The ‘bolts and nuts’ category includes roofing bolts, either BZP or galvanised, tray bolts for joining sections of cable tray, carriage bolts, and hex bolts, all in a full range of sizes. There are also a variety of standard and specialised nuts. Hex nuts can be BZP, galvanised, stainless steel or brass. Specialised nuts include nylon insert locking nuts, wedge nuts for decking, dome nuts, tamper-proof shear nuts and vibration resistant serrated flange nuts. Bolt and nut protection caps complete the range.