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69. Screws & Nuts
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HELI-SERT
HELI-SERT
IMPA Code:
693801
Made of stainless steel or bronze. Instead of building up a thread hole by welding worn out threads or using bushes for rethreading, you just have to clean the hole with a tap and insert these heli-serts. Tightening procedure is the same as with the original thread. The proper length of the heli-sert should usually be 1 - 2 times the length of the standard bolts being used.
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