Renusol Serrated Flange Nut M8 - REN-900001 | DIN 6923 Stainless Steel Solar Mounting Fastener

Description

The Renusol Serrated Flange Nut M8 (Part No: REN-900001) is a standard fixing component used throughout the Renusol solar mounting range, pairing with the M8 hammerhead bolt to secure mounting rails, roof hooks, and brackets. Manufactured to DIN 6923 A2-70 stainless steel specification, the nut features an integrated serrated flange face that acts as a built-in locking washer.

The serrated underside bites into the mating surface as the nut is tightened, resisting loosening from vibration and thermal cycling — an important detail for outdoor solar mounting hardware exposed to weather and wind loading over the system's lifetime.

M8

Thread Size

DIN 6923

Standard

A2-70

Stainless Steel Grade

Serrated

Flange Type

Self-Locking

Function

Renusol VS+

System Compatibility

Compatibility Warning

Renusol mounting equipment must not be used with mounting equipment from other suppliers. Doing so would inevitably void the warranty of the mounting system.

Typically Paired With

This nut is designed to be used with the Renusol Hammerhead Bolt M8x25 (REN-900007) and is a common component across many Renusol roof hooks, brackets, and rail connection sets.

Key Features

Integrated Serrated Locking Flange

The serrated underside bites into the mating surface as the nut is tightened, providing vibration resistance without a separate washer.

A2-70 Stainless Steel

Manufactured to DIN 6923 A2-70 stainless steel specification for strong, long-term corrosion resistance outdoors.

No Washer Required

The wide flange distributes clamping pressure across the mating surface, removing the need for a separate washer.

M8 Thread — Renusol System Standard

The M8 thread size matches the hammerhead bolts used throughout the Renusol VS+ roof hook and rail range.

Compact, Easy-Stock Component

A small, lightweight fixing that's easy for installers to keep as spare stock alongside larger mounting hardware orders.

Used Across the Renusol Range

This nut appears as a component in multiple Renusol roof hook and bracket kits, making it a useful spare or replacement part.

Technical Specifications

General

Part Number

REN-900001

Product Name

Hexag. Flange Nut with Serration M8

Manufacturer

Renusol

System Compatibility

Renusol VS+ / VarioSole+ mounting range

Fastener Specification

Thread Size

M8

Standard

DIN 6923

Material Grade

A2-70 stainless steel

Flange Type

Serrated

Function

Self-locking hexagon flange nut

Typical Pairing

Bolt

Renusol Hammerhead Bolt M8x25 (REN-900007)

Frequently Asked Questions

What bolt is this nut designed to pair with?

This nut is designed to be used with the Renusol Hammerhead Bolt M8x25 (REN-900007), a common pairing across many Renusol roof hooks and brackets.

Does this nut need a separate washer?

No. The serrated flange face distributes clamping pressure and locks against the mating surface, removing the need for a separate washer.

What material and standard is this nut made to?

It is manufactured to DIN 6923 A2-70 stainless steel specification, giving strong corrosion resistance for outdoor solar mounting use.

Why does the flange have serrations?

The serrated underside bites into the mating surface as the nut is tightened, helping resist loosening from vibration and thermal cycling over time.

Is this a Renusol-specific part or a generic DIN 6923 fastener?

It follows the generic DIN 6923 A2-70 M8 serrated flange nut standard, supplied and stocked by Renusol as a component within their VS+ mounting system kits.

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