{"id":15863322607776,"title":"1\/2\"-13 x 8 Grade 5 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts – Round Head Square Neck SAE J429 Zinc Clear Finish Bolts Only 4","handle":"1-2-13-x-8-grade-5-carriage-bolts-4-pack-heavy-duty-coarse-thread-bolts-round-head-square-neck-sae-j429-zinc-clear-finish-bolts-only-4","description":"\u003ch3\u003e1\/2\"-13 x 8 Grade 5 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts – Round Head Square Neck SAE J429 Zinc Clear Finish\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThese 1\/2\"-13 x 8\" (ACTUAL LENGTH 7.875\") Grade 5 (G5) Carriage Bolts are\nengineered for applications where strength, reliability, and vibration\nresistance matter most. Zinc Clear Trivalent finish. Each pack includes 4\nGrade 5 carriage bolts. Designed for use in automotive repairs, trailer\nbuilds, agricultural equipment, shop machinery, and structural assemblies,\nthis product 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 5 carriage bolts. Bolts 1\/2\" diameter x 8\" long. (ACTUAL LENGTH 7-7\/8\") Zinc Clear Trivalent finish.\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 5 Strength for Demanding Jobs: High-tensile SAE J429 Grade 5 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 and ASTM A307 Material and Strength Level. ASTM F788 Surface Discontinuities. ASME B18.18 Inspection and Quality Assurance.\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":"2026-09-12T13:38:12+10:00","created_at":"2026-09-10T11:08:13+10:00","vendor":"Quantum Forge","type":"Carriage Bolts","tags":["heavy_industrial_Sep2026"],"price":27800,"price_min":27800,"price_max":27800,"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":58889256206496,"title":"4 \/ Bolts Only","option1":"4","option2":"Bolts Only","option3":null,"sku":"B0HC3ZH34P","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"1\/2\"-13 x 8 Grade 5 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts – Round Head Square Neck SAE J429 Zinc Clear Finish Bolts Only 4 - 4 \/ Bolts Only","public_title":"4 \/ Bolts Only","options":["4","Bolts Only"],"price":27800,"weight":822,"compare_at_price":null,"inventory_management":"shopify","barcode":"QFG37173-FBA","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/dingoship.com.au\/cdn\/shop\/files\/B0HC3ZH34P.jpg?v=1789002495","\/\/dingoship.com.au\/cdn\/shop\/files\/31kaEQzDOQL.jpg?v=1789002495","\/\/dingoship.com.au\/cdn\/shop\/files\/41BNE5Jqb4L.jpg?v=1789002496"],"featured_image":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0HC3ZH34P.jpg?v=1789002495","options":["Number of Items","Set name"],"media":[{"alt":null,"id":70278943146144,"position":1,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0HC3ZH34P.jpg?v=1789002495"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0HC3ZH34P.jpg?v=1789002495","width":500},{"alt":null,"id":70278943178912,"position":2,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31kaEQzDOQL.jpg?v=1789002495"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31kaEQzDOQL.jpg?v=1789002495","width":500},{"alt":null,"id":70278943211680,"position":3,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41BNE5Jqb4L.jpg?v=1789002496"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41BNE5Jqb4L.jpg?v=1789002496","width":500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003e1\/2\"-13 x 8 Grade 5 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts – Round Head Square Neck SAE J429 Zinc Clear Finish\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThese 1\/2\"-13 x 8\" (ACTUAL LENGTH 7.875\") Grade 5 (G5) Carriage Bolts are\nengineered for applications where strength, reliability, and vibration\nresistance matter most. Zinc Clear Trivalent finish. Each pack includes 4\nGrade 5 carriage bolts. Designed for use in automotive repairs, trailer\nbuilds, agricultural equipment, shop machinery, and structural assemblies,\nthis product 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 5 carriage bolts. Bolts 1\/2\" diameter x 8\" long. (ACTUAL LENGTH 7-7\/8\") Zinc Clear Trivalent finish.\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 5 Strength for Demanding Jobs: High-tensile SAE J429 Grade 5 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 and ASTM A307 Material and Strength Level. ASTM F788 Surface Discontinuities. ASME B18.18 Inspection and Quality Assurance.\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"}