{"product_id":"holo-krome-76537-hex-socket-cap-screw-m20-x-2-50-140mm","title":"Holo-krome 76537 Hex Socket Cap Screw M20 X 2.50 140mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HOLO-KROME 76537 is a metric hex socket cap screw designed for high-strength fastening applications in industrial and mechanical assemblies. Manufactured from grade 12.9 alloy steel with a black oxide coating, this fastener delivers exceptional tensile strength and moderate corrosion resistance. The M20 x 2.50 thread profile with a 140 mm length under head and partial threading makes it well suited for through-bolt and tapped-hole configurations where precise clamping load is required. Licensed tradespeople and mechanical assemblers working on heavy equipment, structural fixtures, and machine frames rely on this grade for critical joint integrity.\u003c\/p\u003e\n\u003cp\u003eThis screw is used in commercial and industrial settings where high-grade metric fasteners are specified by engineering drawings or OEM service documentation. Partial threading allows the unthreaded shank to bear shear loads while the threaded section engages the tapped bore. Typical applications include machinery frames, hydraulic component mounting, structural steel fabrication, and precision equipment assembly. It conforms to ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 standards, making it interchangeable with internationally specified fasteners of the same class.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 12.9 alloy steel construction for maximum tensile and proof load ratings\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance and reduces light reflection in service environments\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank supports combined shear and tensile loading\u003c\/li\u003e\n  \u003cli\u003eHex socket drive (internal hex) for high-torque installation with Allen or hex bit tools\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 fastener standards\u003c\/li\u003e\n  \u003cli\u003eM20 x 2.50 thread size suitable for heavy-duty mechanical and structural assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard metric replacement or service fastener compatible with any tapped bore or nut conforming to M20 x 2.50 thread geometry per ISO and DIN metric specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires an appropriately sized hex key or socket bit; always use calibrated torque tooling when tightening grade 12.9 fasteners to engineered joint specifications. De-energize and lock out all machinery before fastener removal or replacement in live assemblies. Do not substitute a lower-grade fastener in a joint designed for grade 12.9  -  doing so can result in joint failure under load. Apply thread lubricant only when specified by the engineering document, as lubricant changes the torque-to-clamp-force relationship.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M20 x 2.50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 140 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex Socket (Internal Hex)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 12.9\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standards\u003c\/strong\u003e: ANSI B1.13M, DIN 912, ISO 4762, ISO 898-1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\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: HOLO-KROME\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 76537\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOLO-KROME","offers":[{"title":"Default Title","offer_id":51740505997618,"sku":"76537","price":46.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e2816fc3ea1a0de3ebbded6c00312548_9d28f5f3-0243-4509-93df-469c2b3ef3ef.jpg?v=1788825493","url":"https:\/\/voomisupply.com\/products\/holo-krome-76537-hex-socket-cap-screw-m20-x-2-50-140mm","provider":"Voomi Supply","version":"1.0","type":"link"}