A tamper-resistant nut prevents unwanted removal of the object you are anchoring. Turn the nut round side up for a domed look or countersink the nut flat side up for a flush surface. To install, hammer the pin to expand the end. When the pin is flush, the anchor is set. Pull-out strength and shear strength values are 25% of the ultimate values.

3D CAD models availableFor technical drawings and 3-D models, click on a part number.

Strength,

lbs.

Lg. Thread

Lg. Drill Bit

Size Min.

Installation Dp. Pull-Out Shear Tested In For Use In Pkg.

Qty. Pkg.

Steel

1/4" Dia.

1 3/4" 5/8" 1/4" 1" 320 400 4,000 psi Concrete Block, Brick, Concrete, Stone 10 99080A120 $15.40

2 3/8" 3/4" 1/4" 1" 320 400 4,000 psi Concrete Block, Brick, Concrete, Stone 4 99080A140 10.77

3/8" Dia.

2 3/8" 1" 3/8" 1 1/2" 850 850 4,000 psi Concrete Block, Brick, Concrete, Stone 4 99080A360 12.89

3 1/2" 1 1/8" 3/8" 1 1/2" 850 850 4,000 psi Concrete Block, Brick, Concrete, Stone 5 99080A390 13.26