
Copper Bolt Connectors — T/J Series
T/J copper bolt connectors for clamping and joining conductors in power distribution.
One-piece copper body with machine thread; fast tightening and strong pull-out.
Sizes cover 16–240 mm² equivalents with metric threads M17–M31 × 2.5.
Compact dimensions L / W(thread) / H / S for easy panel and line work.
Overview — T/J Series Copper Bolt Connectors
T/J copper bolt connectors provide quick, secure mechanical clamping for a wide
variety of conductors in electrical networks. The connector uses a precision copper body with a metric
thread to deliver reliable tightening force and low contact resistance in a compact footprint.
Material: Copper |
Function: Mechanical clamping / joining of conductors |
Dimensions: L (length), W (thread spec), H (overall height), S (hex size)
Technical Data — Dimensions
| Type | L (mm) | W (thread) | H (mm) | S (mm) |
|---|---|---|---|---|
| TJ-16 | 20 | M17 × 2.5 | 6 | 18 |
| TJ-25 | 27 | M19 × 2.5 | 7 | 20 |
| TJ-35 | 35 | M21 × 2.5 | 7 | 22 |
| TJ-50/70 | 42 | M23 × 2.5 | 11 | 24 |
| TJ-90/120 | 45 | M25 × 2.5 | 14 | 26 |
| TJ-150/185 | 60 | M29 × 2.5 | 17 | 30 |
| TJ-200/240 | 62.72 | M31 × 2.5 | 20 | 32 |
Notes
- Use appropriate anti-oxidation compound when joining aluminium conductors.
- Tighten to recommended torque for the corresponding thread size.
- Insulate or seal the joint according to site environmental class.





