A\u00a0Bend Screw<\/strong>, also known as a\u00a0Dog Point Set Screw<\/strong>\u00a0or\u00a0Flat Point Set Screw<\/strong>, is a specialized type of fastener designed for precise positioning and securing of one component against another, typically on a shaft or within a bore. Unlike standard set screws with a conical point that can dig into the shaft, a bend screw features a unique\u00a0curved or radiused end<\/strong>. This design creates a line contact (as opposed to a point contact) with the shaft, significantly increasing the holding power and minimizing stress concentration on the shaft. It is an excellent choice for applications requiring frequent adjustments or where damage to the secured component must be avoided.<\/p>\n Bend screws are manufactured from various materials to meet different strength, corrosion resistance, and environmental needs.<\/p>\n Carbon Steel:<\/strong>\u00a0The most common material, often hardened and tempered for high strength.<\/p>\n<\/li>\n Alloy Steel:<\/strong>\u00a0Used for applications requiring higher strength and fatigue resistance.<\/p>\n<\/li>\n Stainless Steel:<\/strong>\u00a0(e.g., 18-8, 304, 316) Provides excellent corrosion resistance for use in harsh environments.<\/p>\n<\/li>\n Brass:<\/strong>\u00a0Used in applications requiring non-magnetic and non-sparking properties, or in plumbing to prevent galvanic corrosion.<\/p>\n<\/li>\n<\/ul>\n Surface finishes are applied to enhance corrosion resistance, appearance, and sometimes lubricity.<\/p>\n Black Oxide:<\/strong>\u00a0A common finish that provides mild corrosion resistance and a black appearance.<\/p>\n<\/li>\n Zinc Plating:<\/strong>\u00a0Offers good corrosion resistance and can be in clear (blue), yellow, or black chromate.<\/p>\n<\/li>\n Nickel Plating:<\/strong>\u00a0Provides a hard, wear-resistant surface with good corrosion resistance.<\/p>\n<\/li>\n Chrome Plating:<\/strong>\u00a0Used for high corrosion resistance and a decorative finish.<\/p>\n<\/li>\n<\/ul>\n Bend screws are defined by several key specifications.<\/p>\n Drive Type:<\/strong>\u00a0Most commonly available in\u00a0Hex Socket (Allen drive)<\/strong>\u00a0for high torque application and a clean look.<\/p>\n<\/li>\n Point Type:<\/strong>\u00a0The defining feature is the\u00a0Bend Point<\/strong>\u00a0(curved end).<\/p>\n<\/li>\n Size:<\/strong>\u00a0Specified by thread size (e.g., M4, M5, M6, 1\/4″-20, 5\/16″-18) and length.<\/p>\n<\/li>\n Standards:<\/strong>\u00a0Often manufactured according to standards like\u00a0ISO 7379<\/strong>\u00a0for bend point set screws.<\/p>\n<\/li>\n<\/ul>\n Bend screws are used in precision mechanical assemblies where secure and repeatable positioning is critical.<\/p>\n Shaft Collars and Hubs:<\/strong>\u00a0To secure pulleys, gears, and levers onto shafts without causing significant damage.<\/p>\n<\/li>\n Precision Machinery:<\/strong>\u00a0In adjusting screws for aligning components in optical equipment and measuring instruments.<\/p>\n<\/li>\n Automotive Systems:<\/strong>\u00a0For securing knobs and controls on steering columns and other shafts.<\/p>\n<\/li>\n Jigs and Fixtures:<\/strong>\u00a0Where components need to be frequently adjusted and re-secured without losing grip.<\/p>\n<\/li>\n<\/ul>\n In a high-precision\u00a0Computer Numerical Control (CNC) milling machine<\/strong>, the backlash (play) in the gearbox connecting the servo motor to the ball screw must be meticulously minimized and maintained. Any slippage or movement between the coupling and the motor shaft would result in positioning errors, leading to poor machining accuracy and scrapped parts.<\/p>\n The solution employed by a leading manufacturer was to use\u00a0hardened alloy steel bend screws<\/strong>\u00a0with a\u00a0black oxide finish<\/strong>\u00a0to secure the coupling to the motor shaft. Here’s why it was the perfect choice:<\/p>\n Superior Grip:<\/strong>\u00a0The curved end of the bend screw conformed perfectly to the radius of the motor shaft, creating a large area of contact. This distributed the clamping force evenly and provided a much stronger grip than a standard cup point set screw, preventing any micro-slippage under high torque loads.<\/p>\n<\/li>\n Minimal Shaft Damage:<\/strong>\u00a0Unlike a cup point that digs a crater into the shaft, the bend screw’s design minimized permanent deformation. This was critical because it allowed engineers to make fine adjustments during calibration and re-tighten the screw without worrying about the screw point “walking” into a previously damaged area, which would compromise the set position.<\/p>\n<\/li>\n Repeatable Precision:<\/strong>\u00a0The combination of high holding power and minimal shaft damage meant that once the gearbox was calibrated for zero backlash, the setting would remain stable over thousands of hours of operation, even through intense vibration and load cycles.<\/p>\n<\/li>\n<\/ol>\n This application of the bend screw ensured the CNC machine maintained its micron-level positioning accuracy, drastically reducing downtime for recalibration and improving the overall quality and consistency of the machined components. It perfectly illustrates how a simple, well-designed component is vital to the performance of a complex system.<\/p>","protected":false},"excerpt":{"rendered":" Durable L Type Bend Screw Superior L Shaped Right Angle Square Bend Screw Hook<\/p>","protected":false},"featured_media":4031,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[35],"product_tag":[2735,185,186,183,184,2737,2738,2739,181,182,2740,845,2741,2742,1325,187,2736],"class_list":{"0":"post-4030","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-machined-screws","7":"product_tag-bend-screw","8":"product_tag-cnc-machined-screw","9":"product_tag-cnc-machined-screws","10":"product_tag-cnc-machining-screw","11":"product_tag-cnc-machining-screws","12":"product_tag-l-screw","13":"product_tag-l-screw-hook","14":"product_tag-l-screws","15":"product_tag-machined-screw","16":"product_tag-machined-screws","17":"product_tag-metal-screw","18":"product_tag-metal-screws","19":"product_tag-screw-with-hook","20":"product_tag-screws-with-hook","21":"product_tag-special-screw","22":"product_tag-special-screws","23":"product_tag-square-bend-screw-hook","25":"first","26":"instock","27":"shipping-taxable","28":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/machinedwasher.com\/it\/wp-json\/wp\/v2\/product\/4030","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/machinedwasher.com\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/machinedwasher.com\/it\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/machinedwasher.com\/it\/wp-json\/wp\/v2\/comments?post=4030"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/machinedwasher.com\/it\/wp-json\/wp\/v2\/media\/4031"}],"wp:attachment":[{"href":"https:\/\/machinedwasher.com\/it\/wp-json\/wp\/v2\/media?parent=4030"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/machinedwasher.com\/it\/wp-json\/wp\/v2\/product_brand?post=4030"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/machinedwasher.com\/it\/wp-json\/wp\/v2\/product_cat?post=4030"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/machinedwasher.com\/it\/wp-json\/wp\/v2\/product_tag?post=4030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nMaterials<\/h2>\n
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Surface Treatments<\/h2>\n
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Specifications<\/h2>\n
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Application Fields<\/h2>\n
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\nAn Excellent Case: Precision Gearbox Adjustment in a CNC Machine<\/h2>\n
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