I was just wondering what the different colored (silver, gold, blue) bolts mean. I know the number/marks on the top of the bolt indicate the bolts class. I was just wondering if lets say a class 8 or 10.9 is always the blue color because it is made out of a stronger alloy? Or can it be the other the other two colors (silver,gold) and still be just as strong and in the same class but the blue color is just a film on the outside of the bolt to prevent weathering better?
2006-07-01 02:53:34 · 6 answers · asked by Anonymous in Home & Garden ➔ Do It Yourself (DIY)
You are confusing metric sizes and USA grades... breifly -
First of all - you will not find many grade 8 bolts anymore -
(especially the good ole black ones) The grey-zinc bolts you find at most of the big home centers are grade 5 or less...
The grade of a bolt is generally marked on the hex head, by the amount of ' slashes it has - You cannot rely on the number...
There is more on this but i will refrain
The colored bolts are usually metric and have their size marked on the top - usually. I do not work with metric - - - -
2006-07-01 05:14:32 · answer #1 · answered by captbryguy 5 · 0⤊ 0⤋
This Site Might Help You.
RE:
what are the differences between the three different colored bolts?
I was just wondering what the different colored (silver, gold, blue) bolts mean. I know the number/marks on the top of the bolt indicate the bolts class. I was just wondering if lets say a class 8 or 10.9 is always the blue color because it is made out of a stronger alloy? Or can it be the other...
2015-08-16 19:39:00 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Colored Bolts
2016-10-19 05:11:54 · answer #3 · answered by Anonymous · 0⤊ 0⤋
You have it correct, the silver and gold are simply colors available for your typical bolt, and have nothing to do with the strength... the strength of the bolt is shown by the markings on the head.
Blue tho, is usually a corrosion inhibitor, used most commonly on screws/bolts that are going to be placed in concrete. These are usually a bit more expensive than the other bolts.
2006-07-01 04:30:31 · answer #4 · answered by thewrangler_sw 7 · 0⤊ 0⤋
The grade (number of marks) is a relative strength indicator. I don't think the color means anything. Probably as you surmise, it's a corrosion inhibitor.
2006-07-01 03:43:45 · answer #5 · answered by Mr. Peachy® 7 · 0⤊ 0⤋
THE DIFFERENT COLORS REPRESENTS THE GRADE. SILVER=GR 5 BLUE=GR 6 GOLD =GR 8. 8 IS THE BEST
2006-07-01 04:28:02 · answer #6 · answered by Anonymous · 0⤊ 0⤋
as far as i know color makes no difference,except fpr the users personal preference.
2006-07-01 02:58:59 · answer #7 · answered by xnnyl76 2 · 0⤊ 0⤋