{"product_id":"value-collection-hci31000400n-005bx-hex-head-bolt-a325","title":"Value Collection HCI31000400N-005BX Hex Head Bolt A325","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION HCI31000400N-005BX is a heavy hex head bolt designed for structural and industrial fastening applications. This fastener measures 4 inches in length under the head and carries an ASTM A325 structural steel designation, making it suitable for high-strength bolted connections. The shank is partially threaded with a 1-8 UNC thread form — coarse-thread series in the inch system — and the finish is bright uncoated steel. Structural ironworkers, millwrights, and general contractors specify A325-grade hardware where load-bearing joint integrity is a primary requirement.\u003c\/p\u003e\n\u003cp\u003eThis bolt is used in steel-to-steel structural connections including beam-to-column joints, base plate assemblies, and heavy equipment mounting applications. The coarse 1-8 UNC thread pitch is well-suited for assembly in field conditions where speed of installation and resistance to cross-threading matter. Partial threading leaves a smooth shank section in the grip length of the joint, which is standard practice for shear-loaded structural bolted connections. Sold individually.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eASTM A325 structural steel grade for high-strength bolted connections\u003c\/li\u003e\n  \u003cli\u003e1-8 UNC coarse thread series in the inch measurement system\u003c\/li\u003e\n  \u003cli\u003e4-inch length under head with partial threading for proper grip-length shank\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish — no coating buildup to affect thread fit or torque values\u003c\/li\u003e\n  \u003cli\u003eHex head drive accepts standard structural wrenching tools and impact sockets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard ASTM A325 structural hex bolt for use with compatible heavy hex nuts and hardened washers per ASTM F436 in steel structural assemblies requiring 1-8 UNC coarse-thread fasteners.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation of ASTM A325 structural bolts should be performed by qualified ironworkers or structural mechanics in accordance with AISC and RCSC bolt installation specifications. Always power down or de-energize adjacent systems before working in proximity to energized equipment. Use calibrated torque wrenches or tension-control tooling as required by the applicable structural specification — do not substitute general-purpose impact tools without verifying that the required bolt pretension is achieved. Inspect threads and mating nut prior to installation to confirm clean engagement.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull or Partial Threading\u003c\/strong\u003e: Partially Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: A325\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASTM A325\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright \/ Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: HCI31000400N-005BX\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51714352546098,"sku":"HCI31000400N-005BX","price":15.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6ef15ab05ce71291cebae789e076348e.jpg?v=1788500054","url":"https:\/\/voomisupply.com\/products\/value-collection-hci31000400n-005bx-hex-head-bolt-a325","provider":"Voomi Supply","version":"1.0","type":"link"}