Reuse of Fasteners: A Sustainable Solution in Modern Construction
Reusing fasteners is a practical and sustainable solution to reduce construction waste and environmental impact. As challenges exist in different
The Hidden Threat of Fastener Fatigue
Fastener fatigue is a phenomenon that occurs when a fastener undergoes repeated cycles of stress over time which is common
Dangers of Fastener Embrittlement
Understanding the threats that can risk the integrity of components in structures such as fastener embrittlement can lead to preventing
The Future of Smart Fasteners
The future of using smart fasteners in manufacturing, construction, and other industries has a bright potential to enhance the functionality
High-Performance Fasteners for Aerospace
As technology advances and materials continue to evolve, the aerospace industry rely on innovative fastener solutions to meet the growing
Fastener Testing and Quality Control
For some applications that require intricate and reliable fastener devices like automotive, aerospace, and construction, safety is a paramount detail
What Should Be Done When The Bolt And Nut Cannot Be Inserted Freely?
When installing bolts and nuts, insert them freely into the holes. Do not beat them forcibly. The washer of the torsion-shear bolt should be installed on the nut-side. The chamfered side of the washer hole should be in contact with the nut. The washer of the large hexagon head and bolt should be installed on the side of the bolt head and the nut side
The side shall be in contact with the bolt head and shall not be inverted).
When bolts and nuts cannot be inserted freely, do not use gas cutting to expand holes, but use a reamer to lay holes. When fixing holes, keep the plate layer close to prevent iron filings from entering the seam of the plate.
Insert bolts and nuts in the same direction. Tighten the bolts using a wrench, remove the temporary bolts, and replace them with bolts. Do not install bolts in rainy days, and the friction surface should be in a dry state.
The initial wrench should be able to control the torque, and the bolts after the initial screw should be marked for confirmation. In order to prevent leakage, the bolts installed on the same day should be finally screwed on the same day.
When individual can not be operated with a wrench, the torsional shear type bolt should be constructed by torque method according to the large hexagonal head bolt. After the end of the final screw, check the missing screw, underscrew should be used 0.3 ~ 0.5kg weight of the small hammer one by one, if found underscrew, missing screw should be screwed; The overscrew should be replaced. During the inspection, the nut should be returned 30° ~ 50°.
Then screw to the original position, determine the final torque value, the deviation shall not be greater than ±10%, has been the final screw qualified to make a mark.