Precision Brand 42420 Stainless Steel Slotted Shim 20 Pack

Product Description

The PRECISION BRAND 42420 is a slotted stainless steel shim used for precision alignment and leveling of industrial and mechanical equipment. Each shim measures 4 inches by 4 inches with a thickness of 0.004 inches, providing a thin, consistent spacer for fine-tolerance work. The slotted design allows the shim to be inserted and removed without fully disassembling the mounted equipment, saving time during setup and adjustment. This pack includes 20 shims, making it practical for shops and field crews that run frequent alignment jobs on rotating equipment and base-mounted machinery.

These shims are suited for alignment and leveling tasks on motors, pumps, generators, compressors, and similar plant machinery. The stainless steel construction resists corrosion, making these shims appropriate for both indoor mechanical rooms and environments where moisture or mild chemical exposure is a factor. Maintenance technicians and millwrights working in industrial, commercial, and light manufacturing settings will find this pack a practical stock item for recurring alignment work.

Key Features

• Slotted design allows installation without full equipment teardown
• Stainless steel construction provides corrosion resistance for wet or harsh environments
• Uniform 0.004-inch thickness for repeatable, controlled shimming
• 4 x 4 inch footprint fits a wide range of base plates and mounting flanges
• Pack of 20 supports multiple machines or repeat adjustments without reordering

Compatibility

Designed for alignment and leveling applications on motors, pumps, generators, and other base-mounted plant machinery where slotted shim stock in stainless steel is required.

Installation Notes

Installation is typically performed by millwrights or maintenance technicians as part of a precision alignment procedure. Power down and lock out the equipment before inserting or adjusting shims under any mounted machinery. Use calibrated alignment tools to verify levelness and shaft alignment after shimming. Avoid bending or distorting individual shims during handling, as deformation will affect thickness consistency and alignment accuracy.

Technical Specifications

• Material: Stainless Steel
• Length: 4 inches
• Width: 4 inches
• Thickness: 0.004 inches
• Pack Quantity: 20
• Weight: 0.35 pounds
• UPC: 698158424207

Standard Information

• Brand: PRECISION BRAND
• Manufacturer Part Number: 42420