One-hole, standard barrel with window, narrow tongue lug, #4 — #3 AWG STR, #2 AWG SOL wire, #10 stud hole.KEY FEATURES AND BENEFITS:• Narrow tongue width for limited space applications• Color-coded barrels marked with Panduit and specified competitor die index numbers for proper crimp die selection• Inspection window to visually assure full conductor insertion• Tin-plated to inhibit corrosion• UL Listed and CSA Certified to 35 KV** and temperature rated to 90°C when crimped with Panduit and specified competitor crimping tools and dies• UL Listed and CSA Certified for wide wire range-taking capability when crimped with Panduit® Uni-Die ™ Dieless Crimping Tools‡