{"product_id":"somta-series-581-hss-nps-3-8-bottom-tap-straight-flute-pipe-thread","title":"Somta Series 581 - HSS Straight Flute Parallel Pipe Bottom (Finishing) Tap NPS 3\/8\" x 18 TPI","description":"\u003ch4\u003eHSS NPS 3\/8″ Bottom Tap – Somta Series 581\u003c\/h4\u003e\n\u003cp\u003eThe SOMTA 5810953 – HSS NPS 3\/8″ Bottom Tap is a high-precision tool used for cutting straight (parallel) internal pipe threads according to ANSI NPS standards. Built from durable High-Speed Steel (HSS), this tap is ideal for threading the bottom of blind holes where a tight fit is required. The bottoming chamfer design engages only 1–2 threads, allowing full thread cutting very close to the bottom of the hole—perfect for electrical fittings, conduit systems, or low-pressure mechanical applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features \u0026amp; Benefits\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottoming Chamfer\u003c\/strong\u003e – Enables full thread depth in blind holes with only 1–2 lead threads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNPS Pipe Thread (Straight)\u003c\/strong\u003e – Used for parallel-threaded assemblies requiring precise mechanical fits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraight Flute Design\u003c\/strong\u003e – Supports stable cutting in a wide range of materials, including aluminum, brass, and steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Steel (HSS)\u003c\/strong\u003e – Provides excellent wear resistance and durability in workshop and production environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRight-Hand Threading\u003c\/strong\u003e – Standard direction for compatibility with most tapping systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart No:\u003c\/strong\u003e 5810953\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e NPS (National Pipe Straight)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Size:\u003c\/strong\u003e 3\/8″ NPS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap Style:\u003c\/strong\u003e Bottoming Tap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer:\u003c\/strong\u003e Bottom – 1 to 2 threads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type:\u003c\/strong\u003e Straight Flute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction:\u003c\/strong\u003e Right-Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-Speed Steel (HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Blind-hole tapping in mechanical and low-pressure pipe assemblies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ANSI NPS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhy Choose the SOMTA 5810953 Bottom Tap?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Cut Threads\u003c\/strong\u003e – Perfect for electrical fittings, conduit, and mechanical applications needing a straight pipe thread.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized for Blind Holes\u003c\/strong\u003e – Bottom chamfer enables maximum thread depth in limited spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry-Grade HSS\u003c\/strong\u003e – Long-lasting performance with excellent edge retention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Compliant\u003c\/strong\u003e – Ensures thread compatibility with standardized pipe fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003eSOMTA 5810953\u003c\/strong\u003e NPS 3\/8″ Bottom Tap is a reliable tool for professional and industrial use, delivering clean, accurate threads where blind-hole and parallel pipe fitting precision are essential.\u003c\/p\u003e","brand":"SOMTA","offers":[{"title":"Default Title","offer_id":51244875022372,"sku":"5810953","price":107.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0803\/5598\/3396\/files\/somta-taps-dies-somta-series-581-hss-straight-flute-parallel-pipe-bottom-finishing-tap-nps-3-8-x-18-tpi-4749508024069-1198292896.png?v=1786421380","url":"https:\/\/www.layerspecdynamics.com\/de\/products\/somta-series-581-hss-nps-3-8-bottom-tap-straight-flute-pipe-thread","provider":"LayerSpec Dynamics","version":"1.0","type":"link"}