OO M12x300 Cup Square Hex Coach Bolts Galvanised Bolt Only


M12x300 Cup Square Hex Coach Bolts Galvanised Bolt Only


M12x300  Cup  Square  Hex  Coach  Bolts  Galvanised  Bolt  Only
  • These coach bolts are galvanised, and ideal for timber to timber joining.
  • Coach bolts upto 100mm are fully threaded, over 100mm will have a minimum of 100mm of thread unless stated.
  • M8, M10 and M12 galvanised versions do not come supplied with any nuts.

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M12x300 Cup Square Hex Coach Bolts Galvanised Bolt Only (Pack of 1)


Part No: M12-300CB-G

TIK Products

£2.03
Excl VAT: £2.03
3 Packs
In Stock

M12x300 Cup Square Hex Coach Bolts Galvanised [Incl. Nuts & Washers] (Pack of 5)


Part No: FM12-300CB-G5

TIK Products

£10.50
Excl VAT: £10.50
265 Packs
In Stock

M12x300 Cup Square Hex Coach Bolts Galvanised Bolt Only (Pack of 15)*


Part No: FM12-300CB-G

Fixings Megastore

£30.43
Excl VAT: £30.43
88 Packs
In Stock
  • These coach bolts are galvanised, and ideal for timber to timber joining.
  • Coach bolts upto 100mm are fully threaded, over 100mm will have a minimum of 100mm of thread unless stated.
  • M8, M10 and M12 galvanised versions do not come supplied with any nuts.
  • Also known as 'cup square hex bolts', the square underneath the cup stops rotation of the bolt when tightening.
  • Conforms to DIN603 and DIN934 standards.
  • Available in a comprehensive range of sizes to suit most applications.
APPLICATION
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.

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 TypeCup Square Hex
Bolt Diameter12mm
Fixing Length300mm
Thread Length100mm
Thread TypeMetric
Thread Pitch1.75mm
Bolt FinishGalvanised
Material Grade4.6 Mild Steel
Bolt SpecificationDIN 603/1238