Profile: Whitson Engineering Services Limited supplies both mechanical & electrical components and services. We have a large range of ball bearings, seals, O rings, belts, and Oilite bushes available from stock. We also offer electronic repair services. We supply all types of fasteners such as hex head sets, socket cap heads, cheese head screws, countersunk screw, socket set (grub screws), nuts, and washers to suit all types of screw threads, metric, UNC, UNF, BA, BSF and Whitworth.