# 20860579 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Flange Screw - Part Number: 20860579

  

A genuine Volvo Penta flange-head screw manufactured to the specified thread, length, strength class and under-head bearing diameter. The integral flange spreads clamp load without a separate washer and maintains the joint geometry engineered for the original assembly.

  

Correct selection must be confirmed against the complete Volvo Penta product designation, product number and serial number because neighbouring engine variants can use different dimensions, connections or calibration.

  

⚙️ Key Features

  

• Genuine Volvo Penta Flange Screw - part number 20860579

• Exact thread diameter, pitch and usable length

• Specified strength and surface treatment for the installation

• Integral flange distributes clamp load

• Head profile provides the required tool and surrounding clearance

• Correct shank and thread engagement preserve joint alignment

• Tighten only to the specified torque and angle for the named joint

• Confirm the complete engine product number and serial number before ordering

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20860579 (current OEM reference)

  

OEM / Related Numbers:

  

• 20860579

• VOE20860579

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• D5/D7-series Volvo Penta industrial diesel applications

  

Typically suits:

  

• Engine models:

• TAD560VE

• TAD561VE

• TAD734GE

• TAD761VE

• TAD762VE

• TAD763VE

• TAD764VE

• TAD765VE

  

• HP Range: Not a primary selection criterion; match the exact engine/product designation and serial number

• Engine Type: D5/D7-series Volvo Penta industrial diesel applications

• Year / Serial Range: Production period and serial breaks vary by model; confirm against the complete Volvo Penta product number and serial number

• Application Note: The exact schematic position and serial applicability vary by engine designation and installed equipment.

  

🔌 Function

  

The screw develops the clamp load that holds the adjoining components together. The flange reduces bearing stress beneath the head and provides a repeatable friction surface so the prescribed tightening method produces the intended preload.

  

Common signs of failure:

  

• Thread stretching or necking

• Rounded or damaged drive head

• Corrosion or damaged coating changes tightening friction

• Joint loosens because the screw is incorrect length or grade

• Cracked flange or fretting beneath the head

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 64.32 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 64.32 AUD | In stock |

## Images

- 20860579 Flange Screw | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20860579-flange-screw-genuine-volvo-penta)
> Updated: 2026-08-01