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Tweco BP-40 Ball-Point Cable Lug and Cover Set (3/0-4/0)

$77.61/EA $56.30/pack of 1 only $56.30/EASave 27%

Usually ships within 3-5 business days

OVERVIEW

The Easiest Way to Connect Heavy Welding Leads

Stop struggling with massive crimping tools or messy solder pots when building your welding leads. The Tweco BP-40 Ball-Point Lug & Cover (9515-1111) is designed to make your life easier while giving you a connection you can trust. Perfect for 3/0 and 4/0 cable, this lug uses a simple but powerful ball-point screw to bite into the copper strands of your cable. Just strip the insulation, insert the cable, and tighten the screw with a hex key. It’s that simple.

Why choose a ball-point lug? Because it gives you the conductivity of a soldered connection with the convenience of a mechanical one. The pressure from the screw ensures that every strand carries current, reducing heat buildup at the terminal and keeping your arc smooth. Plus, if your cable gets damaged down the line, you can simply unscrew the lug and put it on a new piece of cable—no waste, no hassle.

This kit comes complete with the copper lug and a tough insulating cover to keep your connections safe and professional-looking. Whether you are setting up a new power source or repairing a damaged ground lead in the field, the Tweco BP-40 is the reliable choice for professional welders who demand quality and efficiency.

Additional Information
Brand:Tweco
Model:BP-40
Cable Capacity:3/0 AWG, 4/0 AWG
Packaging Description:1 per each
Connection Type:Ball-Point Mechanical Screw
Material:Copper Alloy
Amperage Capacity:Up to 500A
Component Type:Lug and Cover

INCLUDED

  • 1 x Tweco BP-40 Copper Lug
  • 1 x Insulating Cover
  • 1 x Ball-Point Screw

APPLICATIONS

  • Welding power source output terminals
  • Ground clamp connections
  • Cable extensions and repairs
  • Heavy industrial fabrication shops
  • Shipyards and construction sites
  • Maintenance and repair operations

FAQ

The Tweco BP-40 (9515-1111) is designed to fit 3/0 and 4/0 AWG welding cables.

No, the Ball-Point design uses a mechanical screw to secure the cable, eliminating the need for soldering.

You will need a cable stripper to remove the insulation and a hex key (Allen wrench) to tighten the ball-point screw.

Yes, the part number 9515-1111 includes both the copper lug and the protective insulating cover.

Yes, because it uses a mechanical screw connection, the lug can be removed and reinstalled on a new cable if needed.

The lug is manufactured from a high-conductivity copper alloy.

While physically it may fit, these copper lugs are primarily designed for copper welding cables. Using them with aluminum may require specific anti-oxidant compounds and careful monitoring for galvanic corrosion.

The lug is generally rated to match the amperage capacity of the 3/0 or 4/0 cable attached to it, typically suitable for applications up to 400-500 amps.