Shop now and enjoy free shipping on all orders.

{"id":15863145496736,"title":"1\/2\"-13 x 6-1\/2\" Grade 5 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 6.5\" Plain Black Finish Bolts, Washers, Nuts 4","handle":"1-2-13-x-6-1-2-grade-5-carriage-bolts-4-pack-heavy-duty-coarse-thread-bolts-with-washers-and-nylon-lock-nuts-round-head-square-neck-sae-j429-6-5-plain-black-finish-bolts-washers-nuts-4","description":"\u003ch3\u003e1\/2\"-13 x 6-1\/2\" Grade 5 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 6.5\" Plain Black Finish\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThese 1\/2\"-13 x 6-1\/2\" (6.5\") long Grade 5 (G5) Carriage Bolts are engineered\nfor applications where strength, reliability, and vibration resistance matter\nmost. Plain Black finish. Each pack includes 4 Grade 5 carriage bolts, 4\nhardened SAE washers, and 4 Grade N8 nylon lock nuts. Bolts and nuts are Plain\nBlack finished. Washers are yellow zinc. Designed for use in automotive\nrepairs, trailer builds, agricultural equipment, shop machinery, and\nstructural assemblies, this product eliminates the need to source parts\nseparately—saving time while ensuring proper fit and performance. Whether\nyou’re a professional mechanic, fabricator, or serious DIYer, this fastener\nkit delivers the confidence of industrial-grade hardware in a convenient,\nready-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, 4 hardened SAE 1\/2\" washers, 4 Grade N8 nylon lock nuts. Bolts 1\/2\" diameter x 6-1\/2\" long. Bolts and nuts are Plain Black finished. Washers are yellow zinc.\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. 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. Washers are SAE and hardened, compatible with Grade 5 systems. Nuts are Grade N8, compatible with Grade 5. 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.\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":"2026-09-12T14:34:56+10:00","created_at":"2026-09-10T09:59:37+10:00","vendor":"Quantum Forge","type":"Carriage Bolts","tags":["heavy_industrial_Sep2026"],"price":29200,"price_min":29200,"price_max":29200,"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":58888863350944,"title":"4 \/ Bolts, Washers, Nuts","option1":"4","option2":"Bolts, Washers, Nuts","option3":null,"sku":"B0HCDBZKJ7","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"1\/2\"-13 x 6-1\/2\" Grade 5 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 6.5\" Plain Black Finish Bolts, Washers, Nuts 4 - 4 \/ Bolts, Washers, Nuts","public_title":"4 \/ Bolts, Washers, Nuts","options":["4","Bolts, Washers, Nuts"],"price":29200,"weight":822,"compare_at_price":null,"inventory_management":"shopify","barcode":"QFG37305-FBA","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/dingoship.com.au\/cdn\/shop\/files\/B0HCDBZKJ7.jpg?v=1788998379","\/\/dingoship.com.au\/cdn\/shop\/files\/41Sa_3-AmZL.jpg?v=1788998379","\/\/dingoship.com.au\/cdn\/shop\/files\/31FcQy2ubtL.jpg?v=1788998379","\/\/dingoship.com.au\/cdn\/shop\/files\/41pLlWQTcsL.jpg?v=1788998379","\/\/dingoship.com.au\/cdn\/shop\/files\/31JB1DoUdML.jpg?v=1788998379","\/\/dingoship.com.au\/cdn\/shop\/files\/31lNOjUcPfL.jpg?v=1788998380","\/\/dingoship.com.au\/cdn\/shop\/files\/41WmxRJtmoL.jpg?v=1788998379"],"featured_image":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0HCDBZKJ7.jpg?v=1788998379","options":["Number of Items","Set name"],"media":[{"alt":null,"id":70277855346848,"position":1,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0HCDBZKJ7.jpg?v=1788998379"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/B0HCDBZKJ7.jpg?v=1788998379","width":500},{"alt":null,"id":70277855379616,"position":2,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41Sa_3-AmZL.jpg?v=1788998379"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41Sa_3-AmZL.jpg?v=1788998379","width":500},{"alt":null,"id":70277855412384,"position":3,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31FcQy2ubtL.jpg?v=1788998379"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31FcQy2ubtL.jpg?v=1788998379","width":500},{"alt":null,"id":70277855445152,"position":4,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41pLlWQTcsL.jpg?v=1788998379"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41pLlWQTcsL.jpg?v=1788998379","width":500},{"alt":null,"id":70277855477920,"position":5,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31JB1DoUdML.jpg?v=1788998379"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31JB1DoUdML.jpg?v=1788998379","width":500},{"alt":null,"id":70277855510688,"position":6,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31lNOjUcPfL.jpg?v=1788998380"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/31lNOjUcPfL.jpg?v=1788998380","width":500},{"alt":null,"id":70277855543456,"position":7,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41WmxRJtmoL.jpg?v=1788998379"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/dingoship.com.au\/cdn\/shop\/files\/41WmxRJtmoL.jpg?v=1788998379","width":500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003e1\/2\"-13 x 6-1\/2\" Grade 5 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 6.5\" Plain Black Finish\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThese 1\/2\"-13 x 6-1\/2\" (6.5\") long Grade 5 (G5) Carriage Bolts are engineered\nfor applications where strength, reliability, and vibration resistance matter\nmost. Plain Black finish. Each pack includes 4 Grade 5 carriage bolts, 4\nhardened SAE washers, and 4 Grade N8 nylon lock nuts. Bolts and nuts are Plain\nBlack finished. Washers are yellow zinc. Designed for use in automotive\nrepairs, trailer builds, agricultural equipment, shop machinery, and\nstructural assemblies, this product eliminates the need to source parts\nseparately—saving time while ensuring proper fit and performance. Whether\nyou’re a professional mechanic, fabricator, or serious DIYer, this fastener\nkit delivers the confidence of industrial-grade hardware in a convenient,\nready-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, 4 hardened SAE 1\/2\" washers, 4 Grade N8 nylon lock nuts. Bolts 1\/2\" diameter x 6-1\/2\" long. Bolts and nuts are Plain Black finished. Washers are yellow zinc.\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. 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. Washers are SAE and hardened, compatible with Grade 5 systems. Nuts are Grade N8, compatible with Grade 5. 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.\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"}

1/2"-13 x 6-1/2" Grade 5 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 6.5" Plain Black Finish Bolts, Washers, Nuts 4

In Stock. Leaves warehouse within 2 - 3 business days

292.00 AUD
Maximum quantity available reached.
Free Shipping Australia Wide
100% Safe & Secure Checkout
100 Days Return Policy *
1 Year Warranty *

1/2"-13 x 6-1/2" Grade 5 Carriage Bolts (4-Pack) – Heavy-Duty Coarse Thread Bolts with Washers and Nylon Lock Nuts – Round Head Square Neck SAE J429 6.5" Plain Black Finish

These 1/2"-13 x 6-1/2" (6.5") long Grade 5 (G5) Carriage Bolts are engineered for applications where strength, reliability, and vibration resistance matter most. Plain Black finish. Each pack includes 4 Grade 5 carriage bolts, 4 hardened SAE washers, and 4 Grade N8 nylon lock nuts. Bolts and nuts are Plain Black finished. Washers are yellow zinc. Designed for use in automotive repairs, trailer builds, agricultural equipment, shop machinery, and structural assemblies, this product eliminates the need to source parts separately—saving time while ensuring proper fit and performance. Whether you’re a professional mechanic, fabricator, or serious DIYer, this fastener kit delivers the confidence of industrial-grade hardware in a convenient, ready-to-use package.

Product Features

  • Complete 4-packs: Includes 4 Grade 5 carriage bolts, 4 hardened SAE 1/2" washers, 4 Grade N8 nylon lock nuts. Bolts 1/2" diameter x 6-1/2" long. Bolts and nuts are Plain Black finished. Washers are yellow zinc.
  • Smooth 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.
  • Grade 5 Strength for Demanding Jobs: High-tensile SAE J429 Grade 5 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 and ASTM A307 Material and Strength Level. ASTM F788 Surface Discontinuities. ASME B18.18 Inspection and Quality Assurance. Washers are SAE and hardened, compatible with Grade 5 systems. Nuts are Grade N8, compatible with Grade 5. Nylon resistant for up to 250 degrees F.
  • Precision-Matched Components: All fasteners are 1/2"-13 UNC for reliable fit and consistent clamping force across every assembly no mismatched hardware, no guesswork.
  • Built for Pros & 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.