All nuts are 3/8 UNF 12 point hex

These larger diameter bungs are great if you want them to match up to the same diameter as your 1" frame tubing

save that your charging system is up to snuff

-Hold approximate 3 gallons of fuel

6399 rubber washers

The Sportster Treatment Custom Wiring Harness Kit 1986-1990 Harley-Davidson Sportster Models Color_Varies All nuts are 3/8 UNFStreamline your 19861990 Harley Davidson Sportster with this simplified wiring kit, crafted for a clean, minimalist look ideal for chopper or custom builds. This kit eliminates unnecessary wires, retaining only the essentials for running, riding, and basic lighting, ensuring a sleek appearance and dependable performance. Complete with a wiring diagram to guide installation, its perfect for riders seeking a stripped down electrical setup. Product