Bolt With Nut Hexagonal Head M20X510 Zinc Plated
- 1 unit
- 10 units
- 100 units
screws
nuts
washers
Threaded Rod
Boxes / Tools
Chandlery
| Number of pieces | 1 | 5 | 20 | 50 | 200 |
| Lot price VAT included | €1.85 | €3.70 | €11.75 | €26.80 | €107.10 |
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 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 27 |
| Head Tickness | 4 | 5.3 | 6.4 | 7.5 | 8.8 | 10 | 11.5 | 12.5 | 14 | 15 | 17 |
| Across flats | 10 | 13 | 16 | 18 | 21 | 24 | 27 | 30 | 34 | 36 | 41 |
| Thread if total screw length < 125 | 18 | 22 | 26 | 30 | 34 | 38 | 42 | 46 | 50 | 54 | 0 |
| Thread if total screw length > 125 | 0 | 28 | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | 0 |
| Thread if total screw length > 200 | 0 | 0 | 45 | 49 | 53 | 57 | 61 | 65 | 69 | 73 | 79 |
| b<200 | 0 | 0 | 32 | 36 | 40 | 44 | 48 | 52 | 0 | 0 | 66 |
Picnic table construction (table + bench) 240 x 140 x 85
Blocking cow feed barriers
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2026-07-19
to fix hinges to metal posts