zeskantkop

A zeskantkop is a type of fastener characterized by a six-sided externally hexagonal head. The hex head is designed to be turned with a wrench or socket, allowing high-torque clamping and reliable seating in metal assemblies. Zeskantkop-fasteners are widely used to join components in machinery, automotive applications, and construction.

Most commonly, the term refers to hex bolts (zeskentbout) and hex screws with metric threads, in which the head shape provides multiple flat surfaces for turning. These fasteners are standardized under international DIN and ISO families, such as DIN 931/933 and ISO 4014/4017, and are produced in various material grades and finishes. The head size varies with the nominal diameter, and standard tables specify compatible tool sizes for each size.

Materials and finishes vary to suit different environments. Common materials include carbon steel, alloy steel, and stainless steel. Finishes range from zinc plating and hot-dip galvanizing to black oxide, offering corrosion resistance and aesthetic options. In critical applications, fasteners may be supplied with specific strength classes and tolerances.

Applications and usage guidelines: zeskantkop fasteners are used with nuts or threaded holes and are often paired with washers to distribute load. Correct torque is essential and depends on diameter, material grade, lubrication, and thread engagement. Following manufacturer torque specifications helps prevent thread damage and component distortion. Proper tool selection and clean threads are important for reliable installation and long-term performance.