Mechanical Properties of Steel Nuts with Course Threads

According to ISO 898 part 2

 Property Class
Q4Q5456
ThreadProof stress (Sp)Vickers Hardness HvProof stress (Sp)Vickers Hardness HvProof stress (Sp)Vickers Hardness HvProof stress (Sp)Vickers Hardness HvProof stress (Sp)Vickers Hardness Hv
overtoN/mm²minmaxN/mm²minmaxN/mm²minmaxN/mm²minmaxN/mm²minmax
-M4380188302500272353   520130302600150302
M4M7580670
M7M10590680
M10M16610700
M16M39510117302630147720170

 

 Property Class
891012
ThreadProof stress (Sp)Vickers Hardness HvProof stress (Sp)Vickers Hardness HvProof stress (Sp)Vickers Hardness HvProof stress (Sp)Vickers Hardness HvProof stress (Sp)Vickers Hardness Hv
over toN/mm²minmaxN/mm²minmaxN/mm²minmaxN/mm²minmaxN/mm²minmax
-M4800180302900170302104027235311402953531150272353
M4M7855200915188104011401150
M7M10870940104011401160
M10M16880950105011701190
M16M399202233539201060--1200

Note: Due to the fact that fastening applications differ greatly, the above information is for guidance only and is correct to the best of our knowledge. The customer must satisfy themselves with the performance of the fastener and validity of the data. TR Fastenings will not be held responsible for any failure that may occur from the use of this information.