{"product_id":"1-4-20-unc-spiral-flute-threading-tap-uncoated-hss-h2","title":"1\/4-20 UNC Spiral Flute Tap – Uncoated HSS H2 Tolerance","description":"\n\u003ch2\u003e1\/4-20 UNC Spiral Flute Threading Tap – Uncoated HSS, H2 Tolerance\u003c\/h2\u003e\n\u003cp\u003eCut clean, precise threads every time with this professional-grade \u003cstrong\u003e1\/4-20 UNC Spiral Flute Threading Tap\u003c\/strong\u003e. Machined from High Speed Steel (HSS) with an H2 tolerance rating, this tap delivers consistent accuracy for metalworking enthusiasts and seasoned machinists alike. Whether you're working on a hobby project or a production run, this tap is built to handle the job.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandardized 1\/4-20 UNC Threading:\u003c\/strong\u003e Conforms to the widely used UNC thread standard with H2 tolerance grade for precise, reliable thread cutting every time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Flute Design:\u003c\/strong\u003e The upward-curling spiral flute geometry efficiently evacuates chips as you tap, producing cleaner threads and enabling faster, smoother tapping in blind holes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Speed Steel (HSS) Construction:\u003c\/strong\u003e Engineered for high hardness, excellent toughness, heat resistance, and outstanding wear resistance — ensuring a long service life even under demanding conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUncoated Base Substrate:\u003c\/strong\u003e No additional coatings mean this tap excels as a general-purpose threading solution, ideal for a broad range of materials.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Material Compatibility:\u003c\/strong\u003e Designed for use on aluminum, die steel, stainless steel, bronze, hard plastics, and other sticky or tough materials.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMachine Compatible:\u003c\/strong\u003e Suitable for use on drilling machines, tapping machines, CNC machines, and milling machines. Use with tapping oil for best thread quality and extended tap life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/4-20 UNC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Speed Steel (HSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTolerance Grade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlute Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpiral Flute\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUncoated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlind holes, general metalworking\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 x Spiral Flute Threading Tap\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 1\/4-20 UNC Spiral Flute Threading Tap (Uncoated HSS)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-2-inch-8-piece-hex-short-socket-set-vanadium-steel\"\u003e1\/2\" Drive 8-Piece Hex Short Socket Set – Vanadium Steel\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/hex-nut-bolt-extractor-tool-kit-10-piece\"\u003e10-Pc Hex Nut \u0026amp; Bolt Extractor Kit 9–19mm | HIP Tools\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/105-degree-right-angle-driver-with-hex-screwdriver-bit\"\u003e105° Right Angle Driver with 1\/4\" Hex Screwdriver Bit | HIP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Monitor color settings may cause slight color variation from actual product. Please allow for minor manual measurement tolerances.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What materials can the 1\/4-20 UNC HSS spiral flute tap be used on?\u003c\/h4\u003e\n\u003cp\u003eA: This spiral flute threading tap is suitable for a wide range of materials including aluminum, die steel, stainless steel, bronze, hard plastics, and other sticky or tough materials. Its HSS construction gives it the hardness and toughness needed for demanding metalworking tasks.\u003c\/p\u003e\n\u003ch4\u003eQ: Why choose a spiral flute tap over a straight flute tap?\u003c\/h4\u003e\n\u003cp\u003eA: A spiral flute tap is specifically designed to push chips upward and out of the hole as you tap, making it ideal for blind hole applications where chips cannot exit from the bottom. This results in cleaner threads, reduced clogging, and a smoother overall tapping experience.\u003c\/p\u003e\n\u003ch4\u003eQ: What machines is this tap compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This 1\/4-20 UNC threading tap is compatible with drilling machines, tapping machines, CNC machining centers, and milling machines. For best results and to extend the tap's lifespan, always use an appropriate tapping oil or cutting fluid during the tapping process.\u003c\/p\u003e\n\u003ch4\u003eQ: What does the H2 tolerance grade mean for this tap?\u003c\/h4\u003e\n\u003cp\u003eA: H2 tolerance grade refers to the allowable dimensional variation of the tap's threads. It indicates a tight, precise tolerance range that ensures the cut threads will mate accurately with standard 1\/4-20 UNC fasteners, providing reliable thread quality for both commercial and DIY metalworking projects.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What materials can the 1\/4-20 UNC HSS spiral flute tap be used on?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This spiral flute threading tap is suitable for a wide range of materials including aluminum, die steel, stainless steel, bronze, hard plastics, and other sticky or tough materials. 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