Nylon Sleeve Hammer Set Plastic Expansion Anchor Round Head Nail Fixing Plugs Heavy Duty for Solid Concrete Wall Product Description The Heavy Duty Nylon Sleeve Hammer-Set Plastic Expansion Anchor is engineered for high-load applications in solid concrete and reinforced concrete substrates where standard anchors may not provide sufficient pull-out resistance. The anchor features a thickened nylon PA6 sleeve wall design that provides 1.5 times the cross-sectional material of