K2 Hexagon Flange Nut with Serration M8

£0.11

Secure your PV structure with confidence using the K2 M8 Flange Nut with integrated serration – ideal for high-vibration environments.

M8 size with inbuilt serrated flange for anti-slip locking
Perfect for mounting rails and brackets in PV systems
Strong corrosion resistance for long-term reliability

Why We Recommend This Product: A small but vital part that ensures solid fastening in every solar array – trusted for use with K2 systems.

SKU: K2-1000043

Free and easy returns | Easy to Install | Professional Installers Available

K2 Flange Nut M8 Serrated: The High-Grip Fastener for Solar Installers

Don’t let small components undermine your installation. The K2 M8 Flange Nut with Serration offers a secure, self-locking grip that’s purpose-built for photovoltaic mounting applications – especially where movement, vibration or wind loading could loosen conventional fixings.

Engineered Grip for Stability

The integrated serrated flange increases surface contact and provides a biting grip against metal rail components, eliminating the need for separate washers or locking agents. This ensures the connection stays tight and safe over time – a must-have for sloped and exposed solar mounting environments.

High-torque retention with minimal slippage
Optimised for use with K2 rail components
Supports long-term mechanical performance

Corrosion-Resistant for Outdoor Use

According to the manufacturer, this flange nut is made from high-grade stainless steel with enhanced corrosion resistance, making it ideal for UK climates where rain, snow, and humidity can degrade fixings over time.

Why Evergy Recommends This Product

Proven reliability in high-load PV frame assemblies
Compact, simple, and compatible with M8 K2 fasteners
Supports a wide range of solar mounting systems

Compatible Applications

Perfect for use in:

Pitched and flat roof solar racking
EV carport and canopy structures
Any project using K2 M8 rail fastenings

Technical Specifications

Dimensions: 20 x 20 x 10 mm
Weight: 0.01 kg
Thread: M8 with integrated flange serration

Delivery Details

This item qualifies for free UK delivery. Bulk packs are available for installers and distributors. For palletised orders, check our Delivery tab.

Build a Complete PV Fixing Kit

Pair this nut with other M8 K2 components, or explore related categories:

Buy solar panels to match your mounting system
Shop solar cabling and connectors
Need help? Contact our technical team

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).