{"product_id":"jergens-40702-tapped-bar-knob-2in-dia-1-2in-thread","title":"Jergens 40702 Tapped Bar Knob 2in Dia 1\/2in Thread","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe JERGENS 40702 is a tapped bar knob designed for use in manual clamping, fixturing, and machine tool applications where a positive hand grip is required. The knob measures 2 inches in diameter and stands 2-1\/8 inches high, with a 1\/2 inch tapped thread for direct bolt or stud mounting. The hub diameter is 1-1\/8 inches and the projection from centerline to nose end is 1-1\/4 inches. Constructed from ASTM 32510 malleable iron, it delivers the durability needed in production shop environments. This style of bar knob is typically installed by machinists, toolmakers, or maintenance technicians on jigs, fixtures, and clamping setups.\u003c\/p\u003e\u003cp\u003eThe JERGENS 40702 is suited for use on machine tool fixtures, drill press tables, milling fixtures, and general workholding equipment in both production and maintenance shop environments. Its tapped-through design allows mounting directly onto a threaded stud or cap screw. The 1\/2 inch thread size fits a common fastener standard, making it straightforward to source mating hardware. The bar knob profile provides a natural grip point for operators applying consistent hand torque during setup or adjustment cycles.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e2 inches overall diameter for a secure, full-hand grip\u003c\/li\u003e\n\u003cli\u003e1\/2 inch tapped thread for direct stud or bolt mounting\u003c\/li\u003e\n\u003cli\u003e1-1\/4 inches projection from gage line to nose end\u003c\/li\u003e\n\u003cli\u003e1-1\/8 inches hub diameter for structural rigidity at the mounting point\u003c\/li\u003e\n\u003cli\u003eASTM 32510 malleable iron construction for impact and wear resistance\u003c\/li\u003e\n\u003cli\u003eProng height of 3\/4 inches with 1\/2 inch prong diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard tapped bar knob for use on jigs, fixtures, and workholding equipment that accept a 1\/2 inch threaded stud or fastener. Verify thread pitch and stud length before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by threading the knob directly onto a compatible stud or cap screw by hand or with light tool assistance. Always ensure the mating fastener thread pitch matches the tapped insert before applying load. Inspect the tapped bore for debris or damage before mounting. No special tools or codes are required for standard fixture assembly, but follow your facility safety procedures when working on powered machinery.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Diameter\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Height\u003c\/strong\u003e: 2-1\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub Diameter\u003c\/strong\u003e: 1-1\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection (Gage Line to Nose End)\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProng Diameter\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProng Height\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: ASTM 32510 Malleable Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.72 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: JERGENS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 40702\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JERGENS","offers":[{"title":"Default Title","offer_id":51971384410418,"sku":"40702","price":21.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2bc50b779722122e2109ef83bec41711.jpg?v=1789956498","url":"https:\/\/voomisupply.com\/products\/jergens-40702-tapped-bar-knob-2in-dia-1-2in-thread","provider":"Voomi Supply","version":"1.0","type":"link"}