{"product_id":"4071-nuts-and-bolts-assortment-kit-4mm-30mm-large-metric-fastener","title":"4071 Nuts and Bolts Assortment Kit 4MM-30MM - Large Metric Fastener","description":"\u003cp\u003eIn this review of the 4071 Nuts And Bolts Assortment Kit, the bottom line is clear: this kit is aimed at hobbyists, makers and tradespeople who need a large, organized selection of metric fasteners for ongoing projects. The single biggest reason to buy is the sheer quantity and range - 4071 pieces including matched screws, nuts and washers in 39 sizes - which turns frequent trips to the hardware store into a thing of the past and keeps repair and build work moving without searching for parts.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassive quantity:\u003c\/strong\u003e 4071 total pieces provide long-term supply for multiple projects so you rarely run out of common sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete matched sets:\u003c\/strong\u003e The kit includes screws, nuts, flat washers and lock washers in coordinated counts so fastener combinations are ready for assembly work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide size range:\u003c\/strong\u003e 39 sizes from 4mm to 30mm cover typical needs for 3D printers, electronics and household repairs, reducing substitutions or compromises.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable material finishes:\u003c\/strong\u003e Upgraded zinc electroplated and black oxidized production gives extended rust prevention and cleaner appearance without extra oiling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade alloy steel:\u003c\/strong\u003e Screws made from higher grade alloy steel (10.9\/12.9 mentioned) improve strength and durability for mechanical applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable organizer case:\u003c\/strong\u003e A reusable storage box with upgraded lock buckles keeps the assortment tidy and easy to carry to job sites.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit suits 3D printing enthusiasts, electricians doing small installations, DIYers restoring appliances and any hobbyist who builds or repairs hardware frequently and wants a comprehensive metric assortment on hand. The large counts and mixed finishes make it useful where many identical fasteners are needed across projects.\u003c\/p\u003e\n\u003cp\u003eIt is less ideal for someone who only needs a few specialty fasteners or prefers imperial sizes, since the kit focuses on metric M2 to M5 ranges and prioritizes volume over rare specialty parts. Also, professionals who require traceable certified fasteners for regulated applications should look elsewhere.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtremely large inventory of screws, nuts and washers reduces repeat purchases and keeps work uninterrupted.\u003c\/li\u003e\n\u003cli\u003eWell organized in a portable box with secure lock buckles for easy transport and reuse.\u003c\/li\u003e\n\u003cli\u003eUpgraded zinc plating and black oxidized options give improved corrosion resistance and a cleaner look.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVolume-focused kit may contain more common sizes than a user needs, making it less economical for single-use buyers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal pieces\u003c\/td\u003e\n\u003ctd\u003e4071 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrews included\u003c\/td\u003e\n\u003ctd\u003e940 pcs (various sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNuts included\u003c\/td\u003e\n\u003ctd\u003e940 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWashers included\u003c\/td\u003e\n\u003ctd\u003e1090 flat + 1090 lock washers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize range\u003c\/td\u003e\n\u003ctd\u003e39 sizes, 4mm to 30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\/grade\u003c\/td\u003e\n\u003ctd\u003eAlloy steel, 10.9\/12.9 grade (zinc plated \/ black oxidized)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessories\u003c\/td\u003e\n\u003ctd\u003e5 L wrenches, 5 50mm hex bits, 1 tweezer, storage case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 4071 Nuts And Bolts Assortment Kit is excellent value for makers and small tradespeople who need a ready stock of metric fasteners. Its enormous quantity, matched components and durable finishes make it a practical time saver for repair and build work, while the portable organizer keeps parts accessible. If you need long-term supply of common metric sizes, this kit delivers solid utility and convenience.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include washers and lock washers?\u003c\/strong\u003e\u003cbr\u003eYes. The set contains 1090 flat washers and 1090 lock washers alongside the screws and nuts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the fasteners corrosion resistant?\u003c\/strong\u003e\u003cbr\u003eThe screws come in upgraded zinc electroplated and black oxidized finishes for extended rust prevention without additional oiling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the set portable for job site use?\u003c\/strong\u003e\u003cbr\u003eYes. Fasteners are stored in a reusable portable organizer box with upgraded lock buckles for secure transport.\u003c\/p\u003e","brand":"K Kwokker","offers":[{"title":"Default Title","offer_id":48177377640667,"sku":"B0FH6W2SV5","price":35.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81Qj7wKCeAL._SL1500.jpg?v=1769613465","url":"https:\/\/gearmusthave.com\/products\/4071-nuts-and-bolts-assortment-kit-4mm-30mm-large-metric-fastener","provider":"GearMustHave","version":"1.0","type":"link"}