{"product_id":"value-collection-d39498-hex-head-cap-screw-7-8-14x3-grade-8","title":"Value Collection D39498 Hex Head Cap Screw 7\/8-14x3 Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION D39498 is a 7\/8-14 hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assembly work. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers superior tensile strength and corrosion resistance compared to lower-grade hardware. The screw measures 3 inches under the head with partial threading and a 7\/8-14 UNF thread form. It conforms to ASME B18.2.1 and SAE J429 standards, making it a code-compliant choice for demanding fastener applications.\u003c\/p\u003e\u003cp\u003eThis hex head cap screw is suited for heavy-duty mechanical assemblies, equipment mounting, and structural connections where Grade 8 strength is specified. Partially threaded shanks are common in applications requiring a bearing surface or where clamp load distribution across unthreaded sections is needed. Trades such as millwrights, pipefitters, and industrial maintenance technicians regularly install Grade 8 cap screws in machinery, brackets, flanges, and structural steel connections. The zinc yellow dichromate finish provides a layer of corrosion protection appropriate for general indoor and light industrial environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade 8 steel construction for high tensile and proof load strength\u003c\/li\u003e\n\u003cli\u003e7\/8-14 UNF thread form for fine-thread engagement and vibration resistance\u003c\/li\u003e\n\u003cli\u003e3-inch length under head with partial threading for bearing-surface applications\u003c\/li\u003e\n\u003cli\u003eZinc yellow dichromate finish for corrosion resistance in light industrial use\u003c\/li\u003e\n\u003cli\u003eMeets ASME B18.2.1 and SAE J429 dimensional and mechanical standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard Grade 8 hex head cap screw for use in any application specifying a 7\/8-14 UNF partially threaded fastener per ASME B18.2.1 and SAE J429.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by qualified mechanical or maintenance technicians familiar with fastener torque specifications for Grade 8 hardware. Always consult applicable torque tables or engineering specifications for the specific joint being assembled. Inspect threads on both the screw and mating nut or tapped hole before installation to ensure clean engagement. Follow relevant codes and assembly standards for the equipment or structure being serviced.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\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: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Zinc Yellow Dichromate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ASME B18.2.1, SAE J429\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\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: D39498\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51706704003378,"sku":"D39498","price":79.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cff85c0abe8e60b7b35e1779f2f904e3.jpg?v=1788436199","url":"https:\/\/voomisupply.com\/products\/value-collection-d39498-hex-head-cap-screw-7-8-14x3-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}