{"product_id":"value-collection-tci40870375-tension-control-bolt-7-8-9-a490","title":"Value Collection TCI40870375 Tension Control Bolt 7\/8-9 A490","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION TCI40870375 is a structural tension control bolt engineered for high-strength steel-to-steel connections in construction and industrial applications. This Grade A490 fastener features a 7\/8-9 UNC thread form and measures 3-3\/4 inches in length under the head, with a 1-5\/8 inch head diameter. The splined end design allows installation with a TC wrench that shears the spline at a calibrated torque, eliminating the need for manual torque verification. Each package includes a matching nut and washer. This item is sold in a 5-piece package. Licensed structural ironworkers and steel erectors are the primary installers of this bolt type on structural steel projects governed by AISC and RCSC specifications.\u003c\/p\u003e\u003cp\u003eTension control bolts of this configuration are used in structural steel framing for commercial and industrial buildings, bridges, and heavy equipment platforms. The 7\/8-9 thread size and A490 material grade suit connections requiring higher strength than standard A325 fasteners. The uncoated bright finish is standard for interior or protected structural environments. Each set includes the bolt, nut, and washer as required by ASTM F2280 installation standards.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade A490 high-strength steel construction meets ASTM A490 and ASTM F2280 standards\u003c\/li\u003e\n\u003cli\u003e7\/8-9 UNC thread size with 3-3\/4 inch length under head for deep structural connections\u003c\/li\u003e\n\u003cli\u003e1-5\/8 inch head diameter provides broad bearing surface on steel flanges\u003c\/li\u003e\n\u003cli\u003eIncludes matching nut and washer in each set for complete installation\u003c\/li\u003e\n\u003cli\u003eSplined end shears at rated installation torque, confirming proper pretension without manual checks\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish suitable for protected structural steel applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style structural fastener for use in steel-to-steel bolted connections where ASTM A490 or ASTM F2280 compliant tension control assemblies are specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation must be performed by qualified structural ironworkers using a calibrated TC wrench matched to the 7\/8-9 bolt diameter. Follow RCSC Specification for Structural Joints guidelines for pretensioned installation procedures. Verify that the mating steel surfaces are clean and free of mill scale, paint, or debris that could affect clamping force. Do not reuse tension control bolts once the spline has been sheared.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-9 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3-3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 1-5\/8 inches\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: A490\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright \/ Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standards\u003c\/strong\u003e: ASTM A490, ASTM F2280\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: Nut and Washer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5 pieces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound (per package)\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: TCI40870375\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51697392779570,"sku":"TCI40870375","price":83.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1b75b6197859d4b41498c68d6a8b30e4.jpg?v=1788351213","url":"https:\/\/voomisupply.com\/products\/value-collection-tci40870375-tension-control-bolt-7-8-9-a490","provider":"Voomi Supply","version":"1.0","type":"link"}