Copper Tube Terminal 10mm² (Tinned)

Tinned copper tube terminal, 10mm². Seamless copper tube barrel, electro-tin plated, with a bell mouth entry and an inspection hole. The correct termination for flexible battery cable at this size.

Specification

• Body: seamless copper tube to BS EN 12449
• Finish: bright electro-tin plating to BS 1872
• Performance: type tested to BS EN IEC 61238-1-1
• Cable size: 10mm²
• Stud sizes available: M6 (6.4mm hole), M8 (8.4mm hole), M10 (10.5mm hole)
• Bell mouth entry so the strands are not sheared at the barrel shoulder
• Inspection hole so you can confirm the conductor is fully home before you crimp

Nominal against actual hole size

The stud size is the bolt it fits, not the hole diameter. An M6 lug has a 6.4mm hole, M8 is 8.4mm, M10 is 10.5mm and M12 is 13mm. Getting a lug that will not pass over a stud is the commonest complaint in this whole category, so we publish both.

Crimping

Use a hexagonal die matched to the lug, not an indent crimp, and not a bolt cutter style tool. Hex applies force evenly from all sides and is standardised, so a DIN 22-series die works with a DIN 46235 lug from any manufacturer. Indent crimping is genuinely good on fine-stranded conductors but it is not standardised and it locks you to one maker's lugs.

At 70mm² and above, use two crimp positions along the barrel.

Do not drill out a smaller lug to fit a larger stud. It removes palm material, weakens the joint and exposes bare copper. If the lug will not fit the terminal, you want either a different stud size or a reduced palm lug.

Or have us crimp it

Every made-to-measure assembly we build is crimped on the bench with a hydraulic tool and a matched hex die, checked with a micrometer across the flats against the die maker's published figure, and measured end to end on a milliohm meter. You get the numbers on a certificate. Configure an assembly.