Q-How do I measure the screw hole pattern?

Do not measure diagonally crossing the center rivet. Exact is not necessary since the slot is elongated and a screw can be placed anywhere.
(5 1/4" mounting screw hole patterns are an industry standard for most swivels.)

  • Measure from about the middle of an elongated slot to the same place on the next slot.
  • Measure from the center of one screw to the center of another screw.
  • Measure the screw distance by placing a ruler on the edge of one screwhead and measure to the same edge on an adjacent screw.

Q-My old swivel is different!

Q-My old swivel screw hole pattern measures differently than yours,

    Q-I don't know if I need Flat or Tilted.

    Q- What if I buy the wrong swivel or it doesn't fit?

    Q-My new swivel won't turn!

    Q-What about swivel maintenance?

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