DIN 7991 Allen CSK (Countersunk) Bolt is a flat-head fastener with an internal hexagonal socket drive. These bolts are ideal for flush and clean installations and are commonly used in applications where a smooth and sleek surface is required, such as in furniture assembly or architectural structures. DIN 7991 Allen CSK Bolts are known for their high-strength and corrosion-resistant properties, making them a reliable choice for a wide range of industrial and engineering applications, ensuring both functionality and aesthetic appeal.