Framing screws TEKOR Countersunk Head With Serration T25 4.5X50 Thread Length: 30 cut...
- 1 unit
- 10 units
- 30 units
- 200 units
- 800 Units
screws
nuts
washers
Threaded Rod
Boxes / Tools
Chandlery
| Number of pieces | 1 | 10 | 30 | 100 | 400 |
| Lot price VAT included | £1.61 | £4.25 | £12.76 | £38.88 | £147.69 |
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.
| Diameter | 5 | 6 | 8 | 10 |
| Head diameter | 10 | 12 | 14 | 18 |
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2026-08-09
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