Forgefix 10CB640 Carriage Bolt & Nut ZP M6 x 40mm (Bag of 10) FORCB640G

Zinc Plated and ideal for timber to timber joining.
Come complete with a hex nut.
Also known as 'Cup Square Hex Bolts', the square underneath the Cup stops rotation of the bolt when tightening.
Conform to DIN603 and DIN934 standards.
Extensively used for timber joist construction in house building and numerous decking applications.