Cup Square Carriage Bolts
Carriage bolts, also known as coach bolts, are available in a variety of diameters at competitive prices with bulk discounts available across the range. Available in A2 stainless steel and bright zinc plated (BZP) grade 8.8 steel, with both offering levels of resistance to corrosion. Consists of a domed circular head with a square neck section that sits just below the head. This is designed to locate in the fixture and prevent the bolt from turning when tightening the nut. They can only be unbolted from one side so offer a level of security.
Please note: The BZP range is supplied with a nut but the A2 stainless steel range is not.
What are Cup Square Carriage Bolts?
Cup Square Carriage Bolts, known as Coach Bolts, are a type of fastener that feature a domed head and fully threaded shaft. Under the bolt head is a square section which is specifically designed to sit in a recess of the wooden material. This allows the bolt to lock in place when tightening into soft material.
What are Cup Square Carriage Bolts used for?
The bolts are primarily used for fixing timber to timber and timber to metal. Carriage bolts feature a fully threaded shaft and under the bolt head is a square section which is specifically designed to sit in a recess of the wooden material. This allows the bolt to lock in place when tightening into soft material.
The carriage bolts also carry a secondary appeal. The dome head of the bolt also carries some aesthetic appeal due to their rounded head which can give a good, finished appearance to many applications. This appeal to the finishing is certainly useful when used in building wooden decking, decorative fencing, wooden furniture and play equipment etc.
The bolts also offer a level of security as they can only be unbolted form one side.
What are Cup Square Carriage Bolts made from?
The Carriage Bolts are manufactured from two different types of material with both offering certain levels of corrosion resistance. A2 stainless steel, which offers high level of corrosion resistance, and grade 8.8 steel with a bright zinc plating (BZP), which offers a mid-level of resistance to corrosion.