Double Single
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SINGLE
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Can be used
for fastening into rock, concrete, brick ,etc.
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If bolt
is removed and replaced, holding power is unaffected.
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Made of
zamak alloy, is entirely rust-proof.
DOUBLE
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Can be used
for fastening into rock, concrete, brick, etc.
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Eliminates
high stress points detrimental in fastening into materials of medium
hardness, expands full and has high gripping power.
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Made of
zamak alloy.
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Does not
fracture, and permits fastenings at any length.
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It consists
of twin tublar sleeves one cone with thread, one cone with smooth
and spring steel band.
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The special
style can be made according to sketch or sample.
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