Оцинкованный горячим способом ремонт автомобиля

Bolt materials commonly used materials: carbon steel Q195, Q235, 35K and 45# steel, for important or special purpose thread joints, can choose alloy steel with higher mechanical properties, or choose stainless steel material Name Screw Type Expansion Anchor Bolts expansion bolts Size M6～M24 Length 40mm～300mm Grade 4.8 5.8 6.8 8.8 Material (1) Bolt materials commonly used materials: carbon steel Q195, Q235, 35K and 45# steel, for important or special purpose thread joints, can choose alloy steel with higher mechanical properties, or choose stainless steel material (2) The allowable stress of the thread connection is related to the load nature (static and variable load), whether the connection is tightened, whether the pretightening force needs to be controlled, and the material, structure and size of the thread connection. Surface Electric galvanizing, hot galvanizing, Dacro Description Car repair gecko, concrete void depth and cleanliness does not have high requirements, easy to install, and the price is not expensive. According to the thickness of the solid roof to choose the appropriate embedding depth, with the increase of embedding depth, tension increase, this product has a reliable expansion function. Construction operation technology 1. Determine the total thickness of the material to be fastened. 2. Drill hole diameter to that equaling the O.D of the thru bolt being used. Depth is equa tol or greater than the thickness of material plus any spacing rings and required embedment. 3. Clean hole thoroughly of all chippings and concrete dust, re check hole depth. 4. Taking the thru bolt as a complete assembly, adjust the nut up to flush with the top of the thread, a flat washer should be under the nut, place thru bolt down through the hole in the artcle to be fastened pressing it as far as it will go. 5. After the thru bolt has been tapped down fully into the hole, take up the slack by tightening the nut down onto the flat washer which in turn should be resting against the fixture. Scope of application Suitable for concrete and dense natural stone, metal structure, metal profile, bottom plate, support plate, bracket, railing, window, curtain wall, machine, girder, truss, bracket and so on. product feature This product has long threads and is easy to install. It is usually used in heavy load facilities. To get a reliable, substantial tightening force, you have to make sure that the clip that's attached to the gecko is fully inflated. And the expansion clip should not be detached from the rod or distorted in the hole. The calibrated tensile strength values are tested under the conditions of 260~300kgs/cm2 cement strength, and the maximum safety load shall not exceed 25% of the calibrated value. Keywords: Hot dip galvanized car repair