Screw Medium Countersunk Head With Serration T20 4X60 Thread Length: 40 Zinc Plated
- 1 unit
- 10 units
- 100 units
- 500 Units
- 2000 Units
screws
nuts
washers
Threaded Rod
Boxes / Tools
Chandlery
| Number of pieces | 1 | 10 | 100 | 500 |
| Lot price VAT included | €4.25 | €8.45 | €13.45 | €58.30 |
How do I measure the length of a screw?
The length of a countersunk screw is measured with the head. For all other heads, the length is measured under the head.
All our zinc-plated parts meet this specification (unless otherwise stated).
🛡️ Corrosion protection: low
Thin 3 to 5 µm zinc coating, suitable for environments with low exposure.
🧂 Salt spray resistance: 24 to 96 h
Indicative resistance before the appearance of rust, depending on the coating finish.
🏠 Recommended environment
Indoor applications or environments with very low exposure to moisture.
🔩 Threads preserved
The low coating thickness limits dimensional variations and helps maintain thread accuracy.
I use it to screw roofing/wooden roofing planks. The thin wood of the planks requires a stainless steel anti-split screw because they will be exposed to some light, and the dimension is half on the support and half through the plank.
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2025-08-10
Framework for trusses on long res