Keyserts are solid，one-piece，key-locking inserts used to repair damaged threads or for use in original equipment。
Keysert是一种坚固的一体式键锁螺套，常用来修复损坏的螺纹或者在一些设备中作为初始装备使用。
The Keysert locking keys provide a positive mechanical lock which prevents rotation due to vibration or torsion。
Keysert的插销键可以提供一个强力的机械锁以阻止工件因振动或扭力而发生旋转。
Keyserts are available in carbon or stainless steel，both in inch and metric series。
Keysert产品材质上分碳钢和不锈钢两种，规格上同时具备英制和公制尺寸系列。
Thinwall，Heavy Duty，Extra Heavy Duty，and Solid insert styles are available separately or in kits containing a range of sizes。
Keysert有薄壁型，重型，特重型，实心型等几种，各自都有一个系列规格。
Installation tools are also available separately or in a range kit。
安装工具可单独购买或作为工具包整体购买。
二、Features产品特征
1、Installed with standard drills and taps使用标准钻头和丝攻进行安装
2、Easy installation安装简便
3、May be used in many materials：aluminum，magnesium，and cold rolled steel可用于许多材质：铝，镁，冷轧钢
4、Easy to remove便于拆卸
三、Typical Applications典型应用
1、Trucks，轨道交通
2、Machinery，Small Engine机械设备，微型发动机
3、Molds，Tool and Die模具、机床、冲模
4、MRO Tasks专业维护
四、Important Note要点提示
Keyserts are not recommended for use in brittle materials，like cast iron or plastic
Requests for more information are welcome。The user assumes full responsibility for his or her applications。
Keysert插销螺套不推荐使用于脆性材料，而更多用于铸铁和更多要求的塑料材质中。
五、Installation and Removal安装和拆卸
Installation安装
1、Drill out old threads with a standard drill。用标准钻头进行钻孔，注意适当倒角 (82°-100°)。
2、Tap new threads with a standard tap用标准丝锥进行攻丝
3、.Screw in the insert until slightly below surface。将螺套装进去至稍低于工件表面。
4、Drive keys down with several hammer taps on the proper installation tool。用适当的工具将插销键敲入插销螺套里。
Removal拆卸
1、Drill out material between keys and internal thread with standard drill to specified depth (refer to charts for proper dimensions)。将螺套钻掉一部分到一定的深度。
2、Deflect keys inward and break off。将插销螺套里的插销键向内折弯并折断。
3、Remove insert using an E-Z OUT or similar type tool。用易卸工具或类似工具将插销螺套取出。
4、Same size replacement insert may be installed in the original hole。取出过插销螺套的螺纹孔可继续安装同样尺寸的螺套。
六、Keysert插销螺套 73057 产品型号参数：
材质：不锈钢303
内螺纹（Internal Thread)：5/16-18
外螺纹（External Thread)：1/2-13
长度（Length）：0.43英寸
型号：英制重型
