{"id":15863317823648,"title":"1\/2\"-13 x 3-1\/2\" Grade 8 Carriage Bolts (10-Pack) – Heavy-Duty Coarse Thread Bolts – Round Head Square Neck SAE J429 3.5\" Clear Zinc Trivalent Finish 1\/2\" x 3-1\/2\" Bolts Only 10","handle":"1-2-13-x-3-1-2-grade-8-carriage-bolts-10-pack-heavy-duty-coarse-thread-bolts-round-head-square-neck-sae-j429-3-5-clear-zinc-trivalent-finish-1-2-x-3-1-2-bolts-only-10","description":"\u003ch3\u003e1\/2\"-13 x 3-1\/2\" Grade 8 Carriage Bolts (10-Pack) – Heavy-Duty Coarse Thread Bolts – Round Head Square Neck SAE J429 3.5\" Clear Zinc Trivalent 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. Clear Zinc Trivalent finish. Each pack includes 10 Grade 8 carriage\nbolts. Designed for use in automotive repairs, trailer builds, agricultural\nequipment, shop machinery, and structural assemblies, this product eliminates\nthe need to source parts separately—saving time while ensuring proper fit and\nperformance. Whether you’re a professional mechanic, fabricator, or serious\nDIYer, this fastener kit delivers the confidence of industrial-grade hardware\nin 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 10-packs: Includes 10 Grade 8 carriage bolts. Bolts 1\/2\" diameter x 3-1\/2\" long.\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.\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. Clear Zinc Trivalent finish.\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":"2026-09-12T13:39:43+10:00","created_at":"2026-09-10T11:06:47+10:00","vendor":"Quantum Forge","type":"Carriage Bolts","tags":["heavy_industrial_Sep2026"],"price":29500,"price_min":29500,"price_max":29500,"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":58889251356832,"title":"10 \/ 1\/2\" x 3-1\/2\" Bolts Only","option1":"10","option2":"1\/2\" x 3-1\/2\" Bolts Only","option3":null,"sku":"B0H8TKTMRQ","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 – Round Head Square Neck SAE J429 3.5\" Clear Zinc Trivalent Finish 1\/2\" x 3-1\/2\" Bolts Only 10 - 10 \/ 1\/2\" x 3-1\/2\" Bolts Only","public_title":"10 \/ 1\/2\" x 3-1\/2\" Bolts Only","options":["10","1\/2\" x 3-1\/2\" Bolts Only"],"price":29500,"weight":960,"compare_at_price":null,"inventory_management":"shopify","barcode":"QFG37266-FBA","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/dingoship.com.au\/cdn\/shop\/files\/B0H8TKTMRQ.jpg?v=1789002409","\/\/dingoship.com.au\/cdn\/shop\/files\/318Gj_bDEDL.jpg?v=1789002409","\/\/dingoship.com.au\/cdn\/shop\/files\/41G5diJ-gKL.jpg?v=1789002409","\/\/dingoship.com.au\/cdn\/shop\/files\/31vbDDJUEnL.jpg?v=1789002409","\/\/dingoship.com.au\/cdn\/shop\/files\/21el0KEhLML.jpg?v=1789002409"],"featured_image":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0H8TKTMRQ.jpg?v=1789002409","options":["Number of Items","Size"],"media":[{"alt":null,"id":70278921060512,"position":1,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0H8TKTMRQ.jpg?v=1789002409"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0H8TKTMRQ.jpg?v=1789002409","width":500},{"alt":null,"id":70278921093280,"position":2,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/318Gj_bDEDL.jpg?v=1789002409"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/318Gj_bDEDL.jpg?v=1789002409","width":500},{"alt":null,"id":70278921126048,"position":3,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41G5diJ-gKL.jpg?v=1789002409"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41G5diJ-gKL.jpg?v=1789002409","width":500},{"alt":null,"id":70278921158816,"position":4,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31vbDDJUEnL.jpg?v=1789002409"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31vbDDJUEnL.jpg?v=1789002409","width":500},{"alt":null,"id":70278921191584,"position":5,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/21el0KEhLML.jpg?v=1789002409"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/21el0KEhLML.jpg?v=1789002409","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 – Round Head Square Neck SAE J429 3.5\" Clear Zinc Trivalent 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. Clear Zinc Trivalent finish. Each pack includes 10 Grade 8 carriage\nbolts. Designed for use in automotive repairs, trailer builds, agricultural\nequipment, shop machinery, and structural assemblies, this product eliminates\nthe need to source parts separately—saving time while ensuring proper fit and\nperformance. Whether you’re a professional mechanic, fabricator, or serious\nDIYer, this fastener kit delivers the confidence of industrial-grade hardware\nin 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 10-packs: Includes 10 Grade 8 carriage bolts. Bolts 1\/2\" diameter x 3-1\/2\" long.\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.\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. Clear Zinc Trivalent finish.\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"}