Choose these metric bolts for fastening most machinery and equipment. They are twice as strong as low-strength steel bolts. Carriage bolts have a smooth, rounded head for a finished look. …

Material: carbon steel, stainless steel; Grade: 4.8, 8.8, 10.9, 12.9; Surface treatment: according to customer requirements; Complete specifications, non-standard customization.

Cup Square Bolts also known as a Mushroom Head Square Neck Bolt, Coach Bolt or Carriage Bolt, has a square shoulder under a rounded head which resists turning when the nut is …

Cup Square Bolts. 18 products. Nuts, bolts and washers for every job and application available from MKM Building Supplies. Whether you're after carriage, connector, cup square, eye, …

They are often referred to as Plastic Cup Square Bolts or Coach Bolts, and can be particularly useful if there is limited access to both sides of the fastener. These bolts are typically used in …

Mar 14, 2025 · Cup square bolts, also known as carriage bolts, are essential fasteners widely used in woodwork, construction, and engineering applications. Their unique design features a …

Browse cup square hex bolts, also known as carriage or coach bolts. Zinc plated. Fully threaded at the Screwshop up to 160mm. Next-day.

Round head screw with square neck DIN 603, steel, strength class 8.8, zinc-plated, blue passivated (A2K)

Cup Square bolts are available in standard Mild Steels or Carbon Steels with Boron suitably heat treated for higher tensile requirements. Various finishes can be added from the standard self …

Our comprehensive range of bolting includes a wide selection of metric cup square hexagon bolts. All come bright zinc plated (BZP) as standard, and comply to the respective DIN specification. …