{"product_id":"bolt-nut-size-finder-keychain-gauge-metric-imperial","title":"Bolt \u0026 Nut Size Finder Keychain Gauge – Metric \u0026 Imperial","description":"\n\u003ch2\u003eNever Guess a Bolt Size Again\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003ePortable Bolt \u0026amp; Nut Size Finder Keychain Gauge\u003c\/strong\u003e is the compact, always-ready tool every mechanic, tradesperson, and DIY enthusiast needs. Clip it to your keys or belt loop and instantly identify bolt and nut sizes on the spot — no more guessing, no more wasted trips to the hardware store.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast \u0026amp; Accurate Size Verification:\u003c\/strong\u003e Quickly match bolt and nut sizes with clear engraved markings — reducing errors and saving valuable time on every job.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Unit Markings (Metric \u0026amp; Imperial):\u003c\/strong\u003e Covers both measurement systems with a measurement range of 0–80 mm, making it versatile for a wide range of fasteners and applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKeychain-Ready Portable Design:\u003c\/strong\u003e Lightweight and compact enough to attach to your keyring or belt loop so it's always within arm's reach whenever you need it.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRugged, Durable Build:\u003c\/strong\u003e Constructed from high-quality stainless steel to withstand frequent use in demanding workshop, automotive, and industrial environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application Range:\u003c\/strong\u003e Ideal for automotive repairs, home improvement projects, mechanical work, woodworking, and general industrial use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUnit Markings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetric \u0026amp; Imperial\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDesign\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKeychain \/ Portable\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eWhether you're a professional mechanic, an avid DIYer, or working in an industrial setting, this bolt and nut gauge is the perfect pocket companion. Stop second-guessing thread sizes and start working with confidence every single time.\u003c\/p\u003e\n\n\u003ch3\u003ePair It With These Tools\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-2-inch-drive-wheel-protector-impact-socket-set-storage-case\"\u003e1\/2\" Drive Wheel Protector Impact Socket Set + Storage Case\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-inch-carbon-steel-knife-sharpening-rod-honing-steel\"\u003e10-Inch Carbon Steel Knife Sharpening Rod | Honing Steel\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/hex-shank-wire-twister-drill-attachment-rebar-tie-tool\"\u003e1\/4\" Hex Shank Wire Twister Drill Attachment | Rebar Tie Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on fastener standards and measurement best practices, visit the \u003ca href=\"https:\/\/www.nist.gov\/pml\/weights-and-measures\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNational Institute of Standards and Technology (NIST) – Weights \u0026amp; Measures\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What measurement range does the bolt and nut size finder keychain cover?\u003c\/h4\u003e\n\u003cp\u003eA: The gauge covers a measurement range of 0–80 mm and includes both metric and imperial markings, making it suitable for the vast majority of standard bolts and nuts used in automotive, DIY, and industrial applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What material is the bolt size gauge keychain made from?\u003c\/h4\u003e\n\u003cp\u003eA: It is made from high-quality stainless steel, giving it excellent durability and resistance to wear — ideal for regular use in workshops, garages, and on job sites.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this tool be used for both professional mechanics and DIY home projects?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The portable keychain bolt gauge is designed for a wide range of users, from professional mechanics and industrial technicians to everyday DIY enthusiasts working on home improvement or woodworking projects.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the bolt size finder require any batteries or calibration?\u003c\/h4\u003e\n\u003cp\u003eA: No batteries or calibration are needed. The engraved markings are permanent and ready to use straight out of the box — simply slide your bolt or nut into the appropriate slot for an instant size reading.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What measurement range does the bolt and nut size finder keychain cover?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The gauge covers a measurement range of 0–80 mm and includes both metric and imperial markings, making it suitable for the vast majority of standard bolts and nuts used in automotive, DIY, and industrial applications.\"}}, {\"@type\": \"Question\", \"name\": \"What material is the bolt size gauge keychain made from?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is made from high-quality stainless steel, giving it excellent durability and resistance to wear — ideal for regular use in workshops, garages, and on job sites.\"}}, {\"@type\": \"Question\", \"name\": \"Can this tool be used for both professional mechanics and DIY home projects?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. 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The engraved markings are permanent and ready to use straight out of the box — simply slide your bolt or nut into the appropriate slot for an instant size reading.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Hand Tools\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/collections\/hand-tools\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Bolt \u0026 Nut Size Finder Keychain Gauge – Metric \u0026 Imperial\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/products\/bolt-nut-size-finder-keychain-gauge-metric-imperial\"}]}\u003c\/script\u003e","brand":"Zpaxo","offers":[{"title":"1PC","offer_id":54189891289398,"sku":"14:193#1PC","price":12.31,"currency_code":"USD","in_stock":false},{"title":"2PCS","offer_id":54189891322166,"sku":"14:350852#2PCS","price":12.31,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0989\/7774\/3158\/files\/S9198e88325774e1f88b79e7d0d4d1d0dJ.webp?v=1783276430","url":"https:\/\/0i45ne-c8.myshopify.com\/products\/bolt-nut-size-finder-keychain-gauge-metric-imperial","provider":"Zpaxo","version":"1.0","type":"link"}