{"id":9574558531821,"title":"M4 Carbon Steel Flat Washer, Black Oxidized Alloy Steel, 4.8 Grade Metal Flat Washer, 4mm ID, 9mm OD, 0.8mm Thickness, 500Pcs M4*9*0.8","handle":"m4-carbon-steel-flat-washer-black-oxidized-alloy-steel-4-8-grade-metal-flat-washer-4mm-id-9mm-od-0-8mm-thickness-500pcs-m4-9-0-8","description":"\u003ch3\u003eM4 Carbon Steel Flat Washer, Black Oxidized Alloy Steel, 4.8 Grade Metal Flat Washer, 4mm ID, 9mm OD, 0.8mm Thickness, 500Pcs\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eSpecification: M4 x 9 x 0.8mm Steel Flat Washers Inner Diameter: 4mm\/ 0.15\" ;\nOuter Diameter: 9mm\/ 0.35\" ; Thickness: 0.5mm\/ 0.03\" Surface Treatment:\nBlackening Material: It is a carbon spring steel with a wide range of uses.\nCompared with 65 steel, it has higher strength, hardness, elasticity and\nhardenability. This steel is generally used after quenching and tempering at\nmedium temperature. Material Chemical Composition (%): Carbon: 0.62-0.70,\nsilicon: 0.17-0.37, manganese: 0.90-1.20, phosphorus ≤ 0.035, sulfur ≤ 0.035,\nnickel ≤ 0.25, chromium ≤ 0.25, copper ≤ 0.25 Package Includes: 500 Pcs of M4\nSteel Flat Washers\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eMade of widely used carbon spring steel with higher strength, hardness, elasticity and hardenability.\u003c\/li\u003e\n \u003cli\u003eSize: 4mm\/ 0.15\" inner diameter, 9mm\/ 0.35\" outer diameter, 0.8mm\/ 0.03\" thickness.\u003c\/li\u003e\n \u003cli\u003eFlat washers evenly distribute pressure not only on the nut but also on the head of the fastener.\u003c\/li\u003e\n \u003cli\u003eThe washer prevents damage to the material and reduces the possibility that the nut will come loose from uneven surfaces.\u003c\/li\u003e\n \u003cli\u003ePackage Included: 500Pcs M4 Steel Flat Washers.\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-09-16T02:46:27+10:00","created_at":"2026-09-09T13:34:55+10:00","vendor":"NACX","type":"Flat Washers","tags":["industrial_Sep2026"],"price":15900,"price_min":15900,"price_max":15900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50650377060589,"title":"M4*9*0.8","option1":"M4*9*0.8","option2":null,"option3":null,"sku":"B09MMFGWYG","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"M4 Carbon Steel Flat Washer, Black Oxidized Alloy Steel, 4.8 Grade Metal Flat Washer, 4mm ID, 9mm OD, 0.8mm Thickness, 500Pcs M4*9*0.8 - M4*9*0.8","public_title":"M4*9*0.8","options":["M4*9*0.8"],"price":15900,"weight":372,"compare_at_price":null,"inventory_management":"shopify","barcode":"C187-190","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/leoforward.com\/cdn\/shop\/files\/B09MMFGWYG.jpg?v=1788924898","\/\/leoforward.com\/cdn\/shop\/files\/31-4K0KM2rL.jpg?v=1788924897","\/\/leoforward.com\/cdn\/shop\/files\/51PT8AXNjAL.jpg?v=1788924897","\/\/leoforward.com\/cdn\/shop\/files\/41x8hReUCWL.jpg?v=1788924898","\/\/leoforward.com\/cdn\/shop\/files\/51BTDcTJKgL.jpg?v=1788924897","\/\/leoforward.com\/cdn\/shop\/files\/51A_ZGs4pOL.jpg?v=1788924897"],"featured_image":"\/\/leoforward.com\/cdn\/shop\/files\/B09MMFGWYG.jpg?v=1788924898","options":["Size"],"media":[{"alt":null,"id":41956045914349,"position":1,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/leoforward.com\/cdn\/shop\/files\/B09MMFGWYG.jpg?v=1788924898"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/B09MMFGWYG.jpg?v=1788924898","width":500},{"alt":null,"id":41956045947117,"position":2,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/leoforward.com\/cdn\/shop\/files\/31-4K0KM2rL.jpg?v=1788924897"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/31-4K0KM2rL.jpg?v=1788924897","width":500},{"alt":null,"id":41956045979885,"position":3,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/leoforward.com\/cdn\/shop\/files\/51PT8AXNjAL.jpg?v=1788924897"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/51PT8AXNjAL.jpg?v=1788924897","width":500},{"alt":null,"id":41956046012653,"position":4,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/leoforward.com\/cdn\/shop\/files\/41x8hReUCWL.jpg?v=1788924898"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/41x8hReUCWL.jpg?v=1788924898","width":500},{"alt":null,"id":41956046045421,"position":5,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/leoforward.com\/cdn\/shop\/files\/51BTDcTJKgL.jpg?v=1788924897"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/51BTDcTJKgL.jpg?v=1788924897","width":500},{"alt":null,"id":41956046078189,"position":6,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/leoforward.com\/cdn\/shop\/files\/51A_ZGs4pOL.jpg?v=1788924897"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/51A_ZGs4pOL.jpg?v=1788924897","width":500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eM4 Carbon Steel Flat Washer, Black Oxidized Alloy Steel, 4.8 Grade Metal Flat Washer, 4mm ID, 9mm OD, 0.8mm Thickness, 500Pcs\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eSpecification: M4 x 9 x 0.8mm Steel Flat Washers Inner Diameter: 4mm\/ 0.15\" ;\nOuter Diameter: 9mm\/ 0.35\" ; Thickness: 0.5mm\/ 0.03\" Surface Treatment:\nBlackening Material: It is a carbon spring steel with a wide range of uses.\nCompared with 65 steel, it has higher strength, hardness, elasticity and\nhardenability. This steel is generally used after quenching and tempering at\nmedium temperature. Material Chemical Composition (%): Carbon: 0.62-0.70,\nsilicon: 0.17-0.37, manganese: 0.90-1.20, phosphorus ≤ 0.035, sulfur ≤ 0.035,\nnickel ≤ 0.25, chromium ≤ 0.25, copper ≤ 0.25 Package Includes: 500 Pcs of M4\nSteel Flat Washers\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eMade of widely used carbon spring steel with higher strength, hardness, elasticity and hardenability.\u003c\/li\u003e\n \u003cli\u003eSize: 4mm\/ 0.15\" inner diameter, 9mm\/ 0.35\" outer diameter, 0.8mm\/ 0.03\" thickness.\u003c\/li\u003e\n \u003cli\u003eFlat washers evenly distribute pressure not only on the nut but also on the head of the fastener.\u003c\/li\u003e\n \u003cli\u003eThe washer prevents damage to the material and reduces the possibility that the nut will come loose from uneven surfaces.\u003c\/li\u003e\n \u003cli\u003ePackage Included: 500Pcs M4 Steel Flat Washers.\u003c\/li\u003e\n \u003c\/ul\u003e"}