{"product_id":"338-piece-thread-repair-kit-metric-sae","title":"338-Piece Thread Repair Kit, Metric \u0026 SAE","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003csection class=\"hdiy-overview\"\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eA stripped threaded hole does not always mean replacing the whole component. This 338-piece thread repair kit provides drills, taps, coil inserts, and installation tools for restoring damaged internal threads in metric and SAE sizes. Steel cutting tools prepare the hole, while 304 stainless steel inserts provide replacement threads for a correctly matched fastener.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"hdiy-compat\"\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eListed metric sizes: M5, M6, M8, M10, and M12. Listed SAE diameters: 1\/4 in., 5\/16 in., 3\/8 in., 7\/16 in., and 1\/2 in. Supplier-listed workpiece materials include aluminum, iron, carbon steel, bronze, and magnesium.\u003c\/p\u003e\n\u003cp class=\"hdiy-note\"\u003eThread pitches, SAE threads per inch, and insert lengths are not specified in the supplied listing. Confirm these details before ordering. Diameter alone does not establish fit, and the workpiece must have sufficient material for drilling and tapping.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\u003cspan\u003e338-piece assortment brings thread repair tools and inserts together for workshop use.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMetric and SAE diameter coverage supports repairs across different fastener systems.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e304 stainless steel coil inserts replace damaged internal threads.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeat-treated steel drills and taps have a supplier-stated hardness of HRC 55–62.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation and tang-breaking tools support the drill, tap, insert, and tang-removal workflow.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA rubber-coated grip on the insert tool provides a covered holding surface during installation.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cp\u003eThe 338-piece kit includes the following component types. Individual quantities per size are not specified.\u003c\/p\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003eTwist drills\u003c\/li\u003e\n\u003cli\u003eThread repair taps\u003c\/li\u003e\n\u003cli\u003e304 stainless steel thread inserts\u003c\/li\u003e\n\u003cli\u003eTang-breaking tools\u003c\/li\u003e\n\u003cli\u003eInstallation tools\u003c\/li\u003e\n\u003cli\u003eHex key\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"hdiy-usecases\"\u003e\u003ch2\u003eWho Is This For?\u003c\/h2\u003e\n\u003cp class=\"hdiy-usecase-item\"\u003eMechanics repairing stripped threaded holes in suitable automotive components.\u003c\/p\u003e\n\u003cp class=\"hdiy-usecase-item\"\u003eEquipment maintenance teams and experienced DIY users who can identify thread pitch and carry out accurate drilling and tapping.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Type\u003c\/th\u003e\n\u003ctd\u003eCoil-insert internal thread repair kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Piece Count\u003c\/th\u003e\n\u003ctd\u003e338\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Systems\u003c\/th\u003e\n\u003ctd\u003eMetric and SAE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eListed Metric Sizes\u003c\/th\u003e\n\u003ctd\u003eM5, M6, M8, M10, M12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eListed SAE Diameters\u003c\/th\u003e\n\u003ctd\u003e1\/4 in., 5\/16 in., 3\/8 in., 7\/16 in., 1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Pitch \/ TPI\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInsert Lengths\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInsert Material\u003c\/th\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrill and Tap Material\u003c\/th\u003e\n\u003ctd\u003eHeat-treated steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrill and Tap Hardness\u003c\/th\u003e\n\u003ctd\u003eHRC 55–62, supplier stated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eListed Overall Dimensions\u003c\/th\u003e\n\u003ctd\u003e14.96 × 12.20 × 3.94 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eListed Product Weight\u003c\/th\u003e\n\u003ctd\u003e7.64 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"hdiy-faq\"\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich metric sizes are included?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe listed metric sizes are M5, M6, M8, M10, and M12. Exact thread pitches are not provided; contact us to confirm the pitch needed for your repair.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhich SAE sizes are included?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe listed diameters are 1\/4 in., 5\/16 in., 3\/8 in., 7\/16 in., and 1\/2 in. Confirm the threads per inch before purchase; the listing does not establish UNC or UNF coverage.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat are the inserts made from?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe coil thread inserts are made from 304 stainless steel. The drills and taps are heat-treated steel.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow does a coil-insert repair work?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe general sequence is to drill the damaged hole, tap it with the matching repair tap, install the correct insert, and remove its tang where required. Follow the tool instructions and component repair requirements for dimensions and installation depth.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I use it on aluminum or steel?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe supplier lists aluminum, iron, carbon steel, bronze, and magnesium as intended workpiece materials. Suitability also depends on material condition, hole location, and remaining wall thickness.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it repair every engine thread?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNo universal engine compatibility is established. Confirm diameter, pitch, insert length, access, and the component manufacturer's repair requirements. Safety-critical repairs should be assessed by a qualified technician.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eAre quantities for each insert size available?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe supplied listing gives a total of 338 pieces but does not specify counts for each size. Contact us to confirm if you need a particular quantity or insert length.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/section\u003e\u003cdiv class=\"hdiy-cta\"\u003e\u003cp\u003eMatch your thread diameter, pitch, and required insert length before ordering. See current offers at checkout.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Default","offer_id":52733783376146,"sku":"T3342P456035","price":104.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/e823517b776344de833909f9d8eb3ad5.jpg?v=1790153680","url":"https:\/\/homediyer.com\/products\/338-piece-thread-repair-kit-metric-sae","provider":"HomeDIYer","version":"1.0","type":"link"}