Grade 8 vs Grade 43 bolts??
#1
02-19-2009
Grade 8 vs Grade 43 bolts??
What's the difference in grade 8 & grade 43 bolts??
....Other than the 8's are gold & 43's are green.
Both hardware stores here only have grade 8 (well they had a few grade 5 bolts), but TSC only had grade 43.
From what I've read, grade 8 has greater tensile strength than grade 5, but I couldn't seem to find much info on grade 43.
TSC only had grade 43 & from their signage, were all $2.95 a pound.
I already have everything I need in grade 8, but I had to pay about $1.75 for a single 1/2" dia x 1 1/2" long bolt & nut.
What's the grade 43 stuff suitable for?
....Other than the 8's are gold & 43's are green.
Both hardware stores here only have grade 8 (well they had a few grade 5 bolts), but TSC only had grade 43.
From what I've read, grade 8 has greater tensile strength than grade 5, but I couldn't seem to find much info on grade 43.
TSC only had grade 43 & from their signage, were all $2.95 a pound.
I already have everything I need in grade 8, but I had to pay about $1.75 for a single 1/2" dia x 1 1/2" long bolt & nut.
What's the grade 43 stuff suitable for?
#4
02-19-2009
That didnt anwer his question at all, nice try thnks bye
To the OP
This is the most detailed I could find, They say it is a grade 9 metal, heat treated etc.
http://http://www.fatbmx.com/modules...p?storyid=2285
To the OP
This is the most detailed I could find, They say it is a grade 9 metal, heat treated etc.
http://http://www.fatbmx.com/modules...p?storyid=2285
#5
02-19-2009
Found this too
http://en.wikipedia.org/wiki/Screw
Gradings are indicated as markings, while grade 0 is the lowest, grade 10 is the highest. Here is the sequence of bolt strength and markings, from least to most. Grade 0, 1 and 2 bolts have no markings, grade 3 has 2 radial lines, grade 5 has 3, grade 6 has 4, grade 7 has 5, grade 8 has 6, grade 9 has 7, grade 10 has 8.
http://en.wikipedia.org/wiki/Screw
Gradings are indicated as markings, while grade 0 is the lowest, grade 10 is the highest. Here is the sequence of bolt strength and markings, from least to most. Grade 0, 1 and 2 bolts have no markings, grade 3 has 2 radial lines, grade 5 has 3, grade 6 has 4, grade 7 has 5, grade 8 has 6, grade 9 has 7, grade 10 has 8.
#7
02-20-2009
Bolts with designations like "Grade 5" or "Grade 8" are rated on the SAE scale. There is no such thing as a Grade 43 bolt on the SAE scale.
What they are probably referencing at TSC is the class of material that is used to make the bolts - Grade 43 carbon steel. The ASTM spec that includes Grade 43 is usually used to rate chains and structural steel, not bolts. If I had to guess at a rough equivalent for "Grade 43 bolts", I'd say something like SAE Grade 2 or possibly SAE Grade 5. Also, the bulk price of $2.95 a pound should be a tipoff that "Grade 43 bolts" are nothing special.
What they are probably referencing at TSC is the class of material that is used to make the bolts - Grade 43 carbon steel. The ASTM spec that includes Grade 43 is usually used to rate chains and structural steel, not bolts. If I had to guess at a rough equivalent for "Grade 43 bolts", I'd say something like SAE Grade 2 or possibly SAE Grade 5. Also, the bulk price of $2.95 a pound should be a tipoff that "Grade 43 bolts" are nothing special.
#8
02-23-2009
Bolts with designations like "Grade 5" or "Grade 8" are rated on the SAE scale. There is no such thing as a Grade 43 bolt on the SAE scale.
What they are probably referencing at TSC is the class of material that is used to make the bolts - Grade 43 carbon steel. The ASTM spec that includes Grade 43 is usually used to rate chains and structural steel, not bolts. If I had to guess at a rough equivalent for "Grade 43 bolts", I'd say something like SAE Grade 2 or possibly SAE Grade 5. Also, the bulk price of $2.95 a pound should be a tipoff that "Grade 43 bolts" are nothing special.
What they are probably referencing at TSC is the class of material that is used to make the bolts - Grade 43 carbon steel. The ASTM spec that includes Grade 43 is usually used to rate chains and structural steel, not bolts. If I had to guess at a rough equivalent for "Grade 43 bolts", I'd say something like SAE Grade 2 or possibly SAE Grade 5. Also, the bulk price of $2.95 a pound should be a tipoff that "Grade 43 bolts" are nothing special.
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