A loose lug that walks off mid-installation means a service call, a return trip, and a customer who wonders if you know what you're doing. These two-pack copper mechanical lugs are built for 8 to 2 AWG wire - the range that covers most residential service entries and subpanels. The copper body dissipates heat better than aluminum alternatives, and the set-screw crimp holds through thermal cycling without loosening. Electricians across northeast Nebraska and northwest Iowa stock these because they work the first time, every time. In stock at Crofton Lumber (Crofton, NE) and Akron Lumber (Akron, IA) - ready for pickup today. Stocked at Crofton Lumber and Akron Lumber.