2 13x25mm T-Bolt Bonding Kit 4000122

2-Pack 13x25mm T-Bolt Bonding Kit (Part #4000122) is a stainless-steel solar mounting hardware set designed to secure and electrically bond components within a PV racking system. It features a 25 mm T-bolt paired with a 13 mm serrated hex nut, allowing the hardware to bite through anodized coatings and create a reliable grounding path.

This bonding kit is commonly used in residential and commercial solar installations to fasten rails, lugs, or attachments while ensuring proper system grounding. Its corrosion-resistant stainless-steel construction provides long-term durability in outdoor environments.