Polaris L10N-14 CMP Lug Cu Long 1/0 AWG 1/4 Blt 1 Spc
https://nsiindustries.com/product/polaris-l10n-14-cmp-lug-cu-long-1-0-awg-1-4-blt-1-spc/
The POLARIS compression design creates a permanent, vibration-resistant connection that you can rely on with low contact resistance. Suitable for a wide range of applications, including power distribution, grounding and data transmission.