Nylon Sleeve Hammer Set Plastic Expansion Anchor Round Head Nail Fixing Plugs Extra Long for Thick Insulation Board Wall Product Description The Extra Long Nylon Sleeve Hammer-Set Plastic Expansion Anchor is designed for fixing thick insulation boards, multi-layer wall panels, and sandwich construction materials where anchors must penetrate through the outer layer and achieve secure embedment into the structural substrate behind. With extended body lengths from 100 mm to 180