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The PRECISION BRAND 17840 is a brass shim stock sheet used to fill gaps, align components, and set precise tolerances in mechanical assemblies. At 0.004 inches thick, this sheet stock is well suited for fine-clearance work where thin, consistent material is critical. Each sheet measures 18 inches long by 6 inches wide, giving technicians enough material to cut custom shims for a range of applications. Brass construction provides good corrosion resistance, machinability, and dimensional stability under moderate load. This package contains 10 sheets. HVAC technicians, pipefitters, millwrights, and maintenance mechanics regularly work with shim stock during equipment installation and alignment.
Brass shim stock in this thickness range is commonly used in residential and commercial mechanical work, including leveling HVAC equipment bases, aligning pump flanges, setting bearing clearances, and shimming pipe supports. The 0.004-inch thickness is a standard selection for precision fitting tasks where thicker shims would close tolerances too aggressively. Field technicians and shop machinists both use sheet stock in this format, cutting individual shims to shape with snips or a utility knife as the job requires.
Designed as a general-purpose brass shim stock sheet for use in mechanical, HVAC, plumbing, and industrial maintenance applications requiring precision gap filling or component alignment.
Shim stock installation is typically performed by millwrights, HVAC technicians, pipefitters, or maintenance mechanics. De-energize and lock out all equipment before inserting or adjusting shims on any mechanical assembly. Use aviation snips, a utility knife, or metal shears to cut sheets to the required shape. Verify final clearances with a feeler gauge after shimming to confirm tolerances are met before returning equipment to service.
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