| ALSO IN THIS SECTION |
| Fasteners |
| Standards and Specifications |
| Plating and Galvanising |
| Thread Locking and Sealing |
| Kitting and Subasembly |
Management Systems
Threads
| M | Metric |
| Mf | Metric Fine |
| UNC | Unified Coarse |
| UNF | Unified Fine |
| BSW | British Standard Whitworth |
| BSF | British Standard Fine |
| BA | Birmingham Association |
| BSP | British standard Pipe |
| NPT | National Pipe Threads |
OGL Software