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GEFU® thread-rolling screw With Taptite 2000® thread, flattened half round head with collar and hexalobular drive
GEFU<SUP>®</SUP> thread-rolling screw With Taptite 2000<SUP>® </SUP>thread, flattened half round head with collar and hexalobular drive - 1 GEFU<SUP>®</SUP> thread-rolling screw With Taptite 2000<SUP>® </SUP>thread, flattened half round head with collar and hexalobular drive - 2 GEFU<SUP>®</SUP> thread-rolling screw With Taptite 2000<SUP>® </SUP>thread, flattened half round head with collar and hexalobular drive - 3 GEFU<SUP>®</SUP> thread-rolling screw With Taptite 2000<SUP>® </SUP>thread, flattened half round head with collar and hexalobular drive - 4 GEFU<SUP>®</SUP> thread-rolling screw With Taptite 2000<SUP>® </SUP>thread, flattened half round head with collar and hexalobular drive - 5
GEFU<SUP>®</SUP> thread-rolling screw With Taptite 2000<SUP>® </SUP>thread, flattened half round head with collar and hexalobular drive - 1
GEFU<SUP>®</SUP> thread-rolling screw With Taptite 2000<SUP>® </SUP>thread, flattened half round head with collar and hexalobular drive - 2
GEFU<SUP>®</SUP> thread-rolling screw With Taptite 2000<SUP>® </SUP>thread, flattened half round head with collar and hexalobular drive - 3
GEFU<SUP>®</SUP> thread-rolling screw With Taptite 2000<SUP>® </SUP>thread, flattened half round head with collar and hexalobular drive - 4
GEFU<SUP>®</SUP> thread-rolling screw With Taptite 2000<SUP>® </SUP>thread, flattened half round head with collar and hexalobular drive - 5

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GEFU® thread-rolling screw With Taptite 2000® thread, flattened half round head with collar and hexalobular drive

DIN 7500-1 case-hardened (-O-) zinc-plated steel, blue passivated (A2K) with anti-friction coating

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自攻螺钉可在铸盲孔、削缘孔、钻孔、激光和穿孔钣金部件上形成螺母螺纹。不同于螺纹切削，自攻不会使被攻丝材料的结构断裂。实际上，材料会发生移位和应变硬化。



优势：



节省成本


  • 无需螺纹切削


非切削螺纹成型



滚动扭矩低，螺纹齿侧覆盖面更大


  • 三角牙芯直径与螺纹齿侧半径剖面相结合


夹紧力高


  • 滚动扭矩低


负载能力高


  • 螺纹齿侧覆盖面大

  • 应变硬化反螺纹（螺母螺纹）


防止损失（减少螺钉松动的可能性）


  • 螺纹无间隙自锁就位


成型螺纹符合标准公制螺纹要求


  • 必要时，可以使用公制螺钉代替 GEFU 螺钉。
产品须知

必须通过初步测试确定 GEFU 是否适合相关应用或组件。DIN 7500-2 中具体指出了合适孔径的指导值。