When the pin is set, the anchor is locked! Now you can tell instantly whether the anchor that you are depending upon to hold a heavy load has been installed properly - just by looking at the pin. If it's set, the anchor is ready to use. Better yet, the anchor is set by simply dropping it into an appropriately drilled hole ( depth is not critical) and hammering home the pin. You'll never need to worry again about an anchor failing to seat because the wedge didn't grab, or about unset, unsafe anchors waiting to fail at the worst possible moment. Remember, when the pin is set, the anchor is ready to use. Bag of 10 includes nuts, washers, and pin drive anchors. Drill the hole the same size as your anchor. Recommended for use in concrete only! Yellow Zinc plated. Made in USA.
Size x Length: 5/16-18 x 4
Thread Length: 1-1/4"
Maximum Thickness Fastened: 2-1/2"
Minimum Embedment: 1-1/4"