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The PRECISION BRAND 81230 is a slotted stainless steel shim stock designed for precise mechanical alignment, spacing, and leveling applications in industrial and trade settings. Each piece measures 0.4 mm thick, 50 mm wide, and 2 inches long, with a 5/8 inch wide slot that allows technicians to slide the shim around a bolt or shaft without full disassembly. The stainless steel construction resists corrosion and holds up under load in demanding environments. This listing includes a pack of 10 pieces, making it practical for jobs that require multiple adjustment points or staged shimming across an assembly.
Slotted shim stock like the 81230 is used across HVAC equipment installation, pump and motor alignment, machinery leveling, and structural fitting work. The slotted design is especially useful when shimming beneath base plates, motor mounts, or equipment feet where fasteners are already partially in place. The stainless steel material suits both indoor and outdoor applications where moisture or mild chemical exposure is a factor. Machinists, millwrights, HVAC installers, and general mechanical contractors commonly keep this style of shim on hand for field alignment tasks.
Designed as a general-purpose slotted shim stock suitable for motor bases, pump mounts, equipment feet, and structural alignment applications where a 5/8 inch slot width and 0.4 mm thickness are appropriate for the required tolerance.
Slotted shim stock is installed by qualified mechanical tradespeople including millwrights, HVAC technicians, and pipefitters. Before shimming rotating equipment such as motors or pumps, de-energize and lock out the equipment per OSHA lockout/tagout procedures. Shims should be seated flat with no overhang that could contact moving parts. Stack multiple shims only as needed and verify final alignment with appropriate measuring instruments after torquing fasteners.
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