McCoy Rock Series Heavy Duty Friction Stay SS304 Grade is made for large, heavy, top-hung windows and ventilators (vents). This product is engineered using advanced materials and technology focusing on performance and durability, which serves well in residential and commercial setups.
Key Features and Benefits:

Heavy Duty 6-bar Friction Hinges
The McCoy Rock Series has a range of strong 6-bar focusing Hines manufactured from SS304 austenitic steel. This material is of high quality, reinforcing strength and enabling the use of this product with more enormous, heavier windows and ventilators (vents). Heavy-duty six-bar design increases support and stability of the unit, encouraging smooth operation with the ability to handle high-weight loads.
Grade V Corrosion Resistance
Please note that corrosion resistance is a factor that is necessary for consideration while selecting components for architectural work, such as those in moist or saline areas. The McCoy Rock Series friction stays are grade-V rated as they have successfully withstood salt spray test for 500 hours. This extensive testing demonstrates its ability to withstand corrosive environments, ensuring durability and low maintenance costs, with minimal tendency for the material to corrode.
Passivation Grade PREN 20
The surface treatment of the SS304 steel provided on this product has a PREN 20 rating, indicating that the SS304 steel is less prone to pitting corrosion, which is highly likely to occur in severe environments. In addition, the material demonstrates minimum intergranular corrosion, and hence, it can be used in coastal and industrial applications where corrosive elements are present.
Self-Balancing Provides Excellent Weather Sealing
McCoy Rock Series Heavy Duty Friction Stay rigid design structure is to provide stability for better alignment, allowing the vent to stay in the required slot without manual correction. This aspect combines well with the former by increasing the weather seal to minimize the chance of drafts developing and water entry from outside. Such performance is especially critical for providing structural protection in cases where weather conditions are pretty extreme.
High Load Capacity
These friction stays are designed with a 100-130 Kg per pair weight limit, which allows for the use of a larger and heavier window. It is designed for windows and ventilators with DGU and laminated glasses. Due to this, the top-hung vents are well suited to ease of operation and rough service life in a unit without weakening the system's reliability overall.
Precision Engineering: Stack Height and Bar Thickness
McCoy Rock Series includes a stack height of 16.5 mm and a bar thickness of 3 mm. Combining all these factors ensures the systems offer good efficiency whilst retaining a decent level of strength. The combination of engineering guarantees a long, smooth operation, which brings excellent cost-effective solutions to customers by architects, builders, and property owners.
Available Sizes
McCoy Rock Series heavy-duty friction stay is available in sizes from 18 to 28 inches. This makes it perfect for residential windows, large commercial facades, or architectural installations.
Why Choose McCoy Rock Series Heavy Duty Friction Stay?
McCoy Rock Series is not just another type of hinge. It’s a well-designed hinge aimed at the modern building, which requires performance, durability, and aesthetics. Stainless steel 304, high corrosion resistance, and heavy load-bearing capacity make this friction stay unique compared to others in the market. Its self-balanced and weatherproof features will guarantee its utility for a more extended period.
For high rises, residential estates, or commercial buildings, McCoy Rock Series Heavy Duty Friction Stay guarantees top performance and safety for top-hung vent installations in buildings.
McCoy Rock Series Heavy Duty Friction Stay SS304 Grade is an exceptional option for projects that require dependable, high-quality corrosion, corrosion-resistant, and heavy-duty hardware. The fine quality of this friction stay, its load-bearing abilities, and superb weather-sealing functions make it especially suitable for large top-hung windows and ventilators (vents). If you are concerned about durability and functionality, allow McCoy Rock Series to prove itself as reliable hardware that will endure the test of time.
McCoy Rock Series Heavy Duty Friction Stay Product description link: https://www.mccoy8m.in/rock-friction-stay
Need assistance with aluminium and uPVC products? Call us today at +91-8010434434 or email order@mccoygroup.in. We would love to assist you.
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