grade 5 bolts not marked if galvanized?Is there an issue using a stainless steel bolt with a hot-dip...
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grade 5 bolts not marked if galvanized?
Is there an issue using a stainless steel bolt with a hot-dip galvanized nut and washer?Bolt hole reinforcement? For barrel boltsName of door/cabinet knob that operates two bolts at once
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I went to a local building supply company - one that tends to have a better selection than the big-box places - seeking some Grade 5 carriage bolts.
They pointed me to bins of galvanized carriage bolts. I checked and did not see the 3 radial lines that normally mark Grade 5. They said "galvanized bolts do not have the marking, but rest assured they are Grade 5"; in fact, I believe they implied that galvanized are always Grade 5 (or higher).
I tend to think they are lying or misinformed, but thought I would seek clarification.
hardware
asked 2 days ago
RustyShacklefordRustyShackleford
4826 silver badges20 bronze badges
|
show 3 more comments
I went to a local building supply company - one that tends to have a better selection than the big-box places - seeking some Grade 5 carriage bolts.
They pointed me to bins of galvanized carriage bolts. I checked and did not see the 3 radial lines that normally mark Grade 5. They said "galvanized bolts do not have the marking, but rest assured they are Grade 5"; in fact, I believe they implied that galvanized are always Grade 5 (or higher).
I tend to think they are lying or misinformed, but thought I would seek clarification.
hardware
asked 2 days ago
RustyShacklefordRustyShackleford
4826 silver badges20 bronze badges
I'm using these to hang an old-school Hunter ceiling fan, the kind that are cast iron and weigh about 50lb. With the poor quality of hardware I've seen recently, I think it's worth getting graded bolts. I can always order them from places like boltdepot, but I would like to source locally.
– RustyShackleford
2 days ago
Do you need galvanized? Big box stores do sell grade 5 and grade 8 bolts. Auto parts stores are another source.
– JPhi1618
2 days ago
I don't need galvanized; that's just where they sent me when I said I needed Grade 5.
– RustyShackleford
2 days ago
My assumption was that galvanized bolts are not graded and are low grade. Just go to an Ace or Lowes or Home Depot, but I'd be interested if anyone knows better about galvanized.
– JPhi1618
2 days ago
Those places MIGHT have grade 5 hex bolts, but not carriage.
– RustyShackleford
2 days ago
|
show 3 more comments
I went to a local building supply company - one that tends to have a better selection than the big-box places - seeking some Grade 5 carriage bolts.
They pointed me to bins of galvanized carriage bolts. I checked and did not see the 3 radial lines that normally mark Grade 5. They said "galvanized bolts do not have the marking, but rest assured they are Grade 5"; in fact, I believe they implied that galvanized are always Grade 5 (or higher).
I tend to think they are lying or misinformed, but thought I would seek clarification.
hardware
asked 2 days ago
RustyShacklefordRustyShackleford
4826 silver badges20 bronze badges
I went to a local building supply company - one that tends to have a better selection than the big-box places - seeking some Grade 5 carriage bolts.
They pointed me to bins of galvanized carriage bolts. I checked and did not see the 3 radial lines that normally mark Grade 5. They said "galvanized bolts do not have the marking, but rest assured they are Grade 5"; in fact, I believe they implied that galvanized are always Grade 5 (or higher).
I tend to think they are lying or misinformed, but thought I would seek clarification.
hardware
hardware
asked 2 days ago
RustyShacklefordRustyShackleford
4826 silver badges20 bronze badges
asked 2 days ago
RustyShacklefordRustyShackleford
4826 silver badges20 bronze badges
edited 2 days ago
RustyShackleford
asked 2 days ago
RustyShacklefordRustyShackleford
4826 silver badges20 bronze badges
asked 2 days ago
RustyShacklefordRustyShackleford
4826 silver badges20 bronze badges
asked 2 days ago
RustyShacklefordRustyShackleford
4826 silver badges20 bronze badges
4826 silver badges20 bronze badges
I'm using these to hang an old-school Hunter ceiling fan, the kind that are cast iron and weigh about 50lb. With the poor quality of hardware I've seen recently, I think it's worth getting graded bolts. I can always order them from places like boltdepot, but I would like to source locally.
– RustyShackleford
2 days ago
Do you need galvanized? Big box stores do sell grade 5 and grade 8 bolts. Auto parts stores are another source.
– JPhi1618
2 days ago
I don't need galvanized; that's just where they sent me when I said I needed Grade 5.
– RustyShackleford
2 days ago
My assumption was that galvanized bolts are not graded and are low grade. Just go to an Ace or Lowes or Home Depot, but I'd be interested if anyone knows better about galvanized.
– JPhi1618
2 days ago
Those places MIGHT have grade 5 hex bolts, but not carriage.
– RustyShackleford
2 days ago
|
show 3 more comments
I'm using these to hang an old-school Hunter ceiling fan, the kind that are cast iron and weigh about 50lb. With the poor quality of hardware I've seen recently, I think it's worth getting graded bolts. I can always order them from places like boltdepot, but I would like to source locally.
– RustyShackleford
2 days ago
Do you need galvanized? Big box stores do sell grade 5 and grade 8 bolts. Auto parts stores are another source.
– JPhi1618
2 days ago
I don't need galvanized; that's just where they sent me when I said I needed Grade 5.
– RustyShackleford
2 days ago
My assumption was that galvanized bolts are not graded and are low grade. Just go to an Ace or Lowes or Home Depot, but I'd be interested if anyone knows better about galvanized.
– JPhi1618
2 days ago
Those places MIGHT have grade 5 hex bolts, but not carriage.
– RustyShackleford
2 days ago
I'm using these to hang an old-school Hunter ceiling fan, the kind that are cast iron and weigh about 50lb. With the poor quality of hardware I've seen recently, I think it's worth getting graded bolts. I can always order them from places like boltdepot, but I would like to source locally.
– RustyShackleford
2 days ago
I'm using these to hang an old-school Hunter ceiling fan, the kind that are cast iron and weigh about 50lb. With the poor quality of hardware I've seen recently, I think it's worth getting graded bolts. I can always order them from places like boltdepot, but I would like to source locally.
– RustyShackleford
2 days ago
Do you need galvanized? Big box stores do sell grade 5 and grade 8 bolts. Auto parts stores are another source.
– JPhi1618
2 days ago
Do you need galvanized? Big box stores do sell grade 5 and grade 8 bolts. Auto parts stores are another source.
– JPhi1618
2 days ago
I don't need galvanized; that's just where they sent me when I said I needed Grade 5.
– RustyShackleford
2 days ago
I don't need galvanized; that's just where they sent me when I said I needed Grade 5.
– RustyShackleford
2 days ago
My assumption was that galvanized bolts are not graded and are low grade. Just go to an Ace or Lowes or Home Depot, but I'd be interested if anyone knows better about galvanized.
– JPhi1618
2 days ago
My assumption was that galvanized bolts are not graded and are low grade. Just go to an Ace or Lowes or Home Depot, but I'd be interested if anyone knows better about galvanized.
– JPhi1618
2 days ago
Those places MIGHT have grade 5 hex bolts, but not carriage.
– RustyShackleford
2 days ago
Those places MIGHT have grade 5 hex bolts, but not carriage.
– RustyShackleford
2 days ago
|
show 3 more comments
2 Answers
2
active
oldest
votes
Highly unlikely that a Grade 5 bolt (90.000 psi yield, depending on size) would be galvanized. If electro-galvanizing were used there is a high risk of hydrogen cracking at that hardness level. If it were hot dip galvanized, the required temperature of about 800 F would temper the steel to a lower strength. This tempering affect can be fixed using alloy like chrome/moly, but now you have a pretty expensive bolt; not one available in a hardware store.
answered 2 days ago
blacksmith37blacksmith37
2,0313 silver badges9 bronze badges
I believe you. Disappointed at this store for being misinformed and/or untruthful. As I said, it's not a big-box store. It's a locally-owned outfit catering to professional builders and is usually top-notch in knowledge and service (and in price :-) )
– RustyShackleford
yesterday
add a comment |
I have not seen a carriage bolt in grade 5 or higher. If you want a bolt that will resist rusting then you should use grade 8 bolts. They are so hard that rusting is almost non existent.
answered 2 days ago
d.georged.george
6,5532 gold badges8 silver badges15 bronze badges
3
??? What has hardness got to do with rust resistance.
– Martin Bonner
yesterday
I'm not too worried about rust; somehow I've given that erroneous impression by mentioning galvanized bolts in my question.
– RustyShackleford
yesterday
At the risk of inappropriately mentioning a specific merchant, you can definitely get Grade 5 and 8 carriage bolts: boltdepot.com/Carriage_bolts.aspx
– RustyShackleford
yesterday
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Highly unlikely that a Grade 5 bolt (90.000 psi yield, depending on size) would be galvanized. If electro-galvanizing were used there is a high risk of hydrogen cracking at that hardness level. If it were hot dip galvanized, the required temperature of about 800 F would temper the steel to a lower strength. This tempering affect can be fixed using alloy like chrome/moly, but now you have a pretty expensive bolt; not one available in a hardware store.
answered 2 days ago
blacksmith37blacksmith37
2,0313 silver badges9 bronze badges
I believe you. Disappointed at this store for being misinformed and/or untruthful. As I said, it's not a big-box store. It's a locally-owned outfit catering to professional builders and is usually top-notch in knowledge and service (and in price :-) )
– RustyShackleford
yesterday
add a comment |
Highly unlikely that a Grade 5 bolt (90.000 psi yield, depending on size) would be galvanized. If electro-galvanizing were used there is a high risk of hydrogen cracking at that hardness level. If it were hot dip galvanized, the required temperature of about 800 F would temper the steel to a lower strength. This tempering affect can be fixed using alloy like chrome/moly, but now you have a pretty expensive bolt; not one available in a hardware store.
answered 2 days ago
blacksmith37blacksmith37
2,0313 silver badges9 bronze badges
I believe you. Disappointed at this store for being misinformed and/or untruthful. As I said, it's not a big-box store. It's a locally-owned outfit catering to professional builders and is usually top-notch in knowledge and service (and in price :-) )
– RustyShackleford
yesterday
add a comment |
Highly unlikely that a Grade 5 bolt (90.000 psi yield, depending on size) would be galvanized. If electro-galvanizing were used there is a high risk of hydrogen cracking at that hardness level. If it were hot dip galvanized, the required temperature of about 800 F would temper the steel to a lower strength. This tempering affect can be fixed using alloy like chrome/moly, but now you have a pretty expensive bolt; not one available in a hardware store.
answered 2 days ago
blacksmith37blacksmith37
2,0313 silver badges9 bronze badges
Highly unlikely that a Grade 5 bolt (90.000 psi yield, depending on size) would be galvanized. If electro-galvanizing were used there is a high risk of hydrogen cracking at that hardness level. If it were hot dip galvanized, the required temperature of about 800 F would temper the steel to a lower strength. This tempering affect can be fixed using alloy like chrome/moly, but now you have a pretty expensive bolt; not one available in a hardware store.
answered 2 days ago
blacksmith37blacksmith37
2,0313 silver badges9 bronze badges
edited yesterday
answered 2 days ago
blacksmith37blacksmith37
2,0313 silver badges9 bronze badges
answered 2 days ago
blacksmith37blacksmith37
2,0313 silver badges9 bronze badges
answered 2 days ago
blacksmith37blacksmith37
2,0313 silver badges9 bronze badges
2,0313 silver badges9 bronze badges
I believe you. Disappointed at this store for being misinformed and/or untruthful. As I said, it's not a big-box store. It's a locally-owned outfit catering to professional builders and is usually top-notch in knowledge and service (and in price :-) )
– RustyShackleford
yesterday
add a comment |
I believe you. Disappointed at this store for being misinformed and/or untruthful. As I said, it's not a big-box store. It's a locally-owned outfit catering to professional builders and is usually top-notch in knowledge and service (and in price :-) )
– RustyShackleford
yesterday
I believe you. Disappointed at this store for being misinformed and/or untruthful. As I said, it's not a big-box store. It's a locally-owned outfit catering to professional builders and is usually top-notch in knowledge and service (and in price :-) )
– RustyShackleford
yesterday
I believe you. Disappointed at this store for being misinformed and/or untruthful. As I said, it's not a big-box store. It's a locally-owned outfit catering to professional builders and is usually top-notch in knowledge and service (and in price :-) )
– RustyShackleford
yesterday
add a comment |
I have not seen a carriage bolt in grade 5 or higher. If you want a bolt that will resist rusting then you should use grade 8 bolts. They are so hard that rusting is almost non existent.
answered 2 days ago
d.georged.george
6,5532 gold badges8 silver badges15 bronze badges
3
??? What has hardness got to do with rust resistance.
– Martin Bonner
yesterday
I'm not too worried about rust; somehow I've given that erroneous impression by mentioning galvanized bolts in my question.
– RustyShackleford
yesterday
At the risk of inappropriately mentioning a specific merchant, you can definitely get Grade 5 and 8 carriage bolts: boltdepot.com/Carriage_bolts.aspx
– RustyShackleford
yesterday
add a comment |
I have not seen a carriage bolt in grade 5 or higher. If you want a bolt that will resist rusting then you should use grade 8 bolts. They are so hard that rusting is almost non existent.
answered 2 days ago
d.georged.george
6,5532 gold badges8 silver badges15 bronze badges
3
??? What has hardness got to do with rust resistance.
– Martin Bonner
yesterday
I'm not too worried about rust; somehow I've given that erroneous impression by mentioning galvanized bolts in my question.
– RustyShackleford
yesterday
At the risk of inappropriately mentioning a specific merchant, you can definitely get Grade 5 and 8 carriage bolts: boltdepot.com/Carriage_bolts.aspx
– RustyShackleford
yesterday
add a comment |
I have not seen a carriage bolt in grade 5 or higher. If you want a bolt that will resist rusting then you should use grade 8 bolts. They are so hard that rusting is almost non existent.
answered 2 days ago
d.georged.george
6,5532 gold badges8 silver badges15 bronze badges
I have not seen a carriage bolt in grade 5 or higher. If you want a bolt that will resist rusting then you should use grade 8 bolts. They are so hard that rusting is almost non existent.
answered 2 days ago
d.georged.george
6,5532 gold badges8 silver badges15 bronze badges
answered 2 days ago
d.georged.george
6,5532 gold badges8 silver badges15 bronze badges
answered 2 days ago
d.georged.george
6,5532 gold badges8 silver badges15 bronze badges
answered 2 days ago
d.georged.george
6,5532 gold badges8 silver badges15 bronze badges
6,5532 gold badges8 silver badges15 bronze badges
3
??? What has hardness got to do with rust resistance.
– Martin Bonner
yesterday
I'm not too worried about rust; somehow I've given that erroneous impression by mentioning galvanized bolts in my question.
– RustyShackleford
yesterday
At the risk of inappropriately mentioning a specific merchant, you can definitely get Grade 5 and 8 carriage bolts: boltdepot.com/Carriage_bolts.aspx
– RustyShackleford
yesterday
add a comment |
3
??? What has hardness got to do with rust resistance.
– Martin Bonner
yesterday
I'm not too worried about rust; somehow I've given that erroneous impression by mentioning galvanized bolts in my question.
– RustyShackleford
yesterday
At the risk of inappropriately mentioning a specific merchant, you can definitely get Grade 5 and 8 carriage bolts: boltdepot.com/Carriage_bolts.aspx
– RustyShackleford
yesterday
3
3
??? What has hardness got to do with rust resistance.
– Martin Bonner
yesterday
??? What has hardness got to do with rust resistance.
– Martin Bonner
yesterday
I'm not too worried about rust; somehow I've given that erroneous impression by mentioning galvanized bolts in my question.
– RustyShackleford
yesterday
I'm not too worried about rust; somehow I've given that erroneous impression by mentioning galvanized bolts in my question.
– RustyShackleford
yesterday
At the risk of inappropriately mentioning a specific merchant, you can definitely get Grade 5 and 8 carriage bolts: boltdepot.com/Carriage_bolts.aspx
– RustyShackleford
yesterday
At the risk of inappropriately mentioning a specific merchant, you can definitely get Grade 5 and 8 carriage bolts: boltdepot.com/Carriage_bolts.aspx
– RustyShackleford
yesterday
add a comment |
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I'm using these to hang an old-school Hunter ceiling fan, the kind that are cast iron and weigh about 50lb. With the poor quality of hardware I've seen recently, I think it's worth getting graded bolts. I can always order them from places like boltdepot, but I would like to source locally.
– RustyShackleford
2 days ago
Do you need galvanized? Big box stores do sell grade 5 and grade 8 bolts. Auto parts stores are another source.
– JPhi1618
2 days ago
I don't need galvanized; that's just where they sent me when I said I needed Grade 5.
– RustyShackleford
2 days ago
My assumption was that galvanized bolts are not graded and are low grade. Just go to an Ace or Lowes or Home Depot, but I'd be interested if anyone knows better about galvanized.
– JPhi1618
2 days ago
Those places MIGHT have grade 5 hex bolts, but not carriage.
– RustyShackleford
2 days ago