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this is special goods, it is not require precise hole depth or hold cleaning out.
this kind of anchor can be hammered below the surface of the concrete when up longer needed.
the one piece clip is formed around anchor, assuring full expansion for dependable, superior holding power. expanding clip will not fall off or twist in the hole.
the test value were around 246-281 kilogram concrete(no aggregate) a safe load should not exceed 25%of stated value.
this products also contains different styles using in different construction set.