Use of non-standard screws:
1. Disassemble the damaged bolt (composition, head and screw) nut, then use a suitable wire hammer to do a job on the thread of the frame to remove the rust and other debris in the hole.
Stainless Steel Screws 2. Observe carefully. If a small amount of rust is found to leak from the crack after tapping, it needs to be treated. After the treatment, it is necessary to check whether it needs to be treated.
3. After the welding is completed, turn the nut left and right with a ring wrench, or tap the end face of the nut with a small hammer under slightly cold and slightly hot conditions, and rotate back and forth at the same time to remove the damaged bolt (composition: head and screw)
Down.
Security Screws 4. After the stacking is completed, hit the end face with a hammer to make the bolt (composed of the head and the screw) vibrate in the axial direction. Non-standard custom screws are indispensable industrial products in daily life: such as Zhao Zhao camera, eye mistake
Small screws used in clocks and watches, electronic equipment, etc.; general screws for TVs, electrical appliances, musical instruments, furniture, etc.: large screws and nuts for engineering, construction, and bridges; large screws and small screws for dry vehicles, aircraft. have
Trams, cars, etc. The threads between the bolt and the valve body loosen due to the heat from the previous arc and subsequent cooling and vibration.
5. For electrodes with a diameter less than 3.2mm, select a small current (current), and bring half of the bolt's full length into the hole of the broken bolt (composed of the head and the screw), and the surfacing starts from the inside out. arc don't
Too long to avoid burning on the outer wall of the broken bolt. After surfacing the upper surface of the damaged bolt, a cylinder with a diameter of 14-16mm and a height of 8-10mm is continuously surfacing.
6. First, remove the sludge on the surface of the broken head of the screw. Then use an electric drill to install a 6-8mm diameter drill bit cross-section center blow gun hole in place. Note that this hole must be drilled through. After drilling the holes, remove the small
The drill bit is replaced with a drill bit with a diameter of 16mm, and it is continuously enlarged to drill through the hole of the broken bolt (composed of the head and the screw).
Screw Series 
