黒いプラスチック製のドームプロテクションキャップ,スクリューカバー,グリップナットボルト,m3 m4 m5 m6 m8 m10 m12 m14 m16 m18 m20 m22 m24

Shop Guide
For Nuts
Measure across flats size of nut,select the model corresponding to the inner hole diameter.
Measure the length of the protruding screw under the nut and the nut,determine if the internal space of PE cap is enough.
For external hexagon screws
Measure the size of the head of the outer hexagon screw,select the model corrsponding to the inner hole diameter
Effect as shown in the figure
Prevent accidental injury caused by protruding parts of nuts and screws
Waterproof and rust proof,reduce dust pollution and rain wash,extend the service life of screws and nuts