{"product_id":"spi-21-246-4-flat-contact-point-dial-indicator-4-48","title":"Spi 21-246-4 Flat Contact Point Dial Indicator 4-48","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 21-246-4 is a flat contact point designed for use with dial indicators in precision measurement applications. Machined from black oxide steel, this contact point features a 4-48 thread for secure attachment to AGD Group 1 dial indicators. The contact point measures 1-1\/4 inches in length and 3\/16 inches in diameter, providing a stable flat contact surface for repeatable gauge readings. It is a direct-fit accessory for technicians and machinists who require accurate surface contact during inspection, setup, or in-process measurement tasks.\u003c\/p\u003e\n\u003cp\u003eThis contact point is suited for use on the shop floor, inspection bench, or in field measurement environments where dial indicators are part of standard metrology practice. The flat contact geometry makes it appropriate for checking flat surfaces, shoulders, and faces on machined components. It meets AGD Group 1 industry designation, which covers standard dial indicators commonly found in manufacturing, toolroom, and quality control settings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFlat contact point geometry for consistent surface contact on flat and faced workpieces\u003c\/li\u003e\n  \u003cli\u003eBlack oxide steel construction for corrosion resistance and durability\u003c\/li\u003e\n  \u003cli\u003e4-48 thread matches AGD Group 1 dial indicator spindle standards\u003c\/li\u003e\n  \u003cli\u003e1-1\/4 inch contact point length for reach in standard indicator setups\u003c\/li\u003e\n  \u003cli\u003e3\/16 inch diameter provides a compact, defined contact area\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with dial indicators meeting AGD Group 1 standards and fitted with a 4-48 threaded spindle contact port. Verify thread size and contact port specification on the indicator before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by hand-threading the contact point onto the dial indicator spindle. Avoid over-tightening, as excessive torque can damage the fine 4-48 thread on the indicator spindle. Ensure the indicator is removed from active use and not under load before swapping contact points. A contact point wrench appropriate for the diameter is recommended to maintain proper seating without marring the contact surface.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Point Style\u003c\/strong\u003e: Flat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Material\u003c\/strong\u003e: Black Oxide Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-48\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Point Length\u003c\/strong\u003e: 1-1\/4 inches (1.2500 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Designation\u003c\/strong\u003e: AGD Group 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFor Use With\u003c\/strong\u003e: Dial Indicators\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\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: 21-246-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51700555809074,"sku":"21-246-4","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7162dbe9bd9c0a81053e731a130bb0d8.jpg?v=1788391898","url":"https:\/\/voomisupply.com\/products\/spi-21-246-4-flat-contact-point-dial-indicator-4-48","provider":"Voomi Supply","version":"1.0","type":"link"}