StewMac Neck Shim Shop Set of 12

Full contact, precisely tapered

To change the angle of a bolt-on neck, players and repair shops have used shims for years. We've seen everything from matchbook covers to guitar picks stuck in neck joints.

Those kinds of shims create an unwanted gap under the heel of the neck: a dead air space where humidity condenses to swell the wood. As Dan Erlewine describes in his Guitar Player Repair Guide:

"This gap may cause an upward kink in the neck. And many players feel they lose tone unless firm contact is maintained between the neck and the body."

Dan creates tapered shims that cover the entire heel of the neck. With these Bolt-On Shims, that work is done for you.

Attention repair shops: Making a quality shim takes time. Keep these on hand for a quick turnaround on this common repair.

This Shop Set of 12 hard maple shims includes one each of every size, shape and taper:

3 shaped shims for guitar

3 blank shims for guitar

3 shaped shims for bass

3 blank shims for bass

NOTE: Each trio of shims includes 3 different tapers for changing the pitch of any bolt-on neck: 0.25-degree, 0.5-degree, and 1-degree.

The shaped shims fit most neck pockets with a rounded heel. The blank shims are designed for odd screw spacings, smaller neck pockets, and custom designs like the Fender Micro-Tilt™.

Guitar shim dimensions:

Shaped: 2-3/16" x 3" (55.56mm x 76.12mm)

Blank: 2-1/4" x 3" (57.15mm x 76.12mm)

Bass shim dimensions:

Shaped: 2-1/2" x 3-7/8" (63.50mm x 98.43mm)

Blank: 2-3/4" x 3-7/8" (69.86mm x 98.43mm)

Taper specs (approximate):

0.25-degree tapers from 0.030" to 0.019" (0.76mm to .048mm)

0.5-degree tapers from 0.028" to 0.008" (0.71mm to .020mm)

1-degree tapers from 0.060" to 0.010" (1.52mm to .025mm)