Method of manufacture of anti-slip fastener

作者: Imre Czegledi

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摘要: A fastener system includes a and driver tool in which the cavity for insertion of form an interlocking relationship between is formed by having portion overlie tool. This prevents accidental separation from consequent marring surfaces work pieces being joined together also stripping cavity.

参考文章(13)
Jacques Lutrat, Non-slip screw ,(1983)
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Theodor A O'leary, Screw and the method of making same ,(1936)
Rudolph Marion Vaughn, Self-aligning high torque screw slot ,(1969)