M8x100 Cup Square Hex Coach Bolts Zinc Plated (Pack of 1)
Part No: M08-100CB-Z
Excl VAT: £0.10
|Out Of Stock|
M8x100 Cup Square Hex Coach Bolts Zinc Plated [Incl. Nuts & Washers] (Pack of 10)
Part No: FM08-100CB-Z10
Excl VAT: £2.24
M8x100 Cup Square Hex Coach Bolts Zinc Plated (Pack of 50)*
Part No: FM08-100CB-Z
Excl VAT: £5.90
M8x100 Cup Square Hex Coach Bolts Zinc Plated (Pack of 50)
Part No: HX08-100CB-Z
Excl VAT: £7.25
M8x100 Cup Square Hex Coach Bolts Zinc Plated [Approx 23mm Of Thread] (Pack of 100)
Part No: FM08-100CB-ZPT
Excl VAT: £5.72
Used mainly for fastening timber to timber and is extensively used for timber joist construction in house building and numerous decking applications.
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.
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.
|Head Type||Cup Square Hex|
|Bolt Finish||Zinc Plated|
|Material Grade||4.6 Mild Steel|
|Bolt Specification||DIN 603/1121|