{"product_id":"accupro-t1640165-spiral-point-tap-4-40-3-flutes-plug","title":"Accupro T1640165 Spiral Point Tap 4-40 3 Flutes Plug","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO T1640165 is a spiral point tap designed for cutting internal 4-40 unified coarse threads in through-hole applications. Made from HSS-E vanadium high speed steel with an oxide finish, it offers improved wear resistance and heat tolerance compared to standard HSS taps. The plug chamfer style provides a gradual lead-in that distributes cutting forces across several threads, making it well suited for production tapping and repetitive operations. With 3 flutes and a right-hand thread direction, this tap pushes chips ahead of the cut, keeping the flutes clear in through-hole work. It is sized for use with standard machine tapping equipment and manual tap handles.\u003c\/p\u003e\u003cp\u003eThis tap is used in machine shops, maintenance and repair operations, and light manufacturing environments where 4-40 threaded holes are required in through-hole configurations. The 4-40 thread size is common in small fastener and instrument applications, including electrical enclosures, electronic assemblies, and light-duty mechanical components. It is appropriate for use in ferrous and non-ferrous metals as well as some plastics. The H5 thread limit designation suits applications requiring standard tolerance fits.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHSS-E vanadium high speed steel construction for extended tool life over standard HSS\u003c\/li\u003e\n\u003cli\u003eOxide finish reduces friction and improves lubrication retention during cutting\u003c\/li\u003e\n\u003cli\u003ePlug chamfer distributes cutting load across multiple thread leads\u003c\/li\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward, suited for through-hole tapping\u003c\/li\u003e\n\u003cli\u003eH5 thread limit for standard tolerance 4-40 threaded holes\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, compatible with standard tapping equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for cutting 4-40 unified coarse right-hand internal threads in through-hole applications across ferrous metals, non-ferrous metals, and select plastics.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed in a tap holder, tapping chuck, or manual tap wrench appropriate for the shank diameter. Secure the workpiece before tapping and use a suitable cutting fluid or tapping compound to extend tool life and improve thread quality. Ensure proper alignment between the tap and the pilot hole to avoid tap breakage. Follow applicable shop safety procedures when operating tapping equipment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Style\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: HSS-E Vanadium High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.874 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.433 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.5625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: T1640165\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51730712723762,"sku":"T1640165","price":25.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e27457cd39496c980a78972c67fff5af.jpg?v=1788721665","url":"https:\/\/voomisupply.com\/products\/accupro-t1640165-spiral-point-tap-4-40-3-flutes-plug","provider":"Voomi Supply","version":"1.0","type":"link"}