-scale projects. Custom packaging available. Elevate solar installations with precision-engineered components trusted by Top 500 enterprises.

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Tags: solar mounting components , self-tapping screws , solar panel fasteners , GS-F-T625 , stainless steel screws , solar system parts , UL-certified fasteners , TUV-approved screws , solar installation hardware , Grace Solar components

Features

Premium A2-70 stainless steel solar fasteners: anti-corrosion, anti-theft design, certified for global installations.

Premium A2‑70 Stainless Steel Socket Head Screw

Manufactured from A2‑70 (304) stainless steel containing 18% chromium and 8% nickel, GS‑F‑S820 screws deliver outstanding corrosion resistance and long‑term durability in coastal and humid climates.

Anti‑Theft Stainless Steel M8 Screws

GS‑F‑AS835 anti‑theft screws feature a unique head design and hardened A2‑70 steel, thwarting tampering while ensuring reliable panel attachment under wind loads up to 60 m/s.

Precision Socket Head Screws, Sizes M8–M10

Available in M820 to M865, our GS‑F‑S8xx series ensures perfect fit and uniform clamping force for solar mounting rails, simplifying installation and maintenance.

High‑Grip Serrated Flange Nuts

GS‑F‑N208 serrated flange nuts use stainless steel A2‑70 with integrated teeth to lock securely under vibration, eliminating the need for additional washers in ground‑mount systems.

Durable Self‑Tapping and Wood Screws

Our GS‑F‑FS‑W660 and GS‑F‑FS‑W680 screws are crafted from stainless steel 410, offering rapid, one‑step installation into rails or timber substrates for roof and ground mounts.

Versatile Hanger Bolt and Assembly Kit

GS‑F‑H020 hanger bolts (M10×200) and kits include flange nuts and rubber pads for secure fixation on corrugated metal and composite roofs with no additional accessories required.

Easy‑Maintain Hexagon Nuts in M8–M12

GS‑F‑N108 to GS‑F‑N212 hex nuts, made of stainless steel A2‑70, offer high tensile strength (≤70 kgf/mm²) and smooth threading, allowing quick panel realignment during inspections.

Fast, Secure Installation with Socket‑Head Design

The GS‑F‑S830 screws’ low‑profile socket head enables rapid torque application (16–20 N·m) with standard tools, reducing labor time on large‑scale PV projects.

Custom Packaging and Size Options on Request

All Fasten components, from GS‑F‑S820 to GS‑F‑N212, are available in tailored kit packaging to suit project needs—minimizing waste and optimizing logistics.

Application

It Is Suitable For Various Power Plant Projects, Especially In Power Plant Projects With Irregular Land.

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Technical Specs

Features

● A2-70 Stainless Steel: Corrosion-resistant in -40°C~80°C, ideal for coastal/volcanic regions

● Anti-Theft System: Tamper-proof screws (GS-F-AS series) with proprietary tools

● Slope Adaptability: Supports 30°+ inclines, AS/NZS1170 wind-tunnel certified

● Global Compliance: UL, TUV, JIS, and MCS certifications ensure bankability

● Custom Packaging: Bulk or modular kits for fast on-site assembly

● Agri-PV Ready: Compatible with solar pumps for PM-KUSUM projects

Global Client Testimonials

Real Feedback from 100+ Countries

From 2013, We Working with GraceSolar for Dozens of MW Projects,

- Moira ( Managing Director )

GraceSolar Design is Very Standard and Safe, Along with Good Performance,Application and Time-efficient Fill with Technology. During Projects Executin, We Found GraceSolar Very Strict on Projects Schedule and Process. Also Would Like to Take Much Time to Study Our Requirements, and Feedback Perfect Service,We Very Satisfy and Respect This Way of Work.

- Francis ( Program Manager )

Customized Accounts Service,GraceSolar Leads Market with Best Quality Solution and Proffessional Service.

- savio ( Owner )

Project Portfolio

15-year expertise | Serving 100+ countries | 48GW+ installed globally. From deserts to polar zones, we deliver AI-driven trackers, ground/roof/carport/farm solutions, powering Fortune 500 partners with TUV/JIS/CE-certified tech.

Global Certifications

15-year expertise | Validated in 100+ countries. Full compliance with ISO 9001/14001/45001, CE/TUV/JIS/UL, Australian CEC, and wind tunnel tests, ensuring seamless market access from Asia to EMEA.