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XS Power 3/8" and 5/16" Stud Adapters

Two pairs of 12-volt battery terminal adapters for marine applications (model PN 588)

Item # 122588

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Item # 122588

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About the XS Power 3/8" and 5/16" Stud Adapters

If you're using an XS Power battery in your boat, you might need stud adapters to connect your boat's electrical system or components to the battery. This PN 588 kit contains two pairs of brass adapters to fit applications found on many boats: one 5/16" set and one 3/8" set. They feature M6 threads and come with stainless steel wingnuts that are built to last. These posts work with most XS Power 12-volt deep-cycle batteries, and you can also use them with XS Power's exclusive i-BAR battery fit system. Warranty: 1 year.

What's in the box:

  • Two 3/8" brass stud adaptors
  • Two 5/16" brass stud adaptors
  • Two 3/8" steel wing-nuts
  • Two 5/16" steel wing-nuts
MFR #588

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More details on the XS Power 3/8" and 5/16" Stud Adapters

Mark G.

Product Research


Overview: The PN 588 stud adapter kit includes two sets of stud adapters, 3/8" and 5/16", both with an M6 threaded side, that fits most XS Power batteries, and a 3/8" or 5/16" threaded post for adding power wires. These sizes are commonly found in marine applications. Each set comes with two stainless steel wing-nuts, 3/8" and 5/16", that thread onto the power wire side of the posts.


3/8" Set:

  • Post Size for Battery: M6 x 3/8" long
  • Post Size for Wires: 3/8" diameter x 3/4" long
  • Wing-nuts: 3/8" Stainless steel

5/16" Set:

  • Post Size for Battery: M6 x 3/8"
  • Post Size for Wires: 5/16" diameter x 3/4" long
  • Wing-nuts: 5/16" Stainless steel

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