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The SPI Z9035 is a thread triangle accessory set designed for use with any micrometer spindle. It enables accurate measurement of thread pitch on fasteners, fittings, and threaded components. The set covers a pitch range of 4.00 to 80.00 and includes two thread triangle holders along with a reference chart for quick identification. This tool is used by machinists, pipefitters, and trade professionals who need to verify thread specifications during fabrication, inspection, or installation work.
This accessory is suited for shop floor, field service, and inspection bench applications where thread verification is required. It mounts directly to a standard micrometer spindle without additional adapters. The included chart assists with rapid pitch identification across a wide range of thread standards. The compact form makes it practical for use in tight spaces or on-site service calls where portability matters.
Designed for use with any micrometer spindle. No specific brand or model restrictions are indicated in available product data.
Thread triangle accessories are installed and used by machinists, pipefitters, and quality inspection personnel. Ensure the micrometer is zeroed and calibrated before taking measurements. Handle the thread triangle holders carefully to avoid damage to contact surfaces, which can affect measurement accuracy. Store in a protective case when not in use to maintain calibration integrity.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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