{"product_id":"gibraltar-kn4x-5x-b3-ball-knob-1-3-8-in-black","title":"Gibraltar KN4X-5X-B3----- Ball Knob 1-3\/8 in Black","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GIBRALTAR KN4X-5X-B3----- is a polypropylene ball knob designed for use on threaded fasteners in light industrial, mechanical, and equipment assembly applications. The knob measures 1.38 inches in diameter and 1.28 inches in height, with a hub diameter of 0.75 inches and a threaded hole depth of 0.71 inches. Its ball-grip profile allows operators to apply torque quickly by hand without tools. The black polypropylene construction resists common shop chemicals and holds up well in both indoor and temperature-stable outdoor environments. Licensed trades and equipment technicians reach for this style of knob when a tool-free adjustment point is needed on panels, guards, jigs, or equipment enclosures.\u003c\/p\u003e\n\u003cp\u003eThis ball knob fits a wide range of threaded hole configurations, making it versatile across HVAC equipment panels, electrical enclosures, plumbing access covers, and general mechanical assemblies. It is sold individually and is appropriate for both original equipment manufacturing and field replacement scenarios where a hand-operable fastener knob is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBall-grip profile allows fast hand tightening and loosening without tools\u003c\/li\u003e\n  \u003cli\u003ePolypropylene construction resists moisture, oils, and mild chemicals\u003c\/li\u003e\n  \u003cli\u003e1.38-inch diameter with 0.75-inch hub diameter for secure grip\u003c\/li\u003e\n  \u003cli\u003eCompatible with six common thread sizes: 1\/4-20, 1\/4-28, 5\/16-18, 5\/16-24, M6, and M8\u003c\/li\u003e\n  \u003cli\u003eHole depth of 0.71 inches accommodates standard fastener engagement lengths\u003c\/li\u003e\n  \u003cli\u003eBlack color finish for clean, professional appearance on equipment panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned to fit threaded inserts or studs in sizes 1\/4-20, 1\/4-28, 5\/16-18, 5\/16-24, M6, and M8, making it suitable as a hand-knob replacement or new installation across a broad range of light industrial and trade equipment applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis knob is installed by hand onto a compatible threaded stud or insert — no special tools are required for standard installations. Confirm the thread pitch and diameter of the mating fastener before installation to ensure proper engagement. Do not exceed the knob material's rated torque limits by using tools to drive the knob, as polypropylene threads can strip under excessive force. Disengage or de-energize any equipment before accessing panels or guards where this knob is used as a fastener.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKnob Material\u003c\/strong\u003e: Polypropylene\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrip Type\u003c\/strong\u003e: Ball\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 1.38 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 1.28 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHub Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Depth\u003c\/strong\u003e: 0.71 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Thread Sizes\u003c\/strong\u003e: 1\/4-20, 1\/4-28, 5\/16-18, 5\/16-24, M6, M8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.4 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: GIBRALTAR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: KN4X-5X-B3-----\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51690606166322,"sku":"KN4X-5X-B3-----","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/68814876b8189f8c5498d50c125a3b40.jpg?v=1788272507","url":"https:\/\/voomisupply.com\/products\/gibraltar-kn4x-5x-b3-ball-knob-1-3-8-in-black","provider":"Voomi Supply","version":"1.0","type":"link"}