Stainless steel hexagon bolts include hexagon head bolts (partial thread) and hexagon head bolts (full thread), also known as hexagon head bolts (coarse), wool hexagon head bolts, and black iron screws. It is one of the common types of stainless steel bolts, in addition to hexagon socket bolts, non-standard bolts, etc. Due to the characteristics of stainless steel, stainless steel bolts are more tensile, rust-resistant, and more aesthetically pleasing than ordinary carbon steel bolts.
Stainless steel hex bolts are not strictly equipped with a torque wrench during assembly. Most people don't know the specific tightening torque, and think that the tighter the better; the tightening of the connecting rod hexagonal bolts uses a long afterburner, and the tightening torque is too large. The material of the stainless steel hexagonal bolt exceeds the yield limit, causing the connecting rod hexagonal bolt to yield and deform, reducing the service life of the stainless steel hexagonal bolt. If the fastener fails, it will break due to excessive elongation under the impact load, which is prone to safety accidents. It should be emphasized that the connecting rod hex bolts must be tightened according to the standard, and it must not be considered that the tighter the tightening and the greater the strength, the better.
