{"product_id":"705-piece-stainless-steel-m3-m4-m5-hex-bolt-nut-washer-assortment-kit","title":"705-Pc M3 M4 M5 Stainless Steel Hex Bolt Nut Washer Kit + Box","description":"\u003ch2\u003e705-Piece Stainless Steel Fastener Assortment Kit — M3, M4 \u0026amp; M5\u003c\/h2\u003e\n\u003cp\u003eKeep every DIY project, home repair, or workshop job on track with this comprehensive 705-piece stainless steel fastener kit. Packed with M3, M4, and M5 hex bolts, matching hex nuts, flat washers, and lock washers — all in one neatly organized storage box — this is the all-in-one hardware solution for hobbyists, makers, and professionals alike.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003e304 Stainless Steel — Built to Last\u003c\/h3\u003e\n\u003cp\u003eEvery piece in this kit is crafted from 304 stainless steel, offering a clean silver finish, smooth precision threads, and excellent resistance to rust and corrosion. Reliable for indoor and outdoor applications including furniture assembly, electronics, machinery maintenance, and metal bracketing work.\u003c\/p\u003e\n\n\u003ch3\u003eMultiple Sizes for Every Project\u003c\/h3\u003e\n\u003cp\u003eWith M3, M4, and M5 bolts available in 8 mm, 12 mm, 16 mm, and 20 mm lengths (approx. 0.31 in, 0.47 in, 0.63 in, 0.79 in), you'll always have the right fastener on hand — whether you're securing thin panels, brackets, or thicker equipment components.\u003c\/p\u003e\n\n\u003ch3\u003eComplete Fastening Combination\u003c\/h3\u003e\n\u003cp\u003eEach setup pairs a hex bolt with a flat washer, lock washer, and hex nut. The flat washer distributes load and protects contact surfaces; the lock washer adds stability and reduces the risk of loosening under vibration or regular use.\u003c\/p\u003e\n\n\u003ch3\u003eOrganized, Portable Storage Box\u003c\/h3\u003e\n\u003cp\u003eAll 705 pieces are sorted into a clear plastic storage case with individual compartments for each size — no more searching through tangled hardware bags. The compact case is easy to carry to any worksite or tuck away in a drawer until needed.\u003c\/p\u003e\n\n\u003ch3\u003eWide Range of Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHome maintenance \u0026amp; furniture assembly\u003c\/li\u003e\n  \u003cli\u003eElectronics \u0026amp; PCB assembly\u003c\/li\u003e\n  \u003cli\u003eMachinery repair \u0026amp; maintenance\u003c\/li\u003e\n  \u003cli\u003eMetal brackets \u0026amp; panel installations\u003c\/li\u003e\n  \u003cli\u003eGeneral workshop \u0026amp; DIY projects\u003c\/li\u003e\n  \u003cli\u003eSmall equipment component fastening\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e705 × 304 Stainless Steel Fasteners (hex bolts, hex nuts, flat washers, lock washers)\u003c\/li\u003e\n  \u003cli\u003eSizes: M3, M4, M5 — lengths 8 mm, 12 mm, 16 mm, 20 mm\u003c\/li\u003e\n  \u003cli\u003e1 × Clear plastic compartment storage box\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/34-compartment-double-sided-hardware-storage-box-removable-dividers\"\u003e34-Compartment Double-Sided Hardware Storage Box \u0026amp; Dividers\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/25-in-1-precision-magnetic-screwdriver-set-pro-repair-tool-kit\"\u003e25-in-1 Precision Magnetic Screwdriver Set | Pro Repair Kit\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/waterproof-cable-gland-set-pg7-pg9-nylon-connectors-10-pack\"\u003e10-Pack Waterproof Cable Glands PG7 PG9 Nylon Connectors\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What sizes and lengths are included in the 705-piece stainless steel fastener kit?\u003c\/h4\u003e\n\u003cp\u003eA: The kit includes M3, M4, and M5 hex bolts in four lengths — 8 mm, 12 mm, 16 mm, and 20 mm (approximately 0.31 in, 0.47 in, 0.63 in, and 0.79 in). Each bolt size is paired with matching hex nuts, flat washers, and lock washers for complete fastening setups.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these fasteners suitable for outdoor or moisture-prone environments?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. All fasteners are made from 304 stainless steel, which offers good corrosion and rust resistance, making them suitable for use in humid environments, outdoor fixtures, and applications where moisture exposure is a concern.\u003c\/p\u003e\n\u003ch4\u003eQ: How are the 705 pieces stored and organized?\u003c\/h4\u003e\n\u003cp\u003eA: The entire set comes in a clear plastic compartment storage box with separate sections for each size and type. This keeps bolts, nuts, flat washers, and lock washers neatly sorted so you can quickly find the right piece for any task without rummaging through loose hardware.\u003c\/p\u003e\n\u003ch4\u003eQ: What tools are needed to install these hex bolts and nuts?\u003c\/h4\u003e\n\u003cp\u003eA: A standard hex wrench (Allen key) or a socket wrench of the appropriate M3, M4, or M5 metric size is all you need to tighten the bolts and nuts securely. No specialized tools are required for most DIY and workshop applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What sizes and lengths are included in the 705-piece stainless steel fastener kit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The kit includes M3, M4, and M5 hex bolts in four lengths — 8 mm, 12 mm, 16 mm, and 20 mm (approximately 0.31 in, 0.47 in, 0.63 in, and 0.79 in). 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