| General Terms | Abbreviation |
| Across flats | A/F |
| Assembly | ASSY |
| Birmingham gauge | BG |
| British Standard | BS |
| Centimetres | CM |
| Centres | CRS |
| Centre line | CL or Lc |
| Centre line on a view | ¢ |
| Centre of gravity | CG |
| Chamfered | CHAM |
| Cheese head | CH HD |
| Countersunk | CSK |
| Countersunk head | CSK HD |
| Counterbore | C’BORE |
| Cylinder or cylindrical | CYL |
| Datum system | DATUM |
| Degree (of angle) | ° |
| Diameter | Dia or ø |
| Dimension | DIM |
| Drawing | DRG |
| Equally spaced | EQUI SP |
| External | EXT |
| Figure | FIG |
| Foot | FT or ' |
| Gallon | GAL |
| Galvanized | GALV |
| Hardness | |
| - Brinell | HB |
| - Rockwell | |
| A scale | HRA |
| B scale | HRB |
| C scale | HRC |
| D scale | HRD |
| E scale | HRE |
| - Vickers | HV |
| Hexagon | HEX |
| Hexagon head | HEX HD |
| Hydraulic | HYD |
| Inch | IN or " |
| Insulated or insulation | INSUL |
| Internal | INT |
| Internal diameter | I/D |
| Kilogram | KG |
| Left hand | LH |
| Long | LG |
| Machine | M/C |
| Machined | M/CD |
| Material | MATL |
| Maximum | MAX |
| Metre | M |
| Millimetre | mm |
| Minimum | MIN |
| Minute of angle | ' |
| Not to scale | NTS |
| Number | NO. |
| Outside diameter | O/D |
| Pattern number | PATT NO. |
| Pitch circle diameter | PCD |
| Pneumatic | PNEU |
| Pound | LB |
| Radius | RAD or R |
| Required | REQD |
| Revolutions per minute | RPM |
| Right hand | RH |
| Round head | RD HD |
| Screwed | SCR |
| Second (of angle) | " |
| Sheet, when preceding a material | SH |
| Sketch | SK |
| Specification | SPEC |
| Spherical | SPH |
| Spotface | S’FACE |
| Square | SQ |
| Standard | STD |
| Standard (imperial) wire gauge | SWG |
| Thread | THG |
| Thread per inch | TPI |
| Undercut | U’CUT |
| Volume | VOL |
| Weight | WT |
| Dimensions & Tolerances | |
| Angularity tolerance | ANG TOL |
| Basic dimensions | BASIC |
| Concentricity tolerance | CONC TOL |
| Cylindricity tolerance | CYL TOL |
Datum
Datum system
Datum dimensions |
DATUM |
| Flatness tolerance | FLAT TOL |
| Full indicated movement | FIM |
| Maximum material condition | MMC |
| Parallelism tolerance | PAR TOL |
| Positional tolerance | POSN TOL |
| Roundness tolerance | RD TOL |
| Straightness tolerance | STR TOL |
| Squareness tolerance | SQ TOL |
| Symmetry tolerance | SYM TOL |
| Tolerance zone (profiles) | TOL ZONE |
| True position, or true profile dimensions in conjuncture with positional, or profile tolerances | TP |