{"product_id":"4-8-grade-carbon-steel-hair-black-square-nut-iron-square-nut-fastener-wholesale-m4-m5-m6-m8-m10","title":"M4\/M5\/M6\/M8\/M10 4.8 grade carbon steel hair black square nut iron square nut fastener for Machinery \u0026 Construction","description":"\u003cdiv id=\"offer-template-0\"\u003e\n\u003cdiv style='color: rgb(31, 35, 41); font: 16px \/ 24px ui-sans-serif, system-ui, sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\"; font-size: 16px; font-weight: 400; line-height: 24px; text-align: left; white-space: normal; display: block; flex: 0 1 auto; flex-direction: row; justify-content: normal; align-items: normal; padding: 0px; margin: 0px; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0% \/ auto padding-box border-box; background-color: rgba(0, 0, 0, 0);'\u003eOur 4.8 grade carbon steel black oxide square nuts are professional fasteners designed for industrial, construction, and DIY applications. Crafted with high-quality carbon steel, these square nuts undergo a black oxide treatment to enhance corrosion resistance, wear resistance, and overall durability—ensuring long-term use even in humid or harsh working environments.\u003c\/div\u003e\n\n\u003cdiv style='color: rgb(31, 35, 41); font: 16px \/ 24px ui-sans-serif, system-ui, sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\"; font-size: 16px; font-weight: 400; line-height: 24px; text-align: left; white-space: normal; display: block; flex: 0 1 auto; flex-direction: row; justify-content: normal; align-items: normal; padding: 0px; margin: 0px; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0% \/ auto padding-box border-box; background-color: rgba(0, 0, 0, 0);'\u003e \u003c\/div\u003e\n\n\u003cdiv style='color: rgb(31, 35, 41); font: 16px \/ 24px ui-sans-serif, system-ui, sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\"; font-size: 16px; font-weight: 400; line-height: 24px; text-align: left; white-space: normal; display: block; flex: 0 1 auto; flex-direction: row; justify-content: normal; align-items: normal; padding: 0px; margin: 0px; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0% \/ auto padding-box border-box; background-color: rgba(0, 0, 0, 0);'\u003eAvailable in M4, M5, M6, M8, and M10 sizes, these square nuts feature precise thread machining and a compact square design, making them compatible with standard bolts, machinery, and hardware assemblies. The black oxide finish not only improves rust resistance but also gives the nuts a sleek, professional appearance, suitable for both industrial and decorative applications.\u003c\/div\u003e\n\n\u003cdiv style='color: rgb(31, 35, 41); font: 16px \/ 24px ui-sans-serif, system-ui, sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\"; font-size: 16px; font-weight: 400; line-height: 24px; text-align: left; white-space: normal; display: block; flex: 0 1 auto; flex-direction: row; justify-content: normal; align-items: normal; padding: 0px; margin: 0px; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0% \/ auto padding-box border-box; background-color: rgba(0, 0, 0, 0);'\u003e \u003c\/div\u003e\n\n\u003cdiv style='color: rgb(31, 35, 41); font: 16px \/ 24px ui-sans-serif, system-ui, sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\"; font-size: 16px; font-weight: 400; line-height: 24px; text-align: left; white-space: normal; display: block; flex: 0 1 auto; flex-direction: row; justify-content: normal; align-items: normal; padding: 0px; margin: 0px; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0% \/ auto padding-box border-box; background-color: rgba(0, 0, 0, 0);'\u003eIdeal for a wide range of scenarios: industrial machinery fastening, construction projects, furniture assembly, DIY hardware projects, and equipment maintenance. They provide a secure, tight connection, preventing loosening caused by vibration or external pressure. Each nut undergoes strict quality inspection to ensure consistent size, smooth threads, and reliable performance—meeting the high standards of professional engineering and daily DIY needs.\u003c\/div\u003e\n\n\u003cdiv style='color: rgb(31, 35, 41); font: 16px \/ 24px ui-sans-serif, system-ui, sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\"; font-size: 16px; font-weight: 400; line-height: 24px; text-align: left; white-space: normal; display: block; flex: 0 1 auto; flex-direction: row; justify-content: normal; align-items: normal; padding: 0px; margin: 0px; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0% \/ auto padding-box border-box; background-color: rgba(0, 0, 0, 0);'\u003e \u003c\/div\u003e\n\n\u003cdiv style='color: rgb(31, 35, 41); font: 16px \/ 24px ui-sans-serif, system-ui, sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\"; font-size: 16px; font-weight: 400; line-height: 24px; text-align: left; white-space: normal; display: block; flex: 0 1 auto; flex-direction: row; justify-content: normal; align-items: normal; padding: 0px; margin: 0px; background: rgba(0, 0, 0, 0) none repeat scroll 0% 0% \/ auto padding-box border-box; background-color: rgba(0, 0, 0, 0);'\u003eWhether you’re a professional in construction, a DIY enthusiast, or need reliable fasteners for equipment maintenance, these 4.8 grade carbon steel black oxide square nuts are the perfect choice for stable, long-lasting fastening solutions.\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"Vichok Hardware","offers":[{"title":"M4 * 7 (width) * 3 (thickness)","offer_id":46756508172465,"sku":"NUT00147-M4x7x3","price":0.02,"currency_code":"USD","in_stock":true},{"title":"M5 * 10 (width) * 5 (thickness)","offer_id":46756508205233,"sku":"NUT00147-M5x10x5","price":0.04,"currency_code":"USD","in_stock":true},{"title":"M6 * 10 (width) * 5 (thickness)","offer_id":46756508238001,"sku":"NUT00147-M6x10x5","price":0.04,"currency_code":"USD","in_stock":true},{"title":"M6 * 12 (width) * 6 (thickness)","offer_id":46756508270769,"sku":"NUT00147-M6x12x6","price":0.04,"currency_code":"USD","in_stock":true},{"title":"M6 * 14 (width) * 5 (thickness)","offer_id":46756508303537,"sku":"NUT00147-M6x14x5","price":0.06,"currency_code":"USD","in_stock":true},{"title":"M6 * 14 (width) * 6 (thickness)","offer_id":46756508336305,"sku":"NUT00147-M6x14x6","price":0.06,"currency_code":"USD","in_stock":true},{"title":"M8 * 12 (width) * 6 (thickness)","offer_id":46756508369073,"sku":"NUT00147-M8x12x6","price":0.06,"currency_code":"USD","in_stock":true},{"title":"M8 * 13 (width) * 6 (thickness)","offer_id":46756508401841,"sku":"NUT00147-M8x13x6","price":0.06,"currency_code":"USD","in_stock":true},{"title":"M8 * 14 (width) * 6 (thickness)","offer_id":46756508434609,"sku":"NUT00147-M8x14x6","price":0.06,"currency_code":"USD","in_stock":true},{"title":"M12 * 19 (width) * 10 (thickness)","offer_id":46756508467377,"sku":"NUT00147-M12x19x10","price":0.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0675\/7466\/1297\/files\/3aa8058ecf0b0126d8cda50d3c4fb06e.jpg?v=1775878604","url":"https:\/\/vichokhardware.com\/products\/4-8-grade-carbon-steel-hair-black-square-nut-iron-square-nut-fastener-wholesale-m4-m5-m6-m8-m10","provider":"Vichok Hardware","version":"1.0","type":"link"}