{"product_id":"spi-14-036-8-screw-pitch-gage-28-leaf-4-to-80-tpi","title":"Spi 14-036-8 Screw Pitch Gage 28 Leaf 4 to 80 Tpi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 14-036-8 is a 28-leaf screw pitch gage used to identify and verify thread pitch on threaded fasteners and machined components. It covers a range of 4 to 80 threads per inch (TPI) and is built for a 60-degree thread angle, which is standard for Unified National thread forms. The leaves are made from steel for durability under shop conditions. A locking mechanism holds the selected leaf in position during measurement. This tool is used by machinists, maintenance technicians, and fabricators who need a fast, reliable way to confirm thread pitch without a thread micrometer.\u003c\/p\u003e\n\u003cp\u003eThe 14-036-8 is suited for both external and internal thread identification across a broad TPI range, making it useful in general machining, assembly, repair, and inspection workflows. It works on bolts, studs, nuts, tapped holes, and threaded fittings. The 4 to 80 TPI range covers coarse and fine thread series commonly encountered in inch-based fastener and component work. This gage is a standard hand tool kept in toolboxes and inspection stations in manufacturing, maintenance, and trade environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e28 individual leaves cover 4 to 80 TPI in a single tool\u003c\/li\u003e\n  \u003cli\u003e60-degree thread angle matches Unified National (UN\/UNC\/UNF) thread form standard\u003c\/li\u003e\n  \u003cli\u003eIdentifies both external and internal thread pitch\u003c\/li\u003e\n  \u003cli\u003eSteel construction for wear resistance in shop use\u003c\/li\u003e\n  \u003cli\u003eLocking mechanism secures the selected leaf during measurement\u003c\/li\u003e\n  \u003cli\u003eInch measurement type for use with standard fastener specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with inch-series threaded fasteners and components having a 60-degree thread angle, covering external and internal thread forms across the 4 to 80 TPI range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eNo installation is required. Fan the leaves to locate the blade that matches the thread profile of the fastener or hole being checked. Engage the leaf against the threads and verify full contact along the blade edge under adequate lighting. Power down any machinery before measuring threads on installed components. Keep the tool clean and dry to maintain leaf legibility and pivot action.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Type\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch Range\u003c\/strong\u003e: 4 to 80 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Leaves\u003c\/strong\u003e: 28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Location\u003c\/strong\u003e: External and Internal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocking Mechanism\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 41111607\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 14-036-8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51691703468338,"sku":"14-036-8","price":53.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/84a24eca53826cb451910463e835697a.jpg?v=1788288701","url":"https:\/\/voomisupply.com\/products\/spi-14-036-8-screw-pitch-gage-28-leaf-4-to-80-tpi","provider":"Voomi Supply","version":"1.0","type":"link"}