# 21360480 Hex Socket Screw | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine hexagon-socket screw manufactured to the Volvo Penta thread, length, shoulder, strength and corrosion-protection specification assigned to part number 21360480.

## ⚙️ Key Features

-   Genuine Volvo Penta socket-head fastener
-   Application-specific thread and installed length
-   Factory strength and shoulder geometry
-   Designed for the assigned engine or drive clamping load
-   Torque must be taken from the exact service procedure

## 🔌 Function

The screw secures the assigned component with the specified clamping force and alignment.

## ⚠️ Common Signs of Failure

-   Screw found backed out or slack at inspection
-   Movement, rattle or a leak at the joint the screw clamps
-   Hexagon socket rounded out so a key will no longer grip
-   Socket packed with paint, salt or debris, hiding the fault until removal is attempted
-   Thread galled or corroded so the screw seizes on the way out

## 🛠️ Service Notes

-   Clean the socket out fully and use the correct key size - a partly engaged key is what rounds these screws
-   Supersedes 3809331
-   Take the tightening torque from the service procedure for the illustrated position

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21360480 → Supersedes 3809331

### OEM / Related Numbers

-   3809331 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 8.05 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 8.05 AUD | In stock |

## Images

- 21360480 Hex Socket Screw | Genuine Volvo Penta Part
- 21360480 Hex Socket Screw | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21360480-hex-socket-screw-genuine-volvo-penta)
> Updated: 2026-10-08