# 21419085 Flange Screw | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine flange-head screw manufactured to the Volvo Penta thread, length, strength grade, flange diameter and corrosion-protection specification assigned to part number 21419085.

## ⚙️ Key Features

-   Integrated load-spreading flange
-   Application-specific thread and installed length
-   Factory strength and surface treatment
-   Designed for the assigned engine or drive clamping load
-   Tightening torque must be taken from the exact service procedure

## 🔌 Function

The screw secures the assigned component and distributes clamping load through its integrated flange.

## ⚠️ Common Signs of Failure

-   Screw found backed out or slack at inspection
-   Movement, rattle or a leak at the joint it clamps
-   Flange face bedded into the component, leaving a witness ring and losing clamp load
-   Corrosion under the flange where moisture has been trapped
-   Thread galled or the drive damaged so the screw will not release cleanly

## 🛠️ Service Notes

-   Take the tightening torque from the service procedure for the illustrated position, as the flange spreads load differently to a plain-head screw

## 📦 Condition

-   Genuine Volvo Penta part
-   Brand new
-   Supplied in original or equivalent packaging

## Details

- **Price:** 6.31 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 6.31 AUD | In stock |

## Images

- 21419085 Flange Screw | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21419085-flange-screw-genuine-volvo-penta)
> Updated: 2026-10-12