This is a 4 Pack of 4/0AWG, 5/16" Stud Non Insulated Heavy Duty Ring Lug Connectors. These Connectors are Heavy Duty Solid Copper and have a Flared End for Ease of Wire Insertion.

Features:

• Wire Gauge: 4/0 Gauge (4/0AWG)
• For 5/16" Stud Size Applications
• Maximum Voltage Rating: 600V
  
• Manufactured from Solid Copper
  
• Ease of Wire Insertion with Flared End