{"product_id":"260pcs-4-40-unc-304-ss-button-head-socket-cap-screws-hex-nuts-kit-size-4-40-unc-1","title":"260PCS #4-40 UNC 304 SS Button-Head Socket Cap Screws \u0026 Hex Nuts Kit - size: #4-40 UNC","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAll-in-One 260PCS #4-40 UNC Button‑Head Socket Cap Screws \u0026amp; Hex Nuts Assortment:This single-size inch coarse thread hardware set totals 260 pieces. Button head screw lengths:3\/16\",1\/4\",5\/16\",3\/8\",1\/2\",5\/8\",3\/4\",7\/8\",1\" (20pcs each), paired with 80pcs #4-40 UNC hex nuts. All screws feature full right-hand thread, length measured from beneath the rounded button head for consistent flush mounting\u003c\/li\u003e\n\u003cli\u003eCorrosion‑Resistant 304 Stainless Steel Construction:All screws and nuts are manufactured from solid 304 stainless steel. It provides superior anti‑oxidation and chemical corrosion resistance and may be mildly magnetic. Burr‑free uniform coarse threads support repeated assembly and disassembly, more durable than carbon steel fasteners; not suitable for heavy high-tension load fastening scenarios\u003c\/li\u003e\n\u003cli\u003eSmooth Low-Profile Button Head Internal Hex Design:Domed button head creates a wide flat bearing surface to distribute pressure evenly and avoid scratching workpieces, delivering a neat finished surface after installation. Internal hex socket fits standard allen keys for secure torque tightening\u003c\/li\u003e\n\u003cli\u003eFull Thread Reliable Locking Structure:Full-length threaded shank maximizes meshing contact area with hex nuts, effectively preventing loosening under minor vibration, perfect for small machinery, electronic equipment and model assembly\u003c\/li\u003e\n\u003cli\u003eSeparated Plastic Storage Case \u0026amp; Versatile Usage Scenarios:Comes with transparent compartmentalized plastic storage box, each size stored independently for quick lookup and anti-loss. Widely applied to industrial machinery assembly, automotive maintenance, electronic enclosures, RC models, workshop repair and all hobby DIY projects for professionals and amateurs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e #4-40 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel 304\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e HVAZI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem dimensions L x W x H:\u003c\/strong\u003e 5.2 x 2.75 x 0.9 inches\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Brand: HVAZI","offers":[{"title":"Default Title","offer_id":50590682022146,"sku":"B09XHJG8Y8-size-4-40-unc","price":20.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/2534\/0418\/files\/51Q_C1aCuGL_a757d3c0-f184-452c-8b0f-00a263aaf10f.jpg?v=1791089384","url":"https:\/\/mrovanta.com\/products\/260pcs-4-40-unc-304-ss-button-head-socket-cap-screws-hex-nuts-kit-size-4-40-unc-1","provider":"MROVanta","version":"1.0","type":"link"}