{"product_id":"m2-5-m16-black-12-9-steel-spring-ball-plunger-set-screw","title":"M2.5–M16 Black Grade 12.9 Steel Hex Socket Allen Spring Ball Plunger Set Screw Grub Bolt","description":"\u003ch2\u003eM2.5–M16 Black Grade 12.9 Steel Hex Socket Allen Spring Ball Plunger Set Screw Grub Bolt\u003c\/h2\u003e\u003cp\u003eBlack grade 12.9 steel spring ball plunger set screws for high-strength detent positioning and indexing applications. The spring-loaded ball tip provides positive, repeatable detent action. Grade 12.9 delivers maximum tensile strength for heavy-duty industrial positioning mechanisms where stainless steel would be insufficient.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAlloy Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrade\u003c\/th\u003e\n\u003ctd\u003e12.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eBlack oxide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive\u003c\/th\u003e\n\u003ctd\u003eHex socket (Allen key)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTip Type\u003c\/th\u003e\n\u003ctd\u003eSpring ball plunger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Range\u003c\/th\u003e\n\u003ctd\u003eM2.5, M3, M4, M5, M6, M8, M10, M12, M16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose Grade 12.9 Spring Ball Plunger Set Screws?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade 12.9 strength\u003c\/strong\u003e — 1220 MPa tensile strength; handles heavy-duty detent loads that would strip lower-grade set screws\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring ball plunger\u003c\/strong\u003e — positive detent action for indexing and positioning without tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack oxide finish\u003c\/strong\u003e — professional appearance; light corrosion resistance for indoor use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM2.5–M16 range\u003c\/strong\u003e — covers light electronics to heavy industrial positioning\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHeavy-duty rotary table and turret indexing\u003c\/li\u003e\n\u003cli\u003eCNC machine tool holder detent retention\u003c\/li\u003e\n\u003cli\u003eIndustrial jig and fixture positioning\u003c\/li\u003e\n\u003cli\u003eDrawer and cabinet latch mechanisms (high-cycle)\u003c\/li\u003e\n\u003cli\u003ePrecision instrument detent positioning\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eBlack grade 12.9 steel spring ball plunger set screws (quantity and size per selected variant)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"M2.5  5pcs \/ 4mm","offer_id":46885154455787,"sku":"380:201336457;5:202191810#M2.5  10pcs","price":5.3,"currency_code":"USD","in_stock":true},{"title":"M2.5  5pcs \/ 5mm","offer_id":46885154488555,"sku":"380:201336458#5mm;5:202191810#M2.5  10pcs","price":5.36,"currency_code":"USD","in_stock":true},{"title":"M2.5  5pcs \/ 8mm","offer_id":46885154521323,"sku":"380:200503925#8mm;5:202191810#M2.5  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