K2 Ceramic tile hook SingleHook 3S

The roof hook is the part that connects the photovoltaic panels to the timber frame of the house. It is mounted under the tile, fixed into the sloping timber beam called a rafter, and its arm comes out above the roof covering and supports the metal rail on which the panels rest. In this way, the weight of the panels and the force of the wind do not press on the tile, but are taken up directly by the load-bearing structure of the roof.

The base plate can be mounted at three different heights, at 40, 47 or 54 mm, so that the hook fits the thickness of your tile, ceramic or concrete, without cutting or grinding anything. Correct adjustment allows the tile above to sit freely, without resting on the metal, and this is exactly the reason why, with hastily made installations, cracked tiles and water ingress appear after the first winter. The hook is supplied with the K2 Climber 36/50 already fitted, so the rail is coupled directly by clipping, without additional parts to order. One hook weighs 0.576 kg and comes in boxes of 30 pieces, a quantity that usually covers an ordinary residential roof.

Article code 2003215, body in EN AW-6063 T66 aluminium and connecting elements in A2-70 stainless steel, weight 0.576 kg. Vertical adjustment of the base plate in 3 steps (40 / 47 / 54 mm), fixing on rafters with a width from 48 mm, respectively from 36 mm with M6 timber construction screws. Supplied with K2 Climber 36/50 pre-assembled and Allen screw, for direct coupling to SingleRail 36 or SingleRail 50; alternative variants available: 3S Light for reduced loads, 3S Long for large format tiles, Alpin for high snow loads. Packaging 30 pcs/box, 720 pcs/pallet, tariff code 7610 90 90.

Who it suits

Suitable for a house with a pitched roof covered with ceramic or concrete tiles, with a timber truss and rafters at least 48 mm wide, mounted on K2 SingleRail rails.

Terms explained

• Rafter: The sloping timber beam that forms the frame of the roof and on which the covering rests; it is the load-bearing part into which the hook is screwed.
• K2 Climber: The coupling part supplied already fitted on the hook, into which the rail enters by pressing, without additional screws.
• A2-70 stainless steel: A type of steel that does not rust, used for screws and parts exposed to rain for decades.

Technical specifications

Recommended applications

• Fixing SingleRail rails on roofs with ceramic tiles
• Roofs with concrete tiles, on timber rafters
• Residential photovoltaic installations on a single-family house
• Retrofit on existing roofs, where the hook height must be adapted to the tile profile

Technical details

Specifications confirmed from the manufacturer's datasheet

K2 SingleHook 3S (article code 2003215) is the standard hook of the K2 SingleRail system for pitched roofs covered with ceramic tiles or concrete tiles. The construction is mixed: the body in EN AW-6063 T66 aluminium and the connecting elements in A2-70 stainless steel, a combination that ensures corrosion resistance throughout the service life of the installation. The weight of one hook is 0.576 kg.

The main feature is the base plate, vertically adjustable in 3 positions, at heights of 40, 47 and 54 mm, which allows the hook height to be adapted to the thickness and profile of the tile without additional machining and without the tile above resting on the hook. Fixing is done on the rafter, for rafters with a width from 48 mm; on narrow rafters, from 36 mm, mounting is possible with M6 timber construction screws.

The hook is supplied with the K2 Climber 36/50 pre-assembled and with the corresponding Allen screw, so that the SingleRail 36 or SingleRail 50 rail is coupled directly, by clipping, without additional components. K2 SingleHook 3S covers, together with the 4S variant, most tile applications; for special cases there are the 3S Light (reduced loads), 3S Long (large format tiles) and Alpin (high snow loads) variants. Packaging is 30 pieces/box and 720 pieces/pallet, tariff code 7610 90 90.