{"product_id":"stainless-steel-bolts-nuts-assortment-kit-304-a2","title":"Stainless Steel Bolts and Nuts Assortment Kit 304 A2 Hex Head with Flat Lock Washers","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eStainless Steel Bolts and Nuts Assortment Kit — Rust-Proof Fasteners for Every Project\u003c\/h2\u003e\n\u003cp\u003eWhen a loose bolt or missing nut stops your project cold, you need a kit that has every size on hand. Whether you're a weekend DIYer tackling deck repairs or a seasoned mechanic keeping equipment running, mismatched fasteners waste time and money. This kit puts an end to hardware store runs.\u003c\/p\u003e\n\u003cp\u003eAvailable in two configurations: a 292-piece Metric set (M6 \/ M8 \/ M10) and a 262-piece SAE set (1\/4-20 \/ 5\/16-18 \/ 3\/8-16). Every piece is machined from 304 stainless steel (A2 grade) — the same corrosion-resistant alloy trusted in marine, food-processing, and outdoor environments. Each kit ships in a clear, compartmentalized storage case with a bonus precision tweezers for handling small hardware.\u003c\/p\u003e\n\u003cp\u003eFrom boat deck hardware and outdoor furniture assembly to HVAC brackets and automotive repairs, this stainless steel bolts and nuts assortment kit covers the fastener sizes you reach for most.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e✅\u003c\/span\u003e Metric variant fits M6, M8, and M10 threaded applications. SAE variant fits 1\/4-20, 5\/16-18, and 3\/8-16 UNC threaded applications.\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\u003cspan\u003e🔩 \u003cstrong\u003e304 A2 Stainless Steel Construction\u003c\/strong\u003e — Resists rust, corrosion, and staining in wet, marine, and outdoor environments without surface coatings that can chip or peel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e📦 \u003cstrong\u003eComprehensive Assortment in One Box\u003c\/strong\u003e — 292 pieces (Metric) or 262 pieces (SAE) covering the most commonly used bolt lengths, nut sizes, flat washers, and lock washers in a single purchase.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e🗂️ \u003cstrong\u003eOrganized Compartment Storage Case\u003c\/strong\u003e — Clear, labeled compartments keep every size separated and visible so you grab the right piece on the first try, every time.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e🔧 \u003cstrong\u003eHex Head Design for Maximum Torque\u003c\/strong\u003e — Standard hex profile works with any wrench, socket, or ratchet you already own — no specialty tools required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e🛡️ \u003cstrong\u003eFlat and Lock Washers Included\u003c\/strong\u003e — Flat washers distribute load; lock washers resist loosening from vibration — both included so your connections stay tight.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e🎯 \u003cstrong\u003eBonus Precision Tweezers\u003c\/strong\u003e — Stainless steel tweezers included in every kit for placing small fasteners in tight spaces without fumbling.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eMetric Kit — 292 Pieces (M6 \/ M8 \/ M10)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003eM6×12 Hex Flange Bolts — 32 pcs\u003c\/li\u003e\n\u003cli\u003eM6×16 Hex Flange Bolts — 8 pcs\u003c\/li\u003e\n\u003cli\u003eM6×20 Hex Flange Bolts — 8 pcs\u003c\/li\u003e\n\u003cli\u003eM6×25 Hex Flange Bolts — 6 pcs\u003c\/li\u003e\n\u003cli\u003eM6×30 Hex Flange Bolts — 5 pcs\u003c\/li\u003e\n\u003cli\u003eM6×16 Hex Bolts — 30 pcs\u003c\/li\u003e\n\u003cli\u003eM8×20 Hex Bolts — 10 pcs\u003c\/li\u003e\n\u003cli\u003eM8×25 Hex Bolts — 6 pcs\u003c\/li\u003e\n\u003cli\u003eM8×30 Hex Bolts — 5 pcs\u003c\/li\u003e\n\u003cli\u003eM10×30 Hex Bolts — 2 pcs\u003c\/li\u003e\n\u003cli\u003eM6 Flat Washers — 40 pcs | M6 Lock Washers — 80 pcs\u003c\/li\u003e\n\u003cli\u003eM8 Flat Washers — 33 pcs | M8 Lock Washers — 33 pcs\u003c\/li\u003e\n\u003cli\u003eM10 Flat Washers — 2 pcs | M10 Lock Washers — 2 pcs\u003c\/li\u003e\n\u003cli\u003eM6 Hex Nuts — 40 pcs | M8 Hex Nuts — 31 pcs | M10 Hex Nuts — 2 pcs\u003c\/li\u003e\n\u003cli\u003ePrecision Tweezers — 1 pc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSAE Kit — 262 Pieces (1\/4-20 \/ 5\/16-18 \/ 3\/8-16)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e1\/4-20×3\/4\" Hex Bolts — 10 pcs | 1\/4-20×1\" — 10 pcs | 1\/4-20×1-1\/2\" — 6 pcs | 1\/4-20×2\" — 35 pcs | 1\/4-20×2\" — 6 pcs\u003c\/li\u003e\n\u003cli\u003e5\/16-18×1\/2\" Hex Bolts — 25 pcs | 5\/16-18×1\/2\" — 4 pcs | 5\/16-18×3\/4\" — 10 pcs | 5\/16-18×1\" — 6 pcs | 5\/16-18×2\" — 4 pcs\u003c\/li\u003e\n\u003cli\u003e3\/8-16×2-1\/2\" Hex Bolts — 2 pcs | 3\/8-16×1-1\/2\" — 4 pcs\u003c\/li\u003e\n\u003cli\u003e1\/4-20 Hex Nuts — 35 pcs | 5\/16-18 Hex Nuts — 25 pcs | 3\/8-16 Hex Nuts — 6 pcs\u003c\/li\u003e\n\u003cli\u003e1\/4-20 Flat \u0026amp; Lock Washers — 35 pcs | 5\/16-18 Flat \u0026amp; Lock Washers — 25 pcs | 3\/8-16 Flat \u0026amp; Lock Washers — 6 pcs\u003c\/li\u003e\n\u003cli\u003ePrecision Tweezers — 1 pc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWho Is This For\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-usecases\"\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cstrong\u003e🔧 DIY Homeowners \u0026amp; Makers\u003c\/strong\u003e\n\u003cp\u003eKeep one kit in the garage and stop making hardware store trips mid-project. Deck repairs, fence posts, shelving brackets — this kit covers them all.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cstrong\u003e⚓ Marine \u0026amp; Outdoor Enthusiasts\u003c\/strong\u003e\n\u003cp\u003e304 stainless steel resists saltwater corrosion, making this kit ideal for boat hardware, dock fittings, and any outdoor installation exposed to moisture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cstrong\u003e🚗 Automotive \u0026amp; Mechanical Technicians\u003c\/strong\u003e\n\u003cp\u003eKeep a kit in the shop for quick repairs and bracket installations. The organized case means no digging through loose hardware bins during a job.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cstrong\u003e🏭 Maintenance \u0026amp; Facilities Teams\u003c\/strong\u003e\n\u003cp\u003eStock one kit per maintenance cart for HVAC, equipment, and facility repairs. The compartmentalized case makes restocking and inventory checks fast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel (A2 Grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNatural Stainless (Brushed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHead Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHex Head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Type — Metric\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetric Coarse (M6, M8, M10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Type — SAE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUNC (1\/4-20, 5\/16-18, 3\/8-16)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiece Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e292 pcs (Metric) \/ 262 pcs (SAE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded Hardware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHex Bolts, Hex Nuts, Flat Washers, Lock Washers, Tweezers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClear Compartmentalized Plastic Case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 1.3 kg (Metric) \/ 1.36 kg (SAE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCorrosion Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSuitable for marine, outdoor, and food-adjacent environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAge Warning\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot suitable for children under 5 years — small parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the Metric and SAE variants?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eThe Metric variant contains 292 pieces in M6, M8, and M10 sizes using metric coarse thread. The SAE variant contains 262 pieces in 1\/4-20, 5\/16-18, and 3\/8-16 sizes using UNC (Unified National Coarse) thread. Choose Metric for most international and European equipment; choose SAE for North American machinery and vehicles.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bolts suitable for outdoor or marine use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eYes. 304 stainless steel (A2 grade) offers strong resistance to rust and corrosion in wet, humid, and saltwater-adjacent environments. It is widely used in marine hardware, outdoor furniture, and coastal construction.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo the lock washers prevent bolts from loosening under vibration?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eYes. The split lock washers included in this kit are designed to bite into both the fastener and the mating surface under torque, resisting loosening caused by vibration and dynamic loads.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat tools do I need to install these bolts?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eA standard hex wrench, open-end wrench, or socket set is all you need. The hex head profile is compatible with any common hand tool or power tool socket. A precision tweezers is included in the kit for handling small pieces in tight spaces.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these bolts in food-processing or food-contact environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e304 stainless steel is generally considered food-safe and is commonly used in food-processing equipment. However, for regulated food-contact applications, please verify compliance with your local food safety standards before use.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre the bolt lengths consistent across all sizes in the kit?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eEach size group includes multiple lengths. For example, the Metric kit includes M6 bolts ranging from 12 mm to 30 mm, and M8 bolts from 20 mm to 30 mm. Refer to the What's in the Box section above for the full breakdown by size and quantity.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the storage case reusable and durable?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eYes. The clear plastic compartment case is designed for repeated use. Each compartment is sized to hold its designated fastener type, making it easy to refill individual sizes as needed.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\nReady to stop running out of the right fastener? Add this stainless steel bolts and nuts assortment kit to your cart and keep every project moving — no hardware store trip required.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Metric","offer_id":51485018587410,"sku":"GBTST0069","price":36.69,"currency_code":"USD","in_stock":true},{"title":"SAE","offer_id":51485018620178,"sku":"GBTST0067","price":36.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/MetricSilver292-01.jpg?v=1762200783","url":"https:\/\/homediyer.com\/products\/stainless-steel-bolts-nuts-assortment-kit-304-a2","provider":"HomeDIYer","version":"1.0","type":"link"}