| |
| Term | Abbreviation or Symbol |
| Across Flats | AF |
| Assembly | ASSY |
| Centres | CRS |
| Centre Line ..On View |  |
| Centre line ..On Note | CL |
| Centre Of Gravity | CG |
| Chamfer of Chamferred..In a Note | CHAM |
| Cheese Head | CH HD |
| Countersunk/ Countersink | CSK |
| Countersunk Head | CSK HD |
| Counterbore | CBORE |
| Cylinder or Cylinderical | CYL |
| Diameter..in a note | DIA |
| Diameter..preceding a dimension |  |
| Drawing | DRG |
| Equally Spaced | EQUI SP |
| External | EXT |
| Figure | FIG |
| Full Indicated Movement | FIM |
| Hexagon | HEX |
| Hexagon Head | HEX HD |
| Insulated or Insulation | INSUL |
| Internal | INT |
| Least Material Condition..In a Note | LMC |
| Least Material Condition..(Geom.Dim) |  |
| Left hand | LH |
| Long | LG |
| Machine | MC |
| Material | MAT |
| Maximum | MAX |
| Maximum Material Condition..In a note | MMC |
| Maximum Material Condition..(Geom. tol) |  |
| Minimum | MIN |
| Not to Scale (In a note and underlined | NTS |
| Number | NO. |
| Pattern Number | PATT NO. |
| Pitch Circle Diameter | PCD |
| Radius..In a note | RAD |
| Radius..Preceding a dimension | R |
| Reference | REF |
| Required | REQD |
| Right hand | RH |
| Round Head | RD HD |
| Screw of Screwed | SCR |
| Sheet (Drawing Number) | SH |
| Sketch (prefix to Drawing Number) | SK |
| Specification | SPEC |
| Spherical Radius..Preceding dim | SR |
| Spotface | SFACE |
| Square ..In a note | SQ |
| Square ..Preceding dim |  |
| Standard | STD |
| Taper.. On Dia or Width |  |
| Thread | THD |
| Thick | THK |
| Tolerance | TOL |
| Typically OR Typical | TYP |
| Undercut | UCUT |
| Volume | VOL |