{"id":15863055581344,"title":"1\/2\"-13 x 3-1\/2\" Grade 8 Carriage Bolts (10-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 3.5\" Black Finish Bolts, Washers, Nuts 10","handle":"1-2-13-x-3-1-2-grade-8-carriage-bolts-10-pack-heavy-duty-coarse-thread-bolts-with-washers-and-nylon-lock-nuts-round-head-square-neck-sae-j429-3-5-black-finish-bolts-washers-nuts-10","description":"\u003ch3\u003e1\/2\"-13 x 3-1\/2\" Grade 8 Carriage Bolts (10-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 3.5\" Black Finish\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThese 1\/2\"-13 x 3-1\/2\" (3.5\") long Grade 8 (G8) Carriage Bolts are engineered\nfor applications where strength, reliability, and vibration resistance matter\nmost. Black finish on bolts and nuts. Each pack includes 10 Grade 8 carriage\nbolts, 10 hardened yellow zinc washers, and 10 nylon lock nuts. Designed for\nuse in automotive repairs, trailer builds, agricultural equipment, shop\nmachinery, and structural assemblies, this product eliminates the need to\nsource parts separately—saving time while ensuring proper fit and performance.\nWhether you’re a professional mechanic, fabricator, or serious DIYer, this\nfastener kit delivers the confidence of industrial-grade hardware in a\nconvenient, ready-to-use package.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eComplete 10-packs: Includes 10 Grade 8 carriage bolts, 10 hardened 1\/2\" washers, 10 1\/2\"-13 nylon lock nuts. Bolts 1\/2\" diameter x 3-1\/2\" long. Plain Black finish on bolts and nuts, yellow zinc on washers.\u003c\/li\u003e\n \u003cli\u003eSmooth round head with square neck Features a domed, low-profile head and square shoulder that locks into wood or other materials to help prevent bolt rotation during tightening, allowing installation with a single wrench.\u003c\/li\u003e\n \u003cli\u003eGrade 8 Strength for Demanding Jobs: High-tensile SAE J429 Grade 8 bolts deliver superior load capacity and shear strength. Threads are made to the requirements of ASME B1.1. ASME B18.5 Dimensional Requirements. SAE J429 Material and Strength Level. ASTM F788 Surface Discontinuities. ASME B18.18 Inspection and Quality Assurance. Washers are hardened, compatible with Grade 8 systems. Nuts are Grade N8, compatible with Grade 8. Nylon resistant for up to 250 degrees F.\u003c\/li\u003e\n \u003cli\u003ePrecision-Matched Components: All fasteners are 1\/2\"-13 UNC for reliable fit and consistent clamping force across every assembly no mismatched hardware, no guesswork. Black finish on bolts and nuts, yellow zinc on washers.\u003c\/li\u003e\n \u003cli\u003eBuilt for Pros \u0026amp; Serious DIYers: Whether youre repairing equipment, building fixtures, or assembling heavy components, this kit delivers industrial-grade reliability in a compact, easy-to-store format.\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-09-12T15:10:53+10:00","created_at":"2026-09-10T09:20:02+10:00","vendor":"Quantum Forge","type":"Carriage Bolts","tags":["heavy_industrial_Sep2026"],"price":31100,"price_min":31100,"price_max":31100,"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":58888738406560,"title":"10 \/ Bolts, Washers, Nuts","option1":"10","option2":"Bolts, Washers, Nuts","option3":null,"sku":"B0H8X1YCF7","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"1\/2\"-13 x 3-1\/2\" Grade 8 Carriage Bolts (10-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 3.5\" Black Finish Bolts, Washers, Nuts 10 - 10 \/ Bolts, Washers, Nuts","public_title":"10 \/ Bolts, Washers, Nuts","options":["10","Bolts, Washers, Nuts"],"price":31100,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"QFG37291-FBA","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/dingoship.com.au\/cdn\/shop\/files\/B0H8X1YCF7.jpg?v=1788996004","\/\/dingoship.com.au\/cdn\/shop\/files\/41Dr6NvtAPL_450d575c-4380-45af-9541-4d63c88168a0.jpg?v=1788996004","\/\/dingoship.com.au\/cdn\/shop\/files\/31Nip2NMaRL_f35298f7-cc0f-4acf-a03f-414434b9c51a.jpg?v=1788996004","\/\/dingoship.com.au\/cdn\/shop\/files\/41ntt8W_SVL.jpg?v=1788996004","\/\/dingoship.com.au\/cdn\/shop\/files\/31KvWV9UMGL_dc5c4c77-1275-47c7-92f7-668766dd1faf.jpg?v=1788996004"],"featured_image":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0H8X1YCF7.jpg?v=1788996004","options":["Number of Items","Set name"],"media":[{"alt":null,"id":70277280170144,"position":1,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0H8X1YCF7.jpg?v=1788996004"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0H8X1YCF7.jpg?v=1788996004","width":500},{"alt":null,"id":70277280202912,"position":2,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41Dr6NvtAPL_450d575c-4380-45af-9541-4d63c88168a0.jpg?v=1788996004"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41Dr6NvtAPL_450d575c-4380-45af-9541-4d63c88168a0.jpg?v=1788996004","width":500},{"alt":null,"id":70277280235680,"position":3,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31Nip2NMaRL_f35298f7-cc0f-4acf-a03f-414434b9c51a.jpg?v=1788996004"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31Nip2NMaRL_f35298f7-cc0f-4acf-a03f-414434b9c51a.jpg?v=1788996004","width":500},{"alt":null,"id":70277280268448,"position":4,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41ntt8W_SVL.jpg?v=1788996004"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41ntt8W_SVL.jpg?v=1788996004","width":500},{"alt":null,"id":70277280301216,"position":5,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31KvWV9UMGL_dc5c4c77-1275-47c7-92f7-668766dd1faf.jpg?v=1788996004"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31KvWV9UMGL_dc5c4c77-1275-47c7-92f7-668766dd1faf.jpg?v=1788996004","width":500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003e1\/2\"-13 x 3-1\/2\" Grade 8 Carriage Bolts (10-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 3.5\" Black Finish\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThese 1\/2\"-13 x 3-1\/2\" (3.5\") long Grade 8 (G8) Carriage Bolts are engineered\nfor applications where strength, reliability, and vibration resistance matter\nmost. Black finish on bolts and nuts. Each pack includes 10 Grade 8 carriage\nbolts, 10 hardened yellow zinc washers, and 10 nylon lock nuts. Designed for\nuse in automotive repairs, trailer builds, agricultural equipment, shop\nmachinery, and structural assemblies, this product eliminates the need to\nsource parts separately—saving time while ensuring proper fit and performance.\nWhether you’re a professional mechanic, fabricator, or serious DIYer, this\nfastener kit delivers the confidence of industrial-grade hardware in a\nconvenient, ready-to-use package.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eComplete 10-packs: Includes 10 Grade 8 carriage bolts, 10 hardened 1\/2\" washers, 10 1\/2\"-13 nylon lock nuts. Bolts 1\/2\" diameter x 3-1\/2\" long. Plain Black finish on bolts and nuts, yellow zinc on washers.\u003c\/li\u003e\n \u003cli\u003eSmooth round head with square neck Features a domed, low-profile head and square shoulder that locks into wood or other materials to help prevent bolt rotation during tightening, allowing installation with a single wrench.\u003c\/li\u003e\n \u003cli\u003eGrade 8 Strength for Demanding Jobs: High-tensile SAE J429 Grade 8 bolts deliver superior load capacity and shear strength. Threads are made to the requirements of ASME B1.1. ASME B18.5 Dimensional Requirements. SAE J429 Material and Strength Level. ASTM F788 Surface Discontinuities. ASME B18.18 Inspection and Quality Assurance. Washers are hardened, compatible with Grade 8 systems. Nuts are Grade N8, compatible with Grade 8. Nylon resistant for up to 250 degrees F.\u003c\/li\u003e\n \u003cli\u003ePrecision-Matched Components: All fasteners are 1\/2\"-13 UNC for reliable fit and consistent clamping force across every assembly no mismatched hardware, no guesswork. Black finish on bolts and nuts, yellow zinc on washers.\u003c\/li\u003e\n \u003cli\u003eBuilt for Pros \u0026amp; Serious DIYers: Whether youre repairing equipment, building fixtures, or assembling heavy components, this kit delivers industrial-grade reliability in a compact, easy-to-store format.\u003c\/li\u003e\n \u003c\/ul\u003e"}