Picture of K2 Hex Socket Head Cap Screw M8x20

K2 Hex Socket Head Cap Screw M8x20

£0.21

Precision fixing for solar rail and bracket systems – the K2 M8x20 Cap Screw offers robust clamping in a compact format.

  • Socket head design for high torque tightening
  • M8 thread with 20 mm length – perfect for solar rails
  • Corrosion-resistant stainless steel

Why We Recommend This Product: A solid, professional-grade fixing used in many K2 rail-to-bracket assemblies and mounting structures.

SKU: K2-2001729
Free and easy returns | Easy to Install | Professional Installers Available
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K2 Socket Head Cap Screw M8x20: Compact Strength for Solar Panel Mounting

For tight, secure and flush connections in solar racking systems, the K2 M8x20 Socket Head Cap Screw offers a clean finish and dependable strength. It’s a go-to fixing in many K2 solar mounting assemblies, especially where space is limited but holding force can’t be compromised.

Socket Head Design for Easy Torque Application

Designed for use with a standard Allen key or hex wrench, this screw’s recessed socket head allows it to sit neatly within brackets or channel slots without protruding. This ensures a smooth, professional finish – critical in solar systems exposed to the elements.

  • Allows precision torque adjustment
  • Prevents over-tightening or stripping
  • Neatly recessed head for snag-free placement

M8 x 20 mm – Optimised for K2 Rail Compatibility

With an 8 mm thread and 20 mm length, this screw is commonly used in conjunction with T-bolts, serrated nuts, and connector plates throughout the K2 range. It’s short enough to avoid bottoming out, but long enough to create a reliable bond even in dynamic load applications.

Why Evergy Recommends This Product

  • Reliable fit in K2 solar mounting systems
  • Resists rust and corrosion over the long term
  • Delivers consistent results with standard tools

Where This Screw Works Best

Ideal for:

  • Securing K2 Dome rail connectors and brackets
  • Structural clamping in rail-to-base connections
  • Solar racking on pitched or flat roofs

Technical Specifications

  • Thread size: M8
  • Length: 20 mm
  • Weight: 0.02 kg

Delivery & Trade Supply

All Evergy fixings, including this item, qualify for free UK delivery. We also offer bulk packs and pallet delivery for commercial installers – refer to the Delivery tab for full info.

Explore More Solar Essentials

Ensure a complete and compliant system with:

Free delivery - 

NEXT DAY Delivery to Oxfordshire, Buckinghamshire and London via an EVERGY vehicle. Max of 1 ton weight.

 

Other delivery options via courier - 

FREE NEXT DAY (*orders over £50, some batteries and inverters will require an additional fee) via FEDEX. Monday to Friday, up to 30kg, Max box size 50cm x 50cm x 50cm (volume). Orders must be received by 2pm.

Anytime NEXT DAY delivery – under £50 = £6.50 (depending on location, weight and size)

 

Regardless of spend, additional to any of the above charges – 

Before noon (FedEx Priority Express) = Guide Price £15.00 (calulated at checkout)

Before 10am (FedEx First) = Guide Price £20.00 (calulated at checkout)

 

Delivery of pallets - 

Palletised deliveries – Prices starting at £58

Multiple pallet orders can be quoted upon request (price dependent on number of pallets and postcode area)


Special delivery items may vary (non-stock products).

SAME DAY COLLECTION - Click & collect from Evergy Stores (Thame, Oxfordshire).

Picture of K2 Hex Socket Head Cap Screw M8x20

K2 Hex Socket Head Cap Screw M8x20

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