{"product_id":"value-collection-49183-hex-head-cap-screw-grade-b7-steel","title":"Value Collection 49183 Hex Head Cap Screw Grade B7 Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 49183 is a heavy hex head cap screw designed for high-strength bolting applications where reliable clamping force and material integrity are critical. Manufactured from Grade B7 alloy steel and left uncoated, this fastener meets ASTM A193 standards, making it suitable for use in high-temperature and high-pressure environments such as pressure vessels, flanged pipe connections, and industrial equipment assemblies. The thread size is 1-1\/4-8 UNC with a length under head of 5-1\/2 inches. Installation is performed by millwrights, pipefitters, and mechanical contractors working on bolted flange assemblies and structural connections.\u003c\/p\u003e\u003cp\u003eThis cap screw is commonly used in industrial and commercial applications including petrochemical piping systems, pressure vessel flange bolting, pump and valve assemblies, and heavy mechanical equipment installations. The ASTM A193 Grade B7 designation indicates the fastener is engineered for elevated-temperature service and is a recognized standard in process piping and pressure boundary work governed by ASME and ANSI codes. The uncoated finish makes it compatible with field-applied lubricants or thread compounds as required by the application specification.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eASTM A193 Grade B7 alloy steel construction for high-temperature and high-pressure bolting service\u003c\/li\u003e\n\u003cli\u003e1-1\/4-8 UNC thread form for broad compatibility with standard heavy hex nuts\u003c\/li\u003e\n\u003cli\u003e5-1\/2 inch length under head accommodates thick flange and structural assemblies\u003c\/li\u003e\n\u003cli\u003eUncoated finish allows field application of anti-seize compound or specified thread lubricant\u003c\/li\u003e\n\u003cli\u003eSold in a package quantity of 5, with no minimum order beyond 1 package\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard ASTM A193 Grade B7 alloy steel hex head cap screw for use with matching heavy hex nuts in UNC 1-1\/4-8 thread configurations across industrial bolted flange and pressure vessel assemblies.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by qualified millwrights, pipefitters, or mechanical technicians following applicable ASME, ANSI, or plant-specific bolting procedures. Depressurize and isolate the system completely before disassembly or fastener replacement on any pressure boundary connection. Use calibrated torque tooling and apply only the thread lubricant or anti-seize compound specified by the engineering or maintenance procedure for the assembly. Do not substitute Grade B7 fasteners with lower-grade hardware in pressure-rated or elevated-temperature service without engineering approval.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-1\/4-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 5-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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: Grade B7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASTM A193\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 49183\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51714251981106,"sku":"49183","price":196.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1b26368cfc51c8fbc16b0b9201efef56.jpg?v=1788498260","url":"https:\/\/voomisupply.com\/products\/value-collection-49183-hex-head-cap-screw-grade-b7-steel","provider":"Voomi Supply","version":"1.0","type":"link"}