mylar insulation sleeves, mylar insulation sleeves ...
Mylar insulation sleeve for metal bolt sleeve 1.Size:1/2"~4"; 2.Material:Mylar,Nomex, 3.Designed to easily fit over standard size flange bolts/studs within standard size bolt holes, insulating sleeves have a wall thickness of 1/32"(0.79mm) and are used with separate insulating and steel washers.
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