{"product_id":"value-collection-st5-16-18x3-hex-bolt-5-16-18-unc-3in-ss","title":"Value Collection ST5\/16-18X3 Hex Bolt 5\/16-18 Unc 3in Ss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ST5\/16-18X3 is a self sealing hex bolt designed for fastening applications that require a secure, leak-resistant connection. Constructed from 18-8 stainless steel and passivated for enhanced corrosion resistance, this bolt features a silicone O-ring under the head that compresses during installation to form a seal against moisture and fluid ingress. The 5\/16-18 UNC thread pattern and 3-inch length under head make it suitable for moderate-depth through-fastening in metal, plastic, or composite assemblies. Each package contains 5 bolts. Typically installed by mechanical contractors, maintenance technicians, or plumbers working on fluid-handling enclosures, equipment housings, and panel covers.\u003c\/p\u003e\n\u003cp\u003eThis bolt is well suited for use in residential and light commercial applications where standard hex bolts would allow moisture infiltration at the fastener point. Common install scenarios include pump housings, HVAC equipment panels, outdoor enclosures, and any assembly exposed to water, condensate, or wash-down conditions. The silicone O-ring seals the fastener penetration without the need for additional thread sealant or gasket material at the bolt location. Sold in a pack of 5, making it practical for small repairs or low-volume service work requiring only a few fasteners.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e18-8 stainless steel construction with passivated finish for corrosion resistance in wet or outdoor environments\u003c\/li\u003e\n  \u003cli\u003eIntegrated silicone O-ring under the head provides a self sealing barrier against moisture and fluid ingress\u003c\/li\u003e\n  \u003cli\u003e5\/16-18 UNC thread standard for broad compatibility with inch-series tapped holes and standard hardware\u003c\/li\u003e\n  \u003cli\u003e3-inch length under head accommodates moderate material stack-ups\u003c\/li\u003e\n  \u003cli\u003eHex drive head accepts standard hex wrenches and sockets\u003c\/li\u003e\n  \u003cli\u003ePack of 5 bolts per package, with a minimum order quantity of 1 package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or service fastener for any application requiring a 5\/16-18 UNC self sealing hex bolt with a 3-inch length under head in 18-8 stainless steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a standard hex wrench or socket sized for the bolt head. Power down or depressurize any system before removing or replacing fasteners on equipment panels or fluid-handling assemblies. Do not overtighten, as excessive torque can deform or extrude the silicone O-ring and compromise the seal. Ensure the mating surface is clean and flat so the O-ring seats evenly on installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18\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: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 18-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Passivated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSealing Element\u003c\/strong\u003e: Silicone O-Ring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161600\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: ST5\/16-18X3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51693867368754,"sku":"ST5\/16-18X3","price":100.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7ade68a4c73aa075976d38581bf68465_cabf8321-2195-4133-88f1-911fa3d032e2.jpg?v=1788318291","url":"https:\/\/voomisupply.com\/products\/value-collection-st5-16-18x3-hex-bolt-5-16-18-unc-3in-ss","provider":"Voomi Supply","version":"1.0","type":"link"}