{"product_id":"holo-krome-78108-hex-socket-cap-screw-3-8-16-unc-ss","title":"Holo-krome 78108 Hex Socket Cap Screw 3\/8-16 Unc Ss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HOLO-KROME 78108 is a hex socket cap screw designed for precision fastening applications where high corrosion resistance and reliable clamping force are required. Sized at 3\/8-16 UNC with a 2.5-inch length under head, this screw is partially threaded, allowing shank engagement for shear-load applications. The 5\/16-inch hex drive socket accepts standard hex keys and T-handle drivers. Manufactured from 18-8 stainless steel with a bright, uncoated finish, it meets ASME B18.3 and ASTM F837 standards. Machinists, maintenance technicians, and mechanical contractors install this fastener in assemblies requiring stainless-grade corrosion resistance.\u003c\/p\u003e\u003cp\u003eThe 78108 is suited for industrial, commercial, and trade applications where a standard UNC thread pattern is specified. Partial threading makes it appropriate for through-bolting and applications requiring a smooth shank in the grip area. Common install environments include HVAC equipment frames, pump housings, structural brackets, and general mechanical assemblies. The 3\/8-16 UNC thread form is widely used across North American equipment platforms, making this screw a common replacement and maintenance item for service technicians across multiple trades.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3\/8-16 UNC thread size — standard coarse-thread form for broad compatibility\u003c\/li\u003e\n\u003cli\u003e2.5-inch length under head with partial threading for shank-bearing applications\u003c\/li\u003e\n\u003cli\u003e18-8 stainless steel construction for corrosion resistance in wet or harsh environments\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish — no plating to chip, flake, or affect thread tolerance\u003c\/li\u003e\n\u003cli\u003e5\/16-inch hex socket drive accepts standard hex keys and driver bits\u003c\/li\u003e\n\u003cli\u003eMeets ASME B18.3 and ASTM F837 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or maintenance fastener for equipment and assemblies specifying a 3\/8-16 UNC hex socket cap screw with a 2.5-inch length under head in stainless steel.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified technician using a calibrated hex key or socket driver sized to 5\/16 inches. De-energize and lock out any equipment before servicing fastened assemblies. Apply thread lubricant or anti-seize compound only if specified by the equipment manufacturer, as over-lubrication can affect torque-tension relationships on stainless fasteners. Stainless steel fasteners are susceptible to galling during installation — use slow, steady torque application and avoid power tools at full speed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex Socket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially Threaded\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: Bright \/ Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME B18.3 \/ ASTM F837\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HOLO-KROME\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 78108\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOLO-KROME","offers":[{"title":"Default Title","offer_id":51736606572850,"sku":"78108","price":2229.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0c9a2a0009891924a2ca223b5da382b3_464daac5-fa90-4731-b585-d6431e820945.jpg?v=1788778917","url":"https:\/\/voomisupply.com\/products\/holo-krome-78108-hex-socket-cap-screw-3-8-16-unc-ss","provider":"Voomi Supply","version":"1.0","type":"link"}