# 959979 Hexagon Screw | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta hexagon screw weighing 0.057 kg and listed for 21 applications, including TMD, MD, TAMD, TAD and TD series engines. It is the last of the four hexagon screws numbered 959967 to 959979, all of which are separate parts with their own fitment lists.

## 🚤 Compatibility

-   **Engine Family:** TMD, MD, TAMD, TAD, TD

Full model list at the end of this description.

## ⚙️ Key Features

-   0.057 kg
-   21 listed applications
-   Fits TMD, MD, TAMD, TAD and TD series engines
-   One of four different screws in the 959967 to 959979 block
-   6 used per assembly

## 🔌 Function

Clamps two components together, the head bearing on one face while the thread draws into the other.

## ⚠️ Common Signs of Failure

-   Rounded or burred head
-   Stripped or picked-up thread
-   Screw found loose, or the joint face fretted around it
-   Rust scaling under the head
-   Screw stretched or broken after over-tightening

## 🛠️ Service Notes

-   Renew rather than re-use any screw that came out of a joint that had worked loose — the thread has usually taken damage

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta TAMD122A, TAMD122A/C, TAMD122D, TAMD122P-A, TAMD122P-B, TAMD122P-C
-   Volvo Penta TAD120AHC, TAD120BHC, TAD120CHC
-   Volvo Penta TAMD120A, TAMD120B
-   Volvo Penta TD120AHC, TD120BHC
-   Volvo Penta TMD120A, TMD120B
-   Volvo Penta MD120A
-   Volvo Penta TAD121CHC
-   Volvo Penta TAMD121D
-   Volvo Penta TD121CHC
-   Volvo Penta TMD121C
-   Volvo Penta TMD122A

## Details

- **Price:** 40.08 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 40.08 AUD | In stock |

## Images

- 959979 Hexagon Screw | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/959979-hexagon-screw-genuine-volvo-penta)
> Updated: 2026-09-19