{"product_id":"value-collection-st3-8-16x3-4-self-sealing-hex-bolt","title":"Value Collection ST3\/8-16X3\/4 Self Sealing Hex Bolt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ST3\/8-16X3\/4 is a self sealing hex bolt designed for applications where a leak-proof fastened joint is required. The bolt features a 3\/8-16 UNC thread and a 3\/4-inch length under the head. It is manufactured from 18-8 stainless steel and passivated to maximize corrosion resistance. A captive silicone O-ring beneath the head compresses against the mating surface when torqued, creating a reliable fluid or gas seal without a separate gasket. This fastener is appropriate for plumbing, HVAC, and mechanical assemblies where moisture exposure or sealing integrity is a service concern.\u003c\/p\u003e\n\u003cp\u003eThis hex bolt is suited for residential and commercial installations where standard fasteners would allow fluid ingress or leakage at the bolt head. Common applications include mounting flanges, access panels, enclosures, and fluid system components that require both structural fastening and a head-level seal. The passivated 18-8 stainless steel construction makes it a reliable choice in wet, corrosive, or outdoor environments. Sold in a package quantity of 5.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCaptive silicone O-ring provides an integral head seal, eliminating the need for a separate gasket\u003c\/li\u003e\n  \u003cli\u003e18-8 stainless steel construction with passivation finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e3\/8-16 UNC thread for compatibility with standard inch-series tapped holes and nuts\u003c\/li\u003e\n  \u003cli\u003e3\/4-inch length under head suits shallow to medium engagement applications\u003c\/li\u003e\n  \u003cli\u003eHex drive accepts standard hex wrenches and sockets for straightforward installation\u003c\/li\u003e\n  \u003cli\u003eSold in packs of 5 with a minimum order quantity of 1 pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit self sealing fastener for any application requiring a 3\/8-16 UNC threaded bolt with a head-level O-ring seal, including flanged joints, enclosures, and fluid system mounting points in HVAC, plumbing, and general mechanical assemblies.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a licensed plumber, HVAC technician, or qualified mechanical tradesperson depending on the system. Shut off and depressurize any fluid or gas system before removing or installing sealing fasteners. Ensure the mating surface is clean and flat so the silicone O-ring seats evenly and compresses uniformly. Do not overtighten, as excessive torque can deform the O-ring and compromise the seal.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\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\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 18-8 Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Passivated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeal Type\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: 0.18 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: ST3\/8-16X3\/4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51700749140274,"sku":"ST3\/8-16X3\/4","price":45.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7ade68a4c73aa075976d38581bf68465_9a38d774-6044-41c6-a9c2-241d34a9f136.jpg?v=1788394750","url":"https:\/\/voomisupply.com\/products\/value-collection-st3-8-16x3-4-self-sealing-hex-bolt","provider":"Voomi Supply","version":"1.0","type":"link"}