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| Image | Product + | Brand | Price | Availability | Qty |
| M5 x 10 Shouldered Thumbscrews Zinc Plated (Pack of 1,000)Product Code: HX05-010TSPT-Z | HX Fixings |
£140.11 Ex VAT: £116.76 | 3 Days | |
| M5 x 12 Shouldered Thumbscrews Zinc Plated (Pack of 1,000)Product Code: HX05-012TSPT-Z | HX Fixings |
£120.16 Ex VAT: £100.13 | 3 Days | |
| M6 x 12 Shouldered Thumbscrews Zinc Plated (Pack of 500)Product Code: HX06-012TSPT-Z | HX Fixings |
£102.47 Ex VAT: £85.39 | 3 Days | |
| M6 x 15 Shouldered Thumbscrews Zinc Plated (Pack of 500)Product Code: HX06-015TSPT-Z | HX Fixings |
£102.31 Ex VAT: £85.26 | 3 Days | |
| M6 x 20 Shouldered Thumbscrews Zinc Plated (Pack of 350)Product Code: HX06-020TSPT-Z | HX Fixings |
£72.40 Ex VAT: £60.33 | 3 Days | |
| M6 x 25 Shouldered Thumbscrews Zinc Plated (Pack of 300)Product Code: HX06-025TSPT-Z | HX Fixings |
£64.43 Ex VAT: £53.69 | 3 Days | |
| M6 x 30 Shouldered Thumbscrews Zinc Plated (Pack of 300)Product Code: HX06-030TSPT-Z | HX Fixings |
£67.45 Ex VAT: £56.21 | 3 Days | |
| M6 x 40 Shouldered Thumbscrews Zinc Plated (Pack of 250)Product Code: HX06-040TSPT-Z | HX Fixings |
£47.48 Ex VAT: £39.57 | 3 Days | |
| M6 x 50 Shouldered Thumbscrews Zinc Plated (Pack of 200)Product Code: HX06-050TSPT-Z | HX Fixings |
£45.55 Ex VAT: £37.96 | 3 Days | |
| M8 x 15 Shouldered Thumbscrews Zinc Plated (Pack of 250)Product Code: HX08-015TSPT-Z | HX Fixings |
£100.45 Ex VAT: £83.71 | 3 Days | |
| M8 x 20 Shouldered Thumbscrews Zinc Plated (Pack of 200)Product Code: HX08-020TSPT-Z | HX Fixings |
£64.34 Ex VAT: £53.62 | 3 Days | |
| M8 x 25 Shouldered Thumbscrews Zinc Plated (Pack of 200)Product Code: HX08-025TSPT-Z | HX Fixings |
£86.27 Ex VAT: £71.89 | 3 Days | |
| M8 x 30 Shouldered Thumbscrews Zinc Plated (Pack of 150)Product Code: HX08-030TSPT-Z | HX Fixings |
£67.94 Ex VAT: £56.62 | 3 Days |
A thumbscrew is a type of screw drive with either a tall head and ridged or knurled sides, or a key-like flat sided vertical head. They are intended to be tightened and loosened by hand, and not found in structural applications. They are sometimes also cut for Phillips head and/or slotted screwdrivers as well as having the knurl for finger grip. Available with, or without a shoulder.
Zinc coatings prevent oxidation of the protected metal to create a longer lasting finish. It does this by forming a barrier and by acting as a sacrificial anode if this barrier is damaged. Zinc oxide is a fine white dust that (in contrast to iron oxide) does not trigger a breakdown of the substrates surface integrity as it is formed. The zinc oxide, if left intact, can act as a barrier to further oxidation, in a way similar to the protection afforded to aluminum and stainless steels by their oxide layers.
