Often called pig nose or twin hole, this screw head has two spherical holes which can be reverse each other and resemble a pig’s nose. It is just a safety-design and style screw to avoid tampering. You may need a Specific spanner screwdriver for this type of screw head.These screws have the looks that there is a hat or cap on the top of the screw… Read More


Tamper-evidence screws can be used to prevent or reduce vandalism in structures or locations which have been open to the general public. The weird push distinguishes this protection screw type, generating disassembly or tampering more difficult, Otherwise impossible.The assorted generate ideas are made for several different causes. Some are patent… Read More


A roof valley is one of The main parts of the roof as it’s the way in which water pours right down to the gutter.At the end of the day, you should have no roof valley problems so long as they have the proper material and they are the right way put in. But just know neglecting roof valleys can cause issues (more on that inside of a minute).Th… Read More