Shenma M10 power calculation board serial number

1. M10refers to bolts
another problem is the strength grade of bolts
I have a table here, which is the recommended torque value of the bolt, but the premise is that the new bolt meets the standard, without coating and lubrication
the load reaches 90% of the yield strength of the bolt

the recommended torque for the strength of the bolt is
3.614.3
4.619. 1
5.6 23.8
5.8 31.8
6.8 38.1
8.8 50.8
9.8 57.2
10.9 71.5
12.9 85.8

2. Serial number: f2ls3m10hfm4
device name: iPhone 6S plus
storage capacity: 16GB / 32GB / 64GB / 128GB / 256gb *
device color: Black / White / silver *
version: a1699
delivery time: 2016-07-15-2016-07-21
manufacturer: China (Zhengzhou)
warranty status: 2017-10-23
activation time: 2016-10-24
activation status: activated activation
telephone support: January 22, 2017
network support: GSM / CDMA / LTE
genuine new machine

3. It should be no problem. My mobile phone has been activated a few days in advance

4. 21NRA-1HNHM-824LD-8S0D3-VIYF2-TR5L4