E-Z Coil 螺纹衬套和 E-Z LOK STI 丝锥
E-Z Coil™ 螺旋衬套是一种用于金属的螺纹衬套，能够快速修复或加固软金属中的螺纹孔。这种衬套由 18-8 不锈钢丝制成，具有耐腐蚀性，可承受高达 800°F 的温度。在制造过程中，不锈钢丝被压成菱形，然后缠绕成弹簧形状。安装前，衬套的内螺纹直径大于螺纹孔，安装时衬套直径缩小，使其能够拧入孔中。安装完成后，释放的衬套通过径向压力牢固地固定在孔内。更多关于 E-Z LOK™ 产品安装的信息以及金属螺纹衬套的其他产品，可以查看相关资源。
E-Z Coil™ 螺旋衬套的特点包括：快速修复软金属中的损坏螺纹，保护螺纹孔免受磨损和滑丝，由耐腐蚀的 18-8 不锈钢制成。螺旋衬套适用于需要修复或加固软金属螺纹孔的场合，能够抓住软金属孔壁并安装到位，形成内部螺纹以适配标准尺寸的紧固件。
使用螺旋衬套的好处包括耐腐蚀性、能够承受高达 800°F 的温度以及防止螺纹磨损和滑丝。选择合适的螺旋衬套时，应至少选择与螺钉直径一样长的衬套，如果需要更高的强度，建议选择更长的螺旋衬套。具体长度取决于应用材料，例如钢是硬质材料，不需要长衬套，而铝较软，需要更长的衬套。
STI 丝锥（螺纹衬套丝锥）是在安装螺旋衬套等某些类型的螺纹时使用的工具。需要注意的是，STI 丝锥与标准紧固件螺纹丝锥不同，不建议两者互换使用。
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