{"id":15863089954976,"title":"1\/2\"-13 x 5-1\/2\" Grade 8 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 5.50\" Clear Zinc Trivalent Finish Bolts, Washers, Nuts 4","handle":"1-2-13-x-5-1-2-grade-8-carriage-bolts-4-pack-heavy-duty-coarse-thread-bolts-with-washers-and-nylon-lock-nuts-round-head-square-neck-sae-j429-5-50-clear-zinc-trivalent-finish-bolts-washers-nuts-4","description":"\u003ch3\u003e1\/2\"-13 x 5-1\/2\" Grade 8 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 5.50\" Clear Zinc Trivalent Finish\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThese 1\/2\"-13 x 5-1\/2\" (5.50\") long Grade 8 (G8) Carriage Bolts are engineered\nfor applications where strength, reliability, and vibration resistance matter\nmost. Each pack includes 4 Grade 8 carriage bolts, 4 hardened washers, 4 Grade\nN8 nylon lock nuts. Bolts are clear zinc finished and washers and nuts are\nyellow zinc finished. Designed for use in automotive repairs, trailer builds,\nagricultural equipment, shop machinery, and structural assemblies, this\nproduct eliminates the need to source parts separately—saving time while\nensuring proper fit and performance. Whether you’re a professional mechanic,\nfabricator, or serious DIYer, this fastener kit delivers the confidence of\nindustrial-grade hardware in a convenient, ready-to-use package.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eComplete 4-packs: Includes 4 Grade 8 carriage bolts. Bolts 1\/2\" diameter x 5-1\/2\" long. Each pack includes 4 Grade 8 carriage bolts, 4 hardened washers, 4 Grade N8 nylon lock nuts. Bolts are clear zinc finished and washers and nuts are yellow zinc finished.\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, making this ideal for automotive, trailer, machinery, and structural applications. 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 SAE and hardened, and nylon lock nuts are grade N8. Nylon rated 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.\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":"2026-09-12T14:56:30+10:00","created_at":"2026-09-10T09:35:33+10:00","vendor":"Quantum Forge","type":"Carriage Bolts","tags":["heavy_industrial_Sep2026"],"price":28000,"price_min":28000,"price_max":28000,"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":58888782348448,"title":"4 \/ Bolts, Washers, Nuts","option1":"4","option2":"Bolts, Washers, Nuts","option3":null,"sku":"B0HCDTT6PZ","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"1\/2\"-13 x 5-1\/2\" Grade 8 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 5.50\" Clear Zinc Trivalent Finish Bolts, Washers, Nuts 4 - 4 \/ Bolts, Washers, Nuts","public_title":"4 \/ Bolts, Washers, Nuts","options":["4","Bolts, Washers, Nuts"],"price":28000,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"QFG37306-FBA","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/dingoship.com.au\/cdn\/shop\/files\/B0HCDTT6PZ.jpg?v=1788996937","\/\/dingoship.com.au\/cdn\/shop\/files\/411UlieG06L.jpg?v=1788996935","\/\/dingoship.com.au\/cdn\/shop\/files\/31ACzGDvMoL.jpg?v=1788996935","\/\/dingoship.com.au\/cdn\/shop\/files\/41-k0e_ly0L.jpg?v=1788996935","\/\/dingoship.com.au\/cdn\/shop\/files\/3127nZ7mZ4L.jpg?v=1788996935","\/\/dingoship.com.au\/cdn\/shop\/files\/41xAMRA2imL.jpg?v=1788996936"],"featured_image":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0HCDTT6PZ.jpg?v=1788996937","options":["Number of Items","Set name"],"media":[{"alt":null,"id":70277501845664,"position":1,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0HCDTT6PZ.jpg?v=1788996937"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0HCDTT6PZ.jpg?v=1788996937","width":500},{"alt":null,"id":70277501878432,"position":2,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/411UlieG06L.jpg?v=1788996935"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/411UlieG06L.jpg?v=1788996935","width":500},{"alt":null,"id":70277501911200,"position":3,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31ACzGDvMoL.jpg?v=1788996935"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31ACzGDvMoL.jpg?v=1788996935","width":500},{"alt":null,"id":70277501943968,"position":4,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41-k0e_ly0L.jpg?v=1788996935"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41-k0e_ly0L.jpg?v=1788996935","width":500},{"alt":null,"id":70277501976736,"position":5,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/3127nZ7mZ4L.jpg?v=1788996935"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/3127nZ7mZ4L.jpg?v=1788996935","width":500},{"alt":null,"id":70277502009504,"position":6,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41xAMRA2imL.jpg?v=1788996936"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41xAMRA2imL.jpg?v=1788996936","width":500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003e1\/2\"-13 x 5-1\/2\" Grade 8 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 5.50\" Clear Zinc Trivalent Finish\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThese 1\/2\"-13 x 5-1\/2\" (5.50\") long Grade 8 (G8) Carriage Bolts are engineered\nfor applications where strength, reliability, and vibration resistance matter\nmost. Each pack includes 4 Grade 8 carriage bolts, 4 hardened washers, 4 Grade\nN8 nylon lock nuts. Bolts are clear zinc finished and washers and nuts are\nyellow zinc finished. Designed for use in automotive repairs, trailer builds,\nagricultural equipment, shop machinery, and structural assemblies, this\nproduct eliminates the need to source parts separately—saving time while\nensuring proper fit and performance. Whether you’re a professional mechanic,\nfabricator, or serious DIYer, this fastener kit delivers the confidence of\nindustrial-grade hardware in a convenient, ready-to-use package.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eComplete 4-packs: Includes 4 Grade 8 carriage bolts. Bolts 1\/2\" diameter x 5-1\/2\" long. Each pack includes 4 Grade 8 carriage bolts, 4 hardened washers, 4 Grade N8 nylon lock nuts. Bolts are clear zinc finished and washers and nuts are yellow zinc finished.\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, making this ideal for automotive, trailer, machinery, and structural applications. 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 SAE and hardened, and nylon lock nuts are grade N8. Nylon rated 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.\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"}