trea - twis
- treatment
- treble-row butt-jointed riveting
- treble-row butt-jointed straped riveting
- treble-row lap riveting
- treble-row overlap riveting
- treble-row riveting
- triangle
- triangle head bolt with collar
- triangle head with collar
- triangle nut with collar
- triangle socket
- triangle spring
- triangular
- truncated cone point
