Strengthened screw type nail for building hinging
A technology for anchors and screws, applied in the direction of screws, pins, threaded fasteners, etc., which can solve the problems of large space of anchors, and the space cannot be completely filled and compressed by particles
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[0031] The first embodiment
[0032] See now figure 1 , 1A And 2, shown in these drawings is a screw self-tapping masonry anchor according to the present invention, the anchor is installed in a hole 10 drilled in the masonry body 11 to install an accessory F or other accessories are fastened to it. The anchor is inserted into the masonry hole through a mounting hole on the accessory aligned with the masonry hole. The masonry building is composed of concrete or other stone masonry materials.
[0033] A reaming nail made of heat-treated hardened steel or other high-strength corrosion-resistant metal has a large hexagonal head 12, so that it can be matched with a wrench or other torque generating tool to screw the reaming nail into the hole in. After the anchor is tightened, the lower side 12A of the head 12 is in a sawtooth shape and is frictionally fitted to the surface of the accessory.
[0034] The masonry anchors disclosed here are all screws with a large head. However, in fa...
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