4-String Black with Gold Bolts – Unslotted


For use with basses that require a specific or unique string spacing. Must be slotted by a qualified guitar technician. (pictured with slotted saddles)

SKU: 4BGU Category:


Unique design features of the the KSM Foundation™ Bass Bridge:

    • Utilizes a patented ramp design
    • Maximizes the transfer of string-to-body vibrations
    • Allows for precise adjustments
    • Patented locking system locks all moving components
    • Built for either String-Through Body or Top Load basses
        * All KSM Foundation™ Bass Bridges come with a 30-Day Money-Back Guarantee, as well as a Lifetime Warranty, guaranteed to be free from manufacturing defects in materials and craftsmanship.


        • Both String-Through Body or Top Load Design
        • Anodized Black 6061-T6 aluminum
        • .468” minimum string height – bottom of string to top of bass body
        • .703” maximum string height – bottom of string to top of bass body
        • String Spacing: unslotted
        • Intonation adjustment range: .750” front to back
        • Footprint: 3.500” x 2.250”
        • Frame Height: .437”
        • Intonation and lock bolt wrench (included)
        • Ramp height adjustment wrench (included)
        • High-strength mounting screws (included)
        • Weight: 4.25 oz

* The size of the allen wrenches used for bridge adjustments are 1.5 metric for the height adjustment, and 2.5 metric for the lock down and intonation adjustments.

Additional information

Bolt Color


Bolt Pattern

Inline Screw Pattern

Bridge Color


4-String or 5-String


String Slots