{"product_id":"value-collection-49131-hex-head-cap-screw-b7-steel-astm-a193","title":"Value Collection 49131 Hex Head Cap Screw B7 Steel Astm A193","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 49131 is a hex head cap screw sized 1-8 x 2-1\/4 inches, manufactured from Grade B7 alloy steel with a bright, uncoated finish. It meets ASTM A193 standards, which specify high-strength fasteners used in pressure vessels, valves, flanges, and fittings. The thread standard is UNC (Unified National Coarse), and the length measurement is taken from under the head. This fastener is used by pipefitters, millwrights, plumbers, and mechanical contractors in bolted flange assemblies and structural connections where elevated strength requirements apply.\u003c\/p\u003e\u003cp\u003eThis screw is suited for industrial and commercial applications requiring ASTM A193 compliance. Grade B7 fasteners are commonly specified in high-pressure and high-temperature piping systems, heat exchangers, and pressure vessel assemblies. The uncoated finish is typical where base material strength is the primary requirement and no additional corrosion protection is specified by the application. Package quantity is 5 pieces per order.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade B7 alloy steel construction meets ASTM A193 specification for high-strength bolting\u003c\/li\u003e\n\u003cli\u003eUNC thread standard for broad compatibility with standard inch-series nuts and tapped holes\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish — no additional coating that could affect dimensional tolerances\u003c\/li\u003e\n\u003cli\u003eLength measured from under the head: 2-1\/4 inches\u003c\/li\u003e\n\u003cli\u003eThread size 1-8 for large-diameter bolted connections\u003c\/li\u003e\n\u003cli\u003eSold in packs of 5 pieces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an ASTM A193 Grade B7 compliant hex head cap screw for use in standard inch-series UNC bolted assemblies in industrial piping, pressure vessel, and mechanical applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by qualified pipefitters, millwrights, or mechanical technicians familiar with ASTM A193 bolting requirements. Always power down or depressurize the system before disassembling or assembling bolted flange connections. Follow applicable codes such as ASME B31.3 or relevant piping and pressure vessel standards for torque sequencing and assembly procedures. Use appropriate calibrated tooling; do not substitute with undersized wrenches that may round the hex head.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 2-1\/4 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: B7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASTM A193\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5 pieces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\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: 49131\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51716957077810,"sku":"49131","price":80.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c705579720be2024f3514cb7a8a061f6.jpg?v=1788534016","url":"https:\/\/voomisupply.com\/products\/value-collection-49131-hex-head-cap-screw-b7-steel-astm-a193","provider":"Voomi Supply","version":"1.0","type":"link"}