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Self-tapping Screw / Self-tapping Screw

Self-tapping Screw

The common self-tapping
screw owns super preventable
looseness ability and can be
withdrawn,for its special
thread.The small screw is
powerful for its size,screw
style,headform and drilling
property.The common screw;
however,for its tail is round
and long time erosion,is
always difficult to pull out.
Anyway,with another
Hexagonal part on the tail,
the screw can still be pulled
out,even going through a long
time erosion.

University

GuangZhou Academy Of Fine Arts

GuangZhou Academy Of Fine Arts
Guangdong.Guangzhou, China

Ding Dong,
GuangZhou Academy Of Fine Arts

Ma Jincai,
GuangZhou Academy Of Fine Arts

Huang Junxi,
GuangZhou Academy Of Fine Arts