ForgeFix 5CB12100 Carriage Bolt & Nut ZP M12 X 100mm Bag 5

Product Description

Forge Fix Carriage Bolt & Nut ZP in Bags
- Forge Fix 5CB12100, These Forgefix Carriage Bolts are Zinc Plated, & ideal for timber to timber joining. They come complete with a hex nut & are fully threaded to 100mm. Also known as ' Cup Square Hex Bolts', the square underneath the Cup stops rotation of the bolt when tightening. Conform to DIN603 & DIN934 standards. Available in a comprehensive range of sizes to suit most applications. Used mainly for fastening timber to timber & is extensively used for timber joist construction in house building & numerous decking applications. A Carriage Bolt, also known as a Coach Bolt or as a ‘ Fully Threaded Cup Square Hex Bolt’, has a domed or countersunk head, & 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 & 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 substrate’s 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 aluminium & stainless steels by their oxide layers. Forge Fix 5CB12100 Carriage Bolt & Nut ZP M12 x 100mm Bag 5