Simplefix are the No 1 choice of the professional sign maker, they are available as complete fixings, sockets and studs in a range of three sizes Small Medium and Large. Simplefix are UV stable and frost resistant and come with a lifetime guarantee, they are manufactured in the UK to ISO standards assuring you of the highest quality. SimpleFIX are Industry Standard Letter Fixings. Manufactured in HIPS for the male stud, and a UV stabilised Alkathene female cup, they are manufactured to ISO 9001 and ISO 14001 standards. Sizes as below Large Socket length 21mm, Socket width 14mm, Stud Diameter 10mm, Stud Base Diameter 18mm, Overall Standoff 21mm.