Trojan Special Fasteners will manufacture, from bar turning, high precision flange and collar nuts. Flange nuts typically have a large round flange at one end of the nut which acts as a fixed washer. This in effect distributes the pressure of the nut across the part being secured in an even manner which ultimately reduces the chance of damage to the part and lessens any effects of loosening because it's fastened on an uneven surface.
Trojan special fasteners can also manufacture collar nuts, which have a collar diameter which is equal to or less than the across flat of the nut. Like flange nuts they reduce the need for an additional washer, which helps keep assembly time and costs low.
It is possibly to combine prevailing torque features like the addition of a nylon insert ring, axial slots or thread deformation from the tops or sides into a nut.
Trojan Special Fasteners can axially slot and deform nuts from the top or the sides to provide a prevailing torque feature on your nuts - as no open standard for these exists we would ask that you provide your dimensions or a drawing and we can manufacture to that. Additionally, we can torque test your nuts for you, just provide us with the female threaded part and we'll take care of the rest!
In addition to standard preferred sizes, we also manufacture non preferred and non standard or special thread and nut forms and sizes.