{"product_id":"astro-pneumatic-1-4-20-long-mandrel-lm1-4-20","title":"Astro Pneumatic 1\/4\"-20 Long Mandrel | LM1\/4-20","description":"\u003ch2 data-end=\"103\" data-start=\"79\" data-section-id=\"9berv5\"\u003eProduct Description\u003c\/h2\u003e\n\u003cp data-path-to-node=\"1\"\u003eThe Astro Tools 1\/4\"-20 Long Mandrel (SKU: LM1\/4-20) is a precision-machined replacement part designed specifically for \u003ca href=\"https:\/\/www.titanium22.ca\/collections\/astro-pneumatic\" title=\"Astro Pneumatic Canada | Titanium Tools \u0026amp; Equipment\"\u003eAstro Pneumatic\u003c\/a\u003e hand rivet nut setters, particularly the heavy-duty Astro 1450 series. Over hundreds of pulling cycles, even the toughest tool steel can experience thread wear, stretching, or snapping. This replacement long mandrel allows technicians to affordably repair their existing tool rather than purchasing an entirely new rivet gun assembly.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eCrafted from high-strength steel alloy and finished with a durable black oxide coating to resist corrosion, this mandrel is built to withstand the immense mechanical leverage required to set 1\/4\"-20 threaded inserts into sheet metal and structural framing. Because it features an extended \"Long Mandrel\" profile, it provides the necessary clearance and stroke length required by specific Astro rivet nut setters, ensuring your shop experiences minimal downtime during custom fabrication or collision repair projects.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"3\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-path-to-node=\"4\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,0,0\"\u003e\u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"0\"\u003eExtended Profile:\u003c\/b\u003e Features the specific \"Long\" shaft profile required to fit properly within the Astro 1450 series and compatible hand rivet nut setters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,1,0\"\u003e\u003cb data-path-to-node=\"4,1,0\" data-index-in-node=\"0\"\u003e1\/4\"-20 Thread Pitch:\u003c\/b\u003e Perfectly machined to securely grip and set standard SAE 1\/4\"-20 threaded rivet nuts without cross-threading.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,2,0\"\u003e\u003cb data-path-to-node=\"4,2,0\" data-index-in-node=\"0\"\u003eHeavy-Duty Steel Alloy:\u003c\/b\u003e Forged from high-grade steel to resist the extreme tensile pulling forces generated during heavy-duty blind riveting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,3,0\"\u003e\u003cb data-path-to-node=\"4,3,0\" data-index-in-node=\"0\"\u003eBlack Oxide Finish:\u003c\/b\u003e Coated in an industrial black oxide finish to naturally resist shop corrosion, rust, and thread galling over time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,4,0\"\u003e\u003cb data-path-to-node=\"4,4,0\" data-index-in-node=\"0\"\u003eCost-Effective Repair:\u003c\/b\u003e Provides a direct, drop-in replacement that restores your broken or worn tool to factory working condition in seconds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"5\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cb data-path-to-node=\"6,0,0\" data-index-in-node=\"0\"\u003eTool Maintenance:\u003c\/b\u003e Affordably rebuilding an Astro Pneumatic 1450 hand riveter that has suffered a snapped, stripped, or worn internal mandrel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"0\"\u003eCustom Fabrication:\u003c\/b\u003e Setting reliable 1\/4\"-20 SAE mounting points into brackets, chassis plates, and body panels without tool downtime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cb data-path-to-node=\"6,2,0\" data-index-in-node=\"0\"\u003eProfessional Auto Body Shops:\u003c\/b\u003e Keeping essential spare parts on hand to prevent workflow interruptions during complex structural installations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"8\"\u003eCommon Questions\u003c\/h4\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eQ: What is the difference between this mandrel (LM1\/4-20) and the standard 1442-A32 mandrel?\u003c\/b\u003e \u003cbr\u003e\u003cstrong\u003eA: \u003c\/strong\u003eThe \"LM\" in LM1\/4-20 stands for \u003ci data-path-to-node=\"9\" data-index-in-node=\"122\"\u003eLong Mandrel\u003c\/i\u003e. While both mandrels feature a 1\/4\"-20 thread pitch, this specific unit has an extended shaft length. It is designed to fit specific tool geometries, such as the Astro 1450 hand riveter, which requires a longer internal reach and stroke than the more compact 1442 series.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eQ: Does this include the exterior nosepiece?\u003c\/b\u003e \u003cbr\u003e\u003cstrong\u003eA: \u003c\/strong\u003eNo, this product (LM1\/4-20) is the threaded internal replacement mandrel only. You will need to reuse the existing outer metal nosepiece currently installed on your rivet tool.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eQ: Can I use this on an air-powered rivet gun?\u003c\/b\u003e \u003cbr\u003e\u003cstrong\u003eA: \u003c\/strong\u003eNo. This replacement mandrel is specifically machined and threaded for Astro Pneumatic's \u003ci data-path-to-node=\"11\" data-index-in-node=\"133\"\u003emanual\u003c\/i\u003e (hand-lever) rivet nut setters. It is not designed to thread into pneumatic-hydraulic air guns like the PRN series or drill adapters like the ADN14.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb data-path-to-node=\"13\" data-index-in-node=\"256\"\u003eSearch Keywords:\u003c\/b\u003e Astro Tools LM1\/4-20, 1\/4-20 long mandrel, Astro 1450 replacement parts, rivet nut setter parts, auto body tool repair, Astro Pneumatic tools Canada, threaded insert mandrel, 1\/4-20 rivet gun replacement\u003c\/p\u003e","brand":"Astro Pneumatic","offers":[{"title":"Default Title","offer_id":48882040963307,"sku":"LM1\/4-20","price":8.94,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0545\/1061\/6745\/files\/ComingSoon.jpg?v=1749493186","url":"https:\/\/www.titanium22.ca\/products\/astro-pneumatic-1-4-20-long-mandrel-lm1-4-20","provider":"Titanium Tools \u0026 Equipment Inc","version":"1.0","type":"link"}