Solar Mounting Systems

K2 T Bolt M8x20 with Wider Head 28/15

T Bolt to be placed anywhere into the c-cell of the rail. It can be placed and readjusted to any place of the rail.

• Head: 28/15 with four cornered shaft
• Material: Stainless steel A2 (1.4301)
• Thread of screw: M8x20 mm

Also available in a box of 100 units.

K2 T Bolt M8x30

T bolt to be placed anywhere into the c-cell of the rail. It can be placed and readjusted to any place of the rail.

• Head form: 28/15
• Head dimensions: 22.5 × 10.5 × 4 mm
• Material: Stainless steel A2 (1.4301)
• Thread of screw: M8x30 mm

Also available in a box of 100 units.

K2 TerraGrif K2SZ

Mounting accessories for establishing equipotential bonding of the K2 mounting systems or for earthing the module frames. 

** Incompatible systems: BasicRail (landscape mounting).

Material: stainless steel 301 TA

K2 Thread-Forming Metal Screw 4.8x20mm

K2 Self-tapping screw with mounted EPDM supported washer. Hexagon screws for the connection of mounting rails and rail connectors, as well as for the SpeedClip assembly.

FEATURES:

• Dimension: 4.8x20 mm
• Material: Stainless steel A2, EPDM

Also available in a box of 500 units.

K2 TiltUp Vento Beam 1.30m

Top beam for the TiltUp Vento system.

• Scope of application: flat roof
• Length: 1.30m
• Material: aluminium EN AW 6060 T66

Also available in a bundle of 75 units.

K2 TiltUp Vento Beam 1.60m

Top beam for the TiltUp Vento system.

• Scope of application: flat roof
• Length: 1.60m
• Material: aluminium EN AW 6060 T66

Also available in a bundle of 75 units.

K2 TiltUp Vento Beam 2.36m

Top beam for the TiltUp Vento system.

• Scope of application: flat roof
• Length: 2.36m
• Material: aluminium EN AW 6060 T66

Also available in a bundle of 75 units.

K2 TiltUp Vento Brace 679mm

Back brace for the TiltUp Vento system.

• Scope of application: flat roof
• Length: 679mm
• Material: aluminium EN AW 6060 T6

Also available in a 1,716/Pallet.

K2 TiltUp Vento Brace 856mm

Back brace for the TiltUp Vento system.

• Scope of application: flat roof
• Length: 856mm
• Material: aluminium EN AW 6060 T6

Also available in a 1,320/Pallet.

K2 TiltUp Vento Brace 1,047mm

Back brace for the TiltUp Vento system.

• Scope of application: flat roof
• Length: 1,047mm
• Material: aluminium EN AW 6060 T6

Also available in a 858/Pallet.

K2 TiltUp Vento Brace 446mm

Back brace for the TiltUp Vento system.

• Scope of application: flat roof
• Length: 446mm
• Material: aluminium EN AW 6060 T6

Also available in a 1,716/Pallet.

K2 TiltUp Vento Brace 558mm

Back brace for the TiltUp Vento system.

• Scope of application: flat roof
• Length: 558mm
• Material: aluminium EN AW 6060 T6

Also available in a 1,716/Pallet.

K2 TiltUp Vento Foot

For the connection between the concrete foundation and the TiliUp Vento Brace.

• Scope of application: flat roof
• Material: Aluminium EN AW 6063 T66

Also available in a 9600/Pallet and 400/Box.

K2 TiltUp Vento Spring Plug

Spring plug DIN 11024.

• Scope of application: flat roof
• Material: Stainless steel A2-AISI304

Also available in a 100/small box, 1,500/box, 6,000/Pallet.

K2 TiltUp Vento Pin

Pin for connecting the TiltUp Vento profiles.

• Scope of application: flat roof
• Length: 65mm
• Diameter: 8mm
• Material: Stainless steel, 1.4301 (X5CrNi18-10) TS520

K2 Universal End Clamp One SILVER 30-42mm

Universal clamp (end clamp) with easy "click" function for the SingleRail (36,50,63), CrossRail (36,48,80), UltraLight(32), Light (37), SpeedRail (22), MultiRail, ClampRail and CoverRail pitched roof systems, as well as for the S-Domeand D-Dome flat roof systems.

FEATURES:

• Module frame heights: 30-42mm
• Dimensions: 65 x 33 x 66.8 mm
• Material: EN AW 6063 T66 / EN AW 6082 T6 / A2 / POM

Also available in a box of 20 units.

K2 Universal KL-Clamp – Box of 20

K2 sheet metal seam clamp for Klip-Lok 700 Hi-strength® and Klip-Lok Optima® 700 (Lysaght ™) sheet metal roofing; KingKlip® 700 (Fielders®); Klip-Lok® 406 (Lysaght ™).

With direct connection option for K2 module clamps.

Material: Aluminium EN AW 6063-T66

K2 Universal Mid Clamp One SILVER 30-42mm

Universal clamp (mid clamp) with easy "click" function for the SingleRail (36,50,63), CrossRail (36,48,80), UltraLight (32), Light (37), SpeedRail (22), MultiRail, ClampRail and CoverRail pitched roof systems, as well as for the S-Dome and D-Dome flat roof systems.

FEATURES:

• Module frame heights: 30-42mm
• Dimensions: 65 x 37 x 65.6 mm
• Material: EN AW 6063 T66 / EN AW 6082 T6 / A2 / POM

Also available in a box of 20 units.

S-5! Seam Clamp

For fastening of K2 System parts on standing seam metal roofs.

Available to order within 2-3 working days. Contact sales on 020 3763 7000 or at sales@alternergy.co.uk.

S-5-GXM 10 Mini insert

S-5-GXM 10 Mini insert - specifically for use with the S-5-K Grip Mini clamp.

GXM-10 insert is suitable for use on:

• SpeedDeck® SpeedDeck®
• LYSAGHT KLIP-LOK® 406
• McElroy Metal Mirage
• AEP Span Klip-Rib®
• Metal Sales Clip-Loc
• Safintra Saflok 410
• Safintra Saflok 700
• Domico Dach®And other similar profiles

Please refer to product datasheet for full list of compatible roof materials.

Note: K-Grip seam clamps can come with 2 different ‘mini inserts’: one smaller S-5-GXM 50 (Mini) and one bigger S-5-GXM 10 (Mini), which is more popular in this country. Still, it's important to check if the insert you require fits in the roof covering before ordering.

S-5-GXM 50 Mini insert

S-5-GXM 50 Mini insert - specifically for use with the S-5-K Grip Mini clamp.

GXM-50 insert is suitable for use on:

• LYSAGHT KLIP-LOK Classic® 700
• LYSAGHT KLIP-LOK 700 Hi-Strength®
• Stramit® Speed Deck Ultra®
• Fielders KingKlip® 700
• And other similar profiles

Please refer to product datasheet for full list of compatible roof materials.

Note: K-Grip seam clamps can come with 2 different ‘mini inserts’: one smaller S-5-GXM 50 (Mini) and one bigger S-5-GXM 10 (Mini), which is more popular in this country. Still, it's important to check if the insert you require fits in the roof covering before ordering.

S-5-K Grip Mini clamp

The S-5-K Grip Mini clamp was specifically developed to fit Klip-Rib® and other bulb snap-together seams. The design utilizes multiple inserts (sold separately) in order to accommodate a variety of bulb snap-together profiles. Each insert has a unique shape that allows for a tight fit and provides increased holding strength over other attachment options. Compatible with most common metal roofing materials excluding copper.

The S-5-K Grip Mini is a bit shorter than the S-5-K Grip and has one base bolt rather than two.

All included hardware is stainless steel. Each mini clamp is supplied with 1 x M8 bolt.

S4 Double Clamp Black with EPDM (H30)

This product is an H30 reinforced double clamp in black, which can be used to securely hold two adjacent solar module frames in place.

Details:

• Frame compatibility: Designed to fit a 30 mm panel frame thickness
• Double Clamp Design: Functionally acting as a mid-clamp, it securely holds the frames of two adjacent modules simultaneously to a shared mounting rail
• Finish: Black (aesthetic & corrosion resistance)
• Sealing: EPDM rubber pad to provide weatherproofing and protection between the clamp and panel frame

S4 Flashing hook

Hook plate for securing the side flashing on S4 roof-integrated solar PV installations. Can also be used to fasten the optional top flashing strips.

S4 Height Riser – Tile & Slate

The S4 Height Riser is designed for solar PV installations on tile and slate pitched roofs.
It provides adjustable height to ensure panels are correctly aligned on uneven roof surfaces, helping to maintain optimum panel angles and consistent rail alignment.

S4 Large Lateral Extension

The S4 Large Lateral Extension is designed to extend the lateral flashing or frame support in S4 roof-integrated mounting systems. It provides longer coverage where standard lateral flashing pieces are insufficient, enabling more flexible and complete edge sealing around large PV arrays. This extension maintains a weather-resistant perimeter while integrating seamlessly with the mounting system.

S4 Large Lateral Extension for Vertical Extension

The S4 Large Lateral Extension is designed to extend the S4 Vertical Extension. This extension maintains a weather-resistant perimeter while integrating seamlessly with the mounting system.

S4 Lateral Adaptors for Array Ends for S4 Vertical Extension

The S4 Lateral Adaptors are mounting accessories designed to provide secure end-of-array support and connection in the S4 universal in-roof mounting system. These adaptors provide neat and stable attachment points at the ends of the photovoltaic (PV) array, ensuring consistent alignment and load distribution for the panel rows. 

S4 Lateral Adaptors for PV Array Ends 

The S4 Lateral Adaptors are mounting accessories designed to provide secure end-of-array support and connection in the S4 universal in-roof mounting system. These adaptors provide neat and stable attachment points at the ends of the photovoltaic (PV) array, ensuring consistent alignment and load distribution for the panel rows. 

S4 PV Panel Support Pins

The S4 PV Panel Support Pins are designed to provide consistent support and positioning for solar photovoltaic (PV) panels during installation on S4 in-roof mounting systems. These support pins help maintain the correct panel spacing and alignment, thereby reducing stress on the array and facilitating load distribution. 

S4 Pre Compressed Seal Roll (5m)

The S4 pre-compressed seal roll (5m) is a high-performance EPDM sealing strip designed for use with S4 In-Roof mounting systems.  
The roll provides a continuous, waterproof perimeter seal around the edges of a rooftop PV array where the flashing interfaces with roof tiles or other surfaces. The pre-compressed material expands slightly once installed, filling gaps and irregularities for enhanced weather resistance.

• Roll Length: ~ 5 metres
• Seal: EPDM rubber

S4 Screw 6.5X25mm - EPDM - A2/Frame Fixing

A self-tapping fastening screw with EPDM designed for solar PV and structural frame fixing. It features:

• Size: 6.5 × 25 mm - length suitable for frame fixing
• Head: Hex for secure tightening
• Seal: EPDM washer included - provides weatherproofing and sealing at the penetration point to reduce water ingress
• Material: A2 stainless steel - corrosion-resistant grade for outdoor exposure

S4 Screw 6.5X60mm - EPDM - A2 – Black

A self-tapping fastening screw designed for roof-integrated PV and related metal/aluminium installations. It features:

• Size: 6.5 × 60 mm — suitable for fixing clamps, rails, brackets and other mounting hardware
• Head & Finish: Black coated head for corrosion resistance and aesthetic match with black mounting components
• Seal: EPDM washer included — provides weatherproofing and sealing at the penetration point to reduce water ingress
• Material: A2 stainless steel — corrosion-resistant grade for outdoor exposure

Perfect for use with solar mounting clamps and frames where waterproof sealing is required.

S4 Single Clamp Black with EPDM (H30)

This product is an H30 reinforced single clamp in black, which can be used to secure a PV panel frame to a mounting rail or structural frame.

Details:

• Frame compatibility: Designed to fit a 30 mm panel frame thickness
• Finish: Black (aesthetic & corrosion resistance)
• Sealing: EPDM rubber pad to provide weatherproofing and protection between the clamp and panel frame

S4 Single Clamp Black with EPDM (H35)

This product is an H35 reinforced single clamp in black, which can be used to secure a PV panel frame to a mounting rail or structural frame.

Details:

• Frame compatibility: Designed to fit a 35 mm panel frame thickness
• Finish: Black (aesthetic & corrosion resistance)
• Sealing: EPDM rubber pad to provide weatherproofing and protection between the clamp and panel frame

S4 Small Lateral Extension

The S4 Small Lateral Extension is designed to extend the lateral flashing or frame support in S4 roof-integrated mounting systems. It provides longer coverage where standard lateral flashing pieces are insufficient, enabling more flexible and complete edge sealing around large PV arrays. This extension maintains a weather-resistant perimeter while integrating seamlessly with the mounting system.

S4 Small Lateral Extension for Vertical Extension

The S4 Small Lateral Extension is designed to extend the S4 Vertical Extension. This extension maintains a weather-resistant perimeter while integrating seamlessly with the mounting system.

S4 Universal Frame

The S4 Universal Frame is a key structural component in the S4 universal solar mounting system designed to support photovoltaic (PV) panels on a variety of roof types and installation scenarios. Manufactured from robust corrosion-resistant aluminium, the universal frame provides a rigid and reliable support structure for solar modules, ensuring optimal alignment, load distribution, and long-term durability.

The universal design simplifies installation and reduces inventory complexity by enabling compatibility across multiple roof profiles and PV module layouts within the S4 mounting platform. Its premium construction ensures it withstands harsh outdoor conditions while maintaining structural integrity over the lifetime of the solar installation. 

S4 Universal Lateral Flashing - Black

The S4 Universal Lateral Flashing is a black aluminium finishing component designed to provide a weatherproof and aesthetically pleasing seal along the sides of a solar PV array. It protects the edges of the installation against water ingress and integrates seamlessly with the overall design to maintain durability and a professional finish. 

Key Features:

• Lateral Sealing Protection: Designed to seal the sides of the PV array and prevent water penetration. 
• Universal Compatibility: Works with all S4 in-roof frame types when used as lateral flashing. 
• Durable Construction: Made from weather-resistant aluminium with a sleek black finish. 
• Professional Appearance: Provides a seamless edge that enhances the visual finish of the PV installation.
• Length: 1290mm

S4 Vertical Extension

The S4 Vertical Extension adapter provides additional height and optimises panel alignment.

Clearline Fusion G1 landscape corner conversion kit, left bottom corner (centre panel above)

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 landscape corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 2200 x 430 x 100 mm

Viridian Clearline Fusion G1 landscape corner conversion kit, left bottom corner (left panel above)

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 landscape corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 2200 x 430 x 100 mm

Viridian Clearline Fusion G1 landscape corner conversion kit, right bottom corner

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 landscape corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 2200 x 430 x 100 mm

Viridian Clearline Fusion G1 landscape corner conversion kit, right top corner

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 landscape corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 2200 x 430 x 100 mm

Clearline Fusion G1 landscape roofing kit, Centre

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 landscape corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 2200 x 430 x 100 mm

Viridian Clearline Fusion G1 landscape roofing kit, Left

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 landscape corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 2200 x 430 x 100 mm

Viridian Clearline Fusion G1 landscape roofing kit, Right

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 landscape corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 2200 x 430 x 100 mm

Clearline Fusion G1 landscape roofing kit, Row

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 landscape corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 2200 x 430 x 100 mm

Viridian Clearline Fusion G1 landscape roofing kit, single panel

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 landscape corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 2300 x 430 x 100 mm

Clearline Fusion G1 portrait corner conversion kit, left bottom corner (centre panel above)

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 portrait corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 1900 x 430 x 100 mm

Viridian Clearline Fusion G1 portrait corner conversion kit, left bottom corner (left panel above)

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 portrait corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 1900 x 430 x 100 mm

Viridian Clearline Fusion G1 portrait corner conversion kit, left top corner

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 portrait corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 1900 x 430 x 100 mm

Viridian Clearline Fusion G1 portrait corner conversion kit, right bottom corner

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 portrait corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 1900 x 430 x 100 mm

Viridian Clearline Fusion G1 portrait corner conversion kit, right top corner

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 portrait corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 1900 x 430 x 100 mm

Viridian Clearline Fusion G1 portrait roofing kit, Centre

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 portrait corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 1900 x 430 x 100 mm

Viridian Clearline Fusion G1 portrait roofing kit, Left

Viridian Clearline Fusion roofing kit works universally with both slate and tile roofs. Corner conversion kits allow the creation of non-rectangular shapes to get the most out of all roof shapes and sizes. The Clearline Fusion G1 portrait corner conversion kits are suitable for PV16-G1 solar modules.

Roof-integrated solar has always been the obvious choice when refurbishing or building a new roof. Clearline Fusion brings high quality roof integration within reach for retrofit applications. Roof integrated panels sit lower to the roofline, without brackets and racking on show, to look like an intended part of the roof.

Dimensions: 1900 x 430 x 100 mm