06
2023/12
News center
What are the factors affecting the maximum tightening torque of the locking nut?
Material strain hardening: When materials are subjected to cyclic loading, the phenomenon of “cyclic strain hardening” or “cyclic strain softening” occurs, which means that under constant amplitude cyclic strain, the stress amplitude increases or decreases with the increase of the number of cycles. After several cycles, the stress amplitude enters a cyclic stable state. The Low-cycle fatigue of the lock nut is carried out under the condition that the strain is constant, and the strain hardening or softening of the thread piece will affect the maximum screw out torque. The alloy steel used for manufacturing lock nuts belongs to the cyclic strain hardening material. Material hardening will increase the elastic recovery force FN of the threaded piece and increase the tightening torque.
06
2023/12
News center
Tips For Rust Prevention and Maintenance of Hexagonal Drilling screws
Hexagonal drilling screws are a common fastener widely used for the connection and fixation of various metal materials. However, due to its unique structure, it is easily damaged due to oxidation, corrosion, and other reasons. Therefore, rust prevention and maintenance of hexagonal drilling screws are very important.
06
2023/12
News center
How to remove the broken Self-tapping screw? What tools are needed?
For the Self-tapping screw broken in the wall or in the wood block, first use a Bench grinder to grind the broken part, prepare a small type of drill bit to drill first, then change it into a larger drill bit, wait until the broken part gradually falls off, and then change it into a thread to tap the tooth, so that the Self-tapping screw broken in the wall can be screwed out. In addition, an iron rod can be welded onto the broken surface and then twisted out in a counterclockwise direction.
06
2023/12
News center
Due to these reasons, stainless steel screws may also rust
In daily life, a large proportion of consumers believe that stainless steel screws are not rusty, but sometimes we may find that the stainless steel screws we use have already started to rust. So what is the reason for stainless steel screws? Let’s take a look at the analysis of the reasons for stainless steel screws rusting for your reference.
06
2023/12
News center
Do you know the difference between blackening and black phosphating of drywall nails?
Phosphating is the process of forming a phosphate chemical conversion film through chemical and electrochemical reactions, and the formed phosphate conversion film is called a phosphating film. The main purpose of phosphating is to protect the base metal and prevent the metal from being corroded to a certain extent; Used for priming before painting to improve the adhesion and corrosion resistance of the paint film; Used to reduce oil film lubrication during metal cold working process.
Recent Posts
Fire Nail Integrated Ceiling Fastener with Ceiling Clip
Material:60 Steel Surface treatment:Galvanized OR Coating paint Model:Ceiling Nail Head Diameter：8.5mm Type：Roofing Nail Sample：free Screw length：27mm,32mm,37mm Style：Common Nail PORT：Tianjn Port
Finish：zinc plated Usage：construction Packing：Cartons+plastic Bags+pallet Keyword：expension bolt Application：wall or others Color：Yellow/White Zinc Plated Sample：free Surface treatment：Bright(Uncoated), Polish, Passication Size ：M6-M16
Material: C1022 with hardened. Head type: hex washer head, hex flange head. Finish: white/yellow/blue zinc coated, hot-dipped galvanized, zinc-nickel alloy coating, black oxidized. Assembling: steel bonded washer, stainless steel bonded washer, PVC washer, stainless steel hex cap, umbrella-type washer, nylon cap. Diameter: 3.5mm – 6.3mm. Length: 13mm – 200mm.
Categories
Stay In Touch
Sign up for machio.com
news, sales & deals.
Address：Donglantuo Village, Wangwenzhuang, Xiqing District, Tianjin, China