Countersunk hex socket screw according to ANSI B18.3 standard, UF6S type with UNC inch thread, in stainless steel A2. The countersunk head allows the screw to sit flush with the surface after installation. UNC thread is used in assemblies with imperial dimensions, commonly found in imported machinery and equipment. Stainless steel A2 provides good corrosion resistance and is suitable for both indoor and outdoor use. Used where flush mounting and stainless material are required. Available in multiple sizes from SWEBOLT & BOTNIA BOLT.