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| Image | Product + | Brand: | Price | Availability | Qty |
| M8x50 Cup Square Hex Coach Bolts Galvanised Bolt Only (Pack of 1)Part No: M08-050CB-G | TIK Products |
£0.16 Excl VAT: £0.16 | 104 Packs In Stock | |
| M8x50 Cup Square Hex Coach Bolts Galvanised [Incl. Nuts & Washers] (Pack of 10)Part No: FM08-050CB-G10 | TIK Products |
£2.27 Excl VAT: £2.27 | Out Of Stock | |
| M8x50 Cup Square Hex Coach Bolts Galvanised Bolt Only (Pack of 100)*Part No: FM08-050CB-G | Fixings Megastore |
£12.27 Excl VAT: £12.27 | Out Of Stock | |
| M8x50 Cup Square Hex Coach Bolts Galvanised Bolt Only (Pack of 100)Part No: HX08-050CB-G | HX Fixings |
£10.37 Excl VAT: £10.37 | 3 Days |
A carriage bolt, also known as coach bolt or as cup square hex bolts, has a domed head, and the shank is topped by a short square section under the head. The square section grips into the part being fixed (typically wood), preventing the bolt from turning when the nut is tightened. A rib neck carriage bolt has several longitudinal ribs instead of the square section, to grip into a metal part being fixed.
Galvanised 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. Galvanise is a coating that (in contrast to iron oxide) does not trigger a breakdown of the substrates surface integrity as it is formed. The galvanise, 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.
| Fastener Specifications | |
| Head Type | Cup Square Hex |
| Bolt Diameter | 8mm |
| Fixing Length | 50mm |
| Thread Length | 50mm |
| Thread Type | Metric |
| Thread Pitch | 1.25mm |
| Bolt Finish | Galvanised |
| Material Grade | 4.6 Mild Steel |
| Bolt Specification | DIN 603/1104 |