.Custom Super Heavy Duty Tamper Resistant Hand Hole Covers Unfinished 2 7/8" measured straight across)

2 7/8" measured straight across)

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3 1/16" measured straight across)

Curve Diameter: Choose

Penta Plus screws from Bryce Fasteners are high-security screws that aren't available in stores

.Custom Super Heavy Duty Tamper Resistant Hand Hole Covers Unfinished 2 7/8" measured straight across)Custom Super Heavy Duty Hand Hole Covers are machined from 3 8" thick steel. A 1" long Screw Extension is welded to the back side of the cover for maximum tamper resistance. A step is machined on the inside to prevent the cover from being moved. Penta Plus screws from Bryce Fasteners are high security screws that aren't available in stores. The bits to install and remove them aren't available to the public. Click here for the bit. 2" long Penta Plus