12*10=1200 is minimum tensile strength
90% of 1200 i.e. 1200*.9=1080 is elongation yield limit
units are N/mm2
It means a trace back to airline.
6 is the diameter of the bolt whereas 32 is the thread pattern. Usually used in machine screws.
6 is the diameter of the shaft and 32 is the number of threads it has per inch.
The first figure is the UTS of the bolt in hundreds of Mpa (so an 8.8 bolt fails at 800 Mpa) while the second figure is the percentage of UTS at which plastic deformation occurs, divided by 10. (so your 8.8 bolt stretches permanently at 80% of 800 Mpa, or 640 Mpa).
Many High Tensile bolts will have a number of raised strokes formed in the head of the bolt. Three or five are common and usually form a reverse triangle or reverse heptagon
The are a number of mathematical operations that gives us the number 129. When you add 100 to 29 you will get 129. Similarly when you subtract 11 from 140, you will get 129.
129+1
129 is a Composite Number.
It's a measure of the strength of the bolt. The strength is measured using what's called a grade. In this case, you have a grade 8 bolt. The higher the number, the stronger the bolt.
1, 3, 43, 129.
129 is divisible by three, hence it is a composite number.
bolt strength markings. Numbers represent metric threads and slashes represent standard threads (the greater the number/slashes, the greater the strength of the bolt.
129 = 3 x 43
115 + 14 = 129
Exactly as it is because 129 is an integer or a whole number
The number 129 is translated into Spanish as "ciento veintinueve".
The halfway number is (15 + 129) /2 = 144/2 = 72