Replacement Screws for Amp Module - 3 Series
Frequently Asked Questions
Written by Daniel Fabriczy
Updated at May 28th, 2026
Brand:
- JBL Professional
Models:
- 3 Series (MkI & MkII)
- LSR305
- LSR308
- LSR310S
Question:
- What is the part number for the screws that hold the amplifier module in place? I cannot find them in the SBOM.
Answer:
Unfortunately, the screw is not an orderable part and has no designated part number within the Service Bill of Materials (SBOM).
If the screws are lost or damaged during a repair, they can be replaced with hardware matching these exact specifications:
- Description: M4 x 8mm Black Pan Head Plastite
- Size: M4
- Length: 8mm
- Head Type: Pan Head