i'm doing a DIY major maintenance to my hyundai azera & i want my work to be pro. so i'm going to fasten with the proper torque by a meteric fasteners table providing torque for every diameter. the problem is this metric table is asking for the class\garde of the fasteners & the fasteners is only having the number of the diameter on it only! so how to know the grade? is it by the color? or should i do the lower torque for the lower grade to be in the safe side? but i'm afraid it wont tight things properly!
@@BoltsandNutscom The tensile strength describes the maximum mechanical tensile stress that the material can withstand before it breaks. In this case, it is given in Newtons per square millimeter (N/mm²). However, the tensile force given for the strength class is reduced by a factor of one hundred. An 8.8 screw therefore has a tensile strength of 800 N/mm². This means that an M8 screw = 50.27 mm² with 8.8 has a force of 50.27 mm² x 800 N/mm² = 40216N = 40.216kN.
@ mimamaanno6535 I was under the impression for tensile stress the core (minor) diameter was to be used and not the nominal? An M8x1.25 (standard pitch) would have a core diameter of about 80% of the nominal and resulting in 36.6mm^2 only.. not 50.3mm^2.
Those are megapascals (MPa) not millipascals...
#walleyecheatersbusted We got weights-n-fish👀😳
Just an FYI; its megapascal not millipascal. if it was millipascal it would be 1/1000 of a pascal in lieu of 1000000 pascals (1Mpa).. thanks
Great video man, very helpful!
i'm doing a DIY major maintenance to my hyundai azera & i want my work to be pro. so i'm going to fasten with the proper torque by a meteric fasteners table providing torque for every diameter. the problem is this metric table is asking for the class\garde of the fasteners & the fasteners is only having the number of the diameter on it only! so how to know the grade? is it by the color? or should i do the lower torque for the lower grade to be in the safe side? but i'm afraid it wont tight things properly!
Can a harmonic balancer bolt that is grade 10.9 be upgraded to a 12.9 grade? Why or why not?
Good morning, I am having a really had time finding a 10.9 bolt of the size I need. Can I use a grade 8 bolt for a car suspension application?
Why we use 8.8 bolt over 10.9 and 12.9 in iron and steel making industries?
cost
Can we have bolts of different diameters but same gade
100%
@@BoltsandNutscom The tensile strength describes the maximum mechanical tensile stress that the material can withstand before it breaks. In this case, it is given in Newtons per square millimeter (N/mm²). However, the tensile force given for the strength class is reduced by a factor of one hundred. An 8.8 screw therefore has a tensile strength of 800 N/mm². This means that an M8 screw = 50.27 mm² with 8.8 has a force of 50.27 mm² x 800 N/mm² = 40216N = 40.216kN.
@ mimamaanno6535 I was under the impression for tensile stress the core (minor) diameter was to be used and not the nominal?
An M8x1.25 (standard pitch) would have a core diameter of about 80% of the nominal and resulting in 36.6mm^2 only.. not 50.3mm^2.
#walleyecheatersbusted We got weights-n-fish👀😳