{"product_id":"value-collection-33603-hex-socket-cap-screw-1-4-20-unc","title":"Value Collection 33603 Hex Socket Cap Screw 1\/4-20 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 33603 is a hex socket cap screw designed for secure fastening in mechanical assemblies, structural connections, and equipment maintenance applications. Threaded 1\/4-20 UNC and fully threaded along its 7\/8-inch length under head, this fastener delivers consistent clamping force across its entire shaft. It is driven with a 3\/16-inch hex key. Constructed from alloy steel with a black oxide finish coating, it offers improved corrosion resistance compared to uncoated steel and is suited for controlled-environment industrial and commercial use. Machinists, millwrights, and maintenance technicians working on HVAC equipment, pump assemblies, and general mechanical systems reach for this fastener class regularly.\u003c\/p\u003e\n\u003cp\u003eThis screw is appropriate for both original installation and replacement fastening in residential and commercial mechanical systems. Its 1\/4-20 UNC thread form is one of the most common coarse-thread standards in North American equipment manufacturing, making it a frequent replacement choice in HVAC unit assembly, motor mounting, panel attachment, and similar trade-service scenarios. Fully threaded construction makes it well suited to thin-material clamping and through-bolt applications where thread engagement along the full shaft length is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-20 UNC coarse thread for broad compatibility with standard tapped holes\u003c\/li\u003e\n  \u003cli\u003eFully threaded 7\/8-inch length under head maximizes thread engagement\u003c\/li\u003e\n  \u003cli\u003e3\/16-inch hex socket drive for use with standard Allen keys or hex drivers\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction provides high tensile strength\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish coating reduces surface corrosion in low-moisture environments\u003c\/li\u003e\n  \u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM A574 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 1\/4-20 UNC hex socket cap screw suitable for any tapped hole or nut conforming to the 1\/4-20 UNC thread standard in mechanical, HVAC, plumbing, and general industrial assemblies.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed with a 3\/16-inch hex key or Allen-head bit driver. Always de-energize and lock out any equipment before replacing or tightening fasteners on live mechanical assemblies. Verify thread condition in the receiving hole before installation to avoid cross-threading. Follow applicable equipment manufacturer torque guidelines and relevant codes such as ASME standards for fastener applications.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Fully Threaded\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: 3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3 and ASTM A574\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\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: 33603\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51694622179634,"sku":"33603","price":18.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/55b5ceaefa3bee67bf21bf933f7b9728.jpg?v=1788326433","url":"https:\/\/voomisupply.com\/products\/value-collection-33603-hex-socket-cap-screw-1-4-20-unc","provider":"Voomi Supply","version":"1.0","type":"link"}