Bolts/Nuts/Washer
| NOMINAL THREAD SIZE | EXAMPLE OF BICYCLE USES |
|---|---|
| 2.2mm x 56 tpi | Common 2mm spoke threading |
| 3mm x 0.5mm | Dropout adjustment screws, some derailleur hardware, accessory hardware |
| 4mm x 0.7mm | Some derailleur limit screws (DIN standard) |
| 4mm x 0.75mm | Common derailleur limit screw (JIS standard) |
| 5mm x 0.8mm | Many uses on bicycles, including derailleur wire pinch bolts/nuts, disc rotor mounting bolts, fender and racks mounts, water bottle cage bolts, and others |
| 6mm x 1mm | Many uses on bicycles, including brake caliper mounting bolts, brake pad bolts/nuts, some fender racks, some brake adjusting barrels |
| 7mm x 1mm | Some handlebar binder bolts |
| 5/16 inch x 24 tpi | Front hubs, solid axle, less expensive bikes |
| 8mm x 1mm | Square-type crank bolts, front solid axle hubs, suspension system hardware |
| 8mm x 1.25mm | Stem hardware, stud type crank nuts, suspension hardware |
| 8mm x 0.75mm | Chainring bolt |
| 9mm x 1mm | Front hubs, quick release, Asian manufacturer |
| 9mm x 26 tpi | Front hubs, Campagnolo® |
| 3/8 inch x 24 tpi | Some solid axle bike, including coaster brake |
| 3/8 inch x 26 tpi | Solid rear axle |
| 10mm x 1mm | Most quick release rear axles, derailleur mounting bolts, brake lever adjusting barrels |
| 10mm x 26 tpi | Rear axle, quick release, Campganolo® |
| 12mm x 1mm | Some spline crankset bolts |
| 1/2 inch x 20 tpi | Pedal threads, one-piece cranks |
| 9/16 inch x 20 tpi | Pedal threads- common three piece cranks |
| 14mm x 1mm | Oversized frestyle axles |
| 15mm x 1mm | Crank bolt, Octalink® and ISIS Drive® |
| 1-inch x 24 tpi | Threaded headsets, one-inch standard |
| 1-1/8 inch x 26 tpi | Thread headset, 1-1/8 inch standard |
| 1-1/4 inch x 26 tpi | Thread headset, 1-1/4 inch standard |
| 1.37 inch x 24 tpi | Bottom brackets, ISO/English/BSC, and threaded freewheel hubs |
| 1-3/8 inch x 26 tpi | Bottom brackets, older “Raleigh” three speeds |
| 36mm x 24 tpi | “Italian” threaded bottom brackets |
| 47mm x 1mm | T47 threaded bottom brackets |
