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#1
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Question about Metric Threads...
Ordered some metric bolts from McMaster...
Received them and noticed they are marked as follows: M16 bolt, 1.5 pitch has "Metric 8.8" shown on the top of the hex and on McMaster's paperwork. M16 bolt, 2.0 pitch has "Metric 10.9" shown on the top of the hex and on McMaster's paperwork. For the life of me, I can't figure out what those 8.8 and 10.9 refer to. Anyone know? Thanks for any help you can offer. Regards, Joe Agro, Jr. (800) 871-5022 01.908.542.0244 Automatic / Pneumatic Drills: http://www.AutoDrill.com Multiple Spindle Drills: http://www.Multi-Drill.com Production Tapping: http://Production-Tapping-Equipment.com/ Flagship Site: http://www.Drill-N-Tap.com VIDEOS: http://www.youtube.com/user/AutoDrill TWITTER: http://twitter.com/AutoDrill FACEBOOK: http://tinyurl.com/AutoDrill-Facebook V8013-R |
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#2
Posted to rec.crafts.metalworking
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Question about Metric Threads...
In article , "Joe AutoDrill" wrote:
Ordered some metric bolts from McMaster... Received them and noticed they are marked as follows: M16 bolt, 1.5 pitch has "Metric 8.8" shown on the top of the hex and on McMaster's paperwork. M16 bolt, 2.0 pitch has "Metric 10.9" shown on the top of the hex and on McMaster's paperwork. For the life of me, I can't figure out what those 8.8 and 10.9 refer to. Anyone know? They're grade markings, approximately equivalent to SAE Grades 5 and 8 respectively. http://www.sizes.com/tools/bolts_metric_standards.htm |
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#3
Posted to rec.crafts.metalworking
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Question about Metric Threads...
"Doug Miller" wrote in message
... They're grade markings, approximately equivalent to SAE Grades 5 and 8 respectively. http://www.sizes.com/tools/bolts_metric_standards.htm Thanks Doug. Perfect information and appreciated. -- Regards, Joe Agro, Jr. (800) 871-5022 01.908.542.0244 Automatic / Pneumatic Drills: http://www.AutoDrill.com Multiple Spindle Drills: http://www.Multi-Drill.com Production Tapping: http://Production-Tapping-Equipment.com/ Flagship Site: http://www.Drill-N-Tap.com VIDEOS: http://www.youtube.com/user/AutoDrill TWITTER: http://twitter.com/AutoDrill FACEBOOK: http://tinyurl.com/AutoDrill-Facebook V8013-R |
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#4
Posted to rec.crafts.metalworking
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Question about Metric Threads...
strength (grade) of bolts
On 2011-02-16, Joe AutoDrill wrote: Ordered some metric bolts from McMaster... Received them and noticed they are marked as follows: M16 bolt, 1.5 pitch has "Metric 8.8" shown on the top of the hex and on McMaster's paperwork. M16 bolt, 2.0 pitch has "Metric 10.9" shown on the top of the hex and on McMaster's paperwork. For the life of me, I can't figure out what those 8.8 and 10.9 refer to. Anyone know? Thanks for any help you can offer. Regards, Joe Agro, Jr. (800) 871-5022 01.908.542.0244 Automatic / Pneumatic Drills: http://www.AutoDrill.com Multiple Spindle Drills: http://www.Multi-Drill.com Production Tapping: http://Production-Tapping-Equipment.com/ Flagship Site: http://www.Drill-N-Tap.com VIDEOS: http://www.youtube.com/user/AutoDrill TWITTER: http://twitter.com/AutoDrill FACEBOOK: http://tinyurl.com/AutoDrill-Facebook V8013-R |
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#5
Posted to rec.crafts.metalworking
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Question about Metric Threads...
Doug Miller wrote:
In article , "Joe AutoDrill" wrote: Ordered some metric bolts from McMaster... Received them and noticed they are marked as follows: M16 bolt, 1.5 pitch has "Metric 8.8" shown on the top of the hex and on McMaster's paperwork. M16 bolt, 2.0 pitch has "Metric 10.9" shown on the top of the hex and on McMaster's paperwork. For the life of me, I can't figure out what those 8.8 and 10.9 refer to. Anyone know? They're grade markings, approximately equivalent to SAE Grades 5 and 8 respectively. http://www.sizes.com/tools/bolts_metric_standards.htm it's interesting that metric assholes can't handle fractions withouth crying little bitches, but requiring multiple numbers and periods to mark bolt grades is completely OK. idiots. |
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#6
Posted to rec.crafts.metalworking
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Question about Metric Threads...
"Cydrome Leader" wrote in message ... (snip) it's interesting that metric assholes can't handle fractions withouth crying little bitches, but requiring multiple numbers and periods to mark bolt grades is completely OK. idiots. I think it was MAD TV that had a hilarious sketch about a jerk who used nothing but online gamer trash talk in real life. It is scary how similar you seem to that guy. In any case, please enlighten us about your ideal bolt grading system and why it is better than the metric standard where you can know the bolt strength without looking it up in a table. Also how is it you became more of an expert on bolt grading than all the engineers on the standards committee? |
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#7
Posted to rec.crafts.metalworking
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Question about Metric Threads...
anorton wrote:
"Cydrome Leader" wrote in message ... (snip) it's interesting that metric assholes can't handle fractions withouth crying little bitches, but requiring multiple numbers and periods to mark bolt grades is completely OK. idiots. I think it was MAD TV that had a hilarious sketch about a jerk who used nothing but online gamer trash talk in real life. It is scary how similar you seem to that guy. Oh no, I'm quite upset now. In any case, please enlighten us about your ideal bolt grading system and why it is better than the metric standard where you can know the bolt strength without looking it up in a table. Also how is it you became more of an expert on bolt grading than all the engineers on the standards committee? Nothing but the finest of ideas come from a european standards committee. |
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#8
Posted to rec.crafts.metalworking
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Question about Metric Threads...
"anorton" wrote in message
m... "Cydrome Leader" wrote in message ... (snip) it's interesting that metric assholes can't handle fractions withouth crying little bitches, but requiring multiple numbers and periods to mark bolt grades is completely OK. idiots. I think it was MAD TV that had a hilarious sketch about a jerk who used nothing but online gamer trash talk in real life. It is scary how similar you seem to that guy. In any case, please enlighten us about your ideal bolt grading system and why it is better than the metric standard where you can know the bolt strength without looking it up in a table. Also how is it you became more of an expert on bolt grading than all the engineers on the standards committee? I must have Cydrome Leader blocked because I see your reply and his text above it but the useless rant never made it to my reader in its original form. Regards, Joe Agro, Jr. (800) 871-5022 01.908.542.0244 Automatic / Pneumatic Drills: http://www.AutoDrill.com Multiple Spindle Drills: http://www.Multi-Drill.com Production Tapping: http://Production-Tapping-Equipment.com/ Flagship Site: http://www.Drill-N-Tap.com VIDEOS: http://www.youtube.com/user/AutoDrill TWITTER: http://twitter.com/AutoDrill FACEBOOK: http://tinyurl.com/AutoDrill-Facebook V8013-R |
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#9
Posted to rec.crafts.metalworking
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Question about Metric Threads...
Joe AutoDrill wrote:
"anorton" wrote in message m... "Cydrome Leader" wrote in message ... (snip) it's interesting that metric assholes can't handle fractions withouth crying little bitches, but requiring multiple numbers and periods to mark bolt grades is completely OK. idiots. I think it was MAD TV that had a hilarious sketch about a jerk who used nothing but online gamer trash talk in real life. It is scary how similar you seem to that guy. In any case, please enlighten us about your ideal bolt grading system and why it is better than the metric standard where you can know the bolt strength without looking it up in a table. Also how is it you became more of an expert on bolt grading than all the engineers on the standards committee? I must have Cydrome Leader blocked because I see your reply and his text above it but the useless rant never made it to my reader in its original form. Regards, Joe Agro, Jr. (800) 871-5022 01.908.542.0244 Automatic / Pneumatic Drills: http://www.AutoDrill.com Multiple Spindle Drills: http://www.Multi-Drill.com Production Tapping: http://Production-Tapping-Equipment.com/ Flagship Site: http://www.Drill-N-Tap.com VIDEOS: http://www.youtube.com/user/AutoDrill TWITTER: http://twitter.com/AutoDrill FACEBOOK: http://tinyurl.com/AutoDrill-Facebook V8013-R I can't SEE you! Regards, Cydrome Leader, Sr. (800) 871-5022 telemarkting cold call hotline 01.908.542.0244 (grade of metric bolts) Chinese Slave Labor / Defective Pneumatic Drills: http://www.AutoDrill.com Multiple Spindle Drills: http://www.Multi-Drill.com Chinese Leaded food products Production Tapping: http://Production-Tapping-Equipment.com/ Counterfeit software : http://www.Drill-N-Tap.com NAKED VIDEOS: http://www.youtube.com/user/AutoDrill Democratic Party TWITTER: http://twitter.com/AutoDrill FACEBOOK: http://tinyurl.com/AutoDrill-Facebook V8014-R |
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#10
Posted to rec.crafts.metalworking
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Question about Metric Threads...
Joe AutoDrill wrote:
Ordered some metric bolts from McMaster... Received them and noticed they are marked as follows: M16 bolt, 1.5 pitch has "Metric 8.8" shown on the top of the hex and on McMaster's paperwork. M16 bolt, 2.0 pitch has "Metric 10.9" shown on the top of the hex and on McMaster's paperwork. For the life of me, I can't figure out what those 8.8 and 10.9 refer to. Anyone know? Thanks for any help you can offer. Regards, Joe Agro, Jr. (800) 871-5022 01.908.542.0244 Automatic / Pneumatic Drills: http://www.AutoDrill.com Multiple Spindle Drills: http://www.Multi-Drill.com Production Tapping: http://Production-Tapping-Equipment.com/ Flagship Site: http://www.Drill-N-Tap.com VIDEOS: http://www.youtube.com/user/AutoDrill TWITTER: http://twitter.com/AutoDrill FACEBOOK: http://tinyurl.com/AutoDrill-Facebook V8013-R Joe That is the hardness grade of the bolt similar to a grade 8 marking or a grade 5. John |
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#11
Posted to rec.crafts.metalworking
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Question about Metric Threads...
On 2011-02-16, Joe AutoDrill wrote:
Ordered some metric bolts from McMaster... Received them and noticed they are marked as follows: M16 bolt, 1.5 pitch has "Metric 8.8" shown on the top of the hex and on McMaster's paperwork. M16 bolt, 2.0 pitch has "Metric 10.9" shown on the top of the hex and on McMaster's paperwork. For the life of me, I can't figure out what those 8.8 and 10.9 refer to. Anyone know? They are the equivalent to the grade markings on US bolts (the radial lines show the grade there, while the metric ones use grades specified as a short decimal number. This web site (and others, of course) has a table filling in all of that information -- scroll down near the bottom: http://euler9.tripod.com/bolt-database/22.html But in specific, according to that table: 8.8 medium carbon steel, quenched and tempered 10.9 medium carbon steel, quenched and tempered or 10.9 medium carbon alloy steel, quenched and tempered or 10.9 low carbon boron steel, quenched and tempered depending on size (there is quite a bit of overlap). At M16, it could be any of the three. Look up the chart, as there are various other things included. Among other things, the test strength of your 10.9 is a lot higher than your 8.8. (Of course you may not need all that strength, but just in case. :-) Enjoy, DoN. -- Remove oil spill source from e-mail Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
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