AHC branded products have been synonymous with steel bolts, screws, nuts, washers and other fasteners and fixings for the last 60 years. The name is trusted amoung construction companies and DIY enthusiasts alike and these allen key bolts continue to uphold the good name.This assortment contains socket countersunk screws (allen bolts) as well as washers, nuts and an Allen key (hex key) to suit The socket screws and other nuts & bolts supplied by AHC are manufactured from quality steel. The machine screws and other nuts & bolts supplied by AHC are manufactured from A2 stainless steel which means that these machine screws will not rust when left outside. These are not suitable for marine applications where we suggest using A4 grade hex screws instead (available on request).
Used mainly for fastening timber to timber and is extensively used for timber joist construction in house building and numerous decking applications. Also known as 'Cup Square Hex Bolts', the square underneath the Cup stops rotation of the bolt when tightening. This cup square bolt conforms to DIN603 standards and are available in a comprehensive range of sizes to suit most applications. A Carriage Bolt, also known as a Coach Bolt or as a Fully Threaded Coach Bolts , has a domed or countersunk 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 variety of sizes of cup square bolts ranging between M5 (5mm) and M16 (16mm) diameter as well as from 16mm to 200mm Long coach bolts are available AHC branded products have been synonymous with metric nuts and bolts, screws, washers and other fasteners and fixings for the last 60 years. The name is trusted amoung construction companies and DIY enthusiasts alike and these quality exterior coach bolts continue to uphold the good name. Zinc plated cup bolts withstand corrosion and are suitable for external use.