发明公开
EP3276188A1 SCREW 审中-公开

SCREW
摘要:
This screw (20) comprises a shank (1) provided with a thread (13), that ends in a final attack portion (2) and on the opposite end of which there is a head (3), including flaps (4) that protrude diametrically. The screw (20) has at least one pair of flaps (4) located along a portion of the shank (1), without these flaps (4) being present on the area corresponding to the final attack end (2).
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