Wilsons Sandbox
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On Fri, Nov 24, 2017 at 1:53 AM, Graham Knight graham.knight5@gmail.com [mg-tabc]mg-tabc-noreply@yahoogroups.com> wrote: Hi, I occasionally make use of stainless steel bolts on my car - mostly bought from http://stigfasteners.easywebstore.co.uk/. I can find nothing on their site about precisely what grade of SS is used. Are SS bolts generally as strong as high-tensile steel? 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On Fri, Nov 24, 2017 at 9:31 AM, 'M. P.' imabystander@yahoo.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: [u][/u] Graham: Norman has you pretty much spot on with his comments on this subject. I would add that if your UK supplier does not state the type or grade of SS they are selling you thst the hardware is pretty much for holding panel in place or as decorative hardware. There are different grades of SS in different strengths but no ally you won't find anything better than a grade 5. Grade 8 is available but limited in availability and selections. If I were you, I'd tend to follow Norm's advice. Sent from Yahoo Mail on Android On Fri, Nov 24, 2017 at 1:53 AM, Graham Knight graham.knight5@gmail.com [mg-tabc]mg-tabc-noreply@yahoogroups.com> wrote: Hi, I occasionally make use of stainless steel bolts on my car - mostly bought from http://stigfasteners. easywebstore.co.uk/. I can find nothing on their site about precisely what grade of SS is used. Are SS bolts generally as strong as high-tensile steel? Graham
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#ygrps-yiv-1023081493yiv4207112651ygrp-text tt { font-size:120%;} #ygrps-yiv-1023081493 #ygrps-yiv-1023081493yiv4207112651 #ygrps-yiv-1023081493yiv4207112651ygrp-vital ul li:last-child { border-right:none !important;} #ygrps-yiv-1023081493[u][/u] Graham: Norman has you pretty much spot on with his comments on this subject. I would add that if your UK supplier does not state the type or grade of SS they are selling you thst the hardware is pretty much for holding panel in place or as decorative hardware. There are different grades of SS in different strengths but no ally you won't find anything better than a grade 5. Grade 8 is available but limited in availability and selections. If I were you, I'd tend to follow Norm's advice. Sent from Yahoo Mail on Android On Fri, Nov 24, 2017 at 1:53 AM, Graham Knight graham.knight5@gmail.com [mg-tabc]mg-tabc-noreply@yahoogroups.com> wrote: Hi, I occasionally make use of stainless steel bolts on my car - mostly bought from http://stigfasteners. easywebstore.co.uk/. I can find nothing on their site about precisely what grade of SS is used. Are SS bolts generally as strong as high-tensile steel? Graham
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#ygrps-yiv-1959886977yiv4207112651ygrp-text tt { font-size:120%;} #ygrps-yiv-1959886977 #ygrps-yiv-1959886977yiv4207112651 #ygrps-yiv-1959886977yiv4207112651ygrp-vital ul li:last-child { border-right:none !important;} #ygrps-yiv-1959886977The beauty of stainless is that you can take a stainless bolt and with nothing more than a bench grinder, sandpaper and buffer, turn it into an oval head slotted windshield plinth bolt in a short time. All those pesky, rather pricey, chrome plated bolts can be turned out without much trouble at all and they don't rust or corrode. Steve TC2911 From: "Roger Furneaux roger.46tc@gmail.com [mg-tabc]" mg-tabc-noreply@yahoogroups.com [b]To:[/b] imabystander@yahoo.com imabystander@yahoo.com [b]Cc:[/b] mg-tabc-noreply@yahoogroups.com mg-tabc-noreply@yahoogroups.com; mg-tabc@yahoogroups.com mg-tabc@yahoogroups.com [b]Sent:[/b] Friday, November 24, 2017 7:04 AM [b]Subject:[/b] Re: [mg-tabc] Strength of stainless bolts I don't think you will find stainless steel bolts in strength grades, only as A2 or A4, which refers to their corrosion resistance. SS is banned (don't know if it is actually enshrined in EU law) from being used in any safety related situations: apart from lack of ternsile strength it also suffers from work-hardening (maybe John Kallend can tell us more about this - are you there John?). On our cars, the only obvious places to use them are holding the running-boards, and in places where a chrome-plated brass screw was used originally (such as the dashboard). Polished SS looks as good as chrome and will never tarnish. FYI I keep good stocks of every bolt and stud used on our cars in zinc-plated HT steel and some SS. oc[b]T[/b]agonally Roger On Fri, Nov 24, 2017 at 9:31 AM, 'M. P.' imabystander@yahoo.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: Graham: Norman has you pretty much spot on with his comments on this subject. I would add that if your UK supplier does not state the type or grade of SS they are selling you thst the hardware is pretty much for holding panel in place or as decorative hardware. There are different grades of SS in different strengths but no ally you won't find anything better than a grade 5. Grade 8 is available but limited in availability and selections. If I were you, I'd tend to follow Norm's advice. Sent from Yahoo Mail on Android On Fri, Nov 24, 2017 at 1:53 AM, Graham Knight graham.knight5@gmail.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: Hi, I occasionally make use of stainless steel bolts on my car - mostly bought from http://stigfasteners. easywebstore.co.uk/. I can find nothing on their site about precisely what grade of SS is used. Are SS bolts generally as strong as high-tensile steel? Graham
On Fri, Nov 24, 2017 at 1:53 AM, Graham Knight graham.knight5@gmail.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: Hi, I occasionally make use of stainless steel bolts on my car - mostly bought from http://stigfasteners.easywebstore.co.uk/. I can find nothing on their site about precisely what grade of SS is used. Are SS bolts generally as strong as high-tensile steel? 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I don't think you will find stainless steel bolts in strength grades, only as A2 or A4, which refers to their corrosion resistance. SS is banned (don't know if it is actually enshrined in EU law) from being used in any safety related situations: apart from lack of ternsile strength it also suffers from work-hardening (maybe John Kallend can tell us more about this - are you there John?). On our cars, the only obvious places to use them are holding the running-boards, and in places where a chrome-plated brass screw was used originally (such as the dashboard). Polished SS looks as good as chrome and will never tarnish. FYI I keep good stocks of every bolt and stud used on our cars in zinc-plated HT steel and some SS. oc[b]T[/b]agonally Roger On Fri, Nov 24, 2017 at 9:31 AM, 'M. P.' imabystander@yahoo.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: [u][/u] Graham: Norman has you pretty much spot on with his comments on this subject. I would add that if your UK supplier does not state the type or grade of SS they are selling you thst the hardware is pretty much for holding panel in place or as decorative hardware. There are different grades of SS in different strengths but no ally you won't find anything better than a grade 5. Grade 8 is available but limited in availability and selections. If I were you, I'd tend to follow Norm's advice. Sent from Yahoo Mail on Android On Fri, Nov 24, 2017 at 1:53 AM, Graham Knight graham.knight5@gmail.com [mg-tabc]mg-tabc-noreply@yahoogroups.com> wrote: Hi, I occasionally make use of stainless steel bolts on my car - mostly bought from http://stigfasteners. easywebstore.co.uk/. I can find nothing on their site about precisely what grade of SS is used. Are SS bolts generally as strong as high-tensile steel? GrahamOn Friday , November 24 , 2017 06 : 04 : 13 AM CST, Roger Furneaux roger.46tc@gmail.com> wrote:
A-2 S/S is comparable to domestic 302 & 304 in corrosion resistance. A-4 is comparable to type 316 for CR. For higher strength, fatigue resistant, durable & tougher S/S fasteners, do not overlook ARP's "Stainless 300", 140k psi YS & 170-190k psi UTS.Their Custom 450 S/S is rated at 150k psi & 170k psi UTS. Suitable for head bolts. ARP's grade 5 = 90k psi YS, grade 8= 120k psi & 150k psi ARP 8740 chrome moly= 180k YS, 170-190k UTS. Differences in ratings due to different quality sub grades of 8740. Then there are the 17-4 PH & XM 19 series for applications requiring high mechanical & corrosion resistant properties, widely used in the marine hardware industry. BillTC 4926Sent from my iPad On Nov 24, 2017, at 9:33 AM, 'M. P.' imabystander@yahoo.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: Yep Roger, I stand corrected, although most sites offering SS fasteners list them according to their equivalency to Grade 3, 5, 8.8, 10.9 etc... McMaster Carr who is arguably one of the most common hardware suppliers in the States offers SS hardware in 18-8 Hardness B74 Tensile 70,000psi, 316 Hardness B70 Tensile 70,000psi, Alloy 20 Hardness B80 Tensile 80,000psi, A286 hardness C24 Tensile 130,000psi, HS 17-4PH Hardness C28 Tensile 130,000psi and 410 Hardness Grade 5 equiv The Grade 8 or better equivalent SS hardware typically is not in open stock but is specialty order to mainly the Chemical Industry where high corrosion resistance is required along with high strength. Ref: [b]SAE Grade 8[/b] bolt capability in yield (stretch) = 130,000 lbs / in2 , SAE Grade 8 bolt capability in tension (failure) = 150,000 lbs / in2, SAE Grade 5 bolt capability in yield (stretch) = 92,000 lbs / in2, SAE Grade 5 bolt capability in tension (failure) = 120,000 lbs / in2 Metric Class 8.8 tension 110,000psi , Metric Class 10.9 Tension = 150,000psi, Metric class 12.9 Tension = 174,000psiI wonder if there is a document available that gives the BSW/BSF head markings/strength identification by location on our cars and likewise the mad metric head markings by location on the mechanicals as well. That would be interesting as a comparison tool. Bottom line availability says that for low to medium strength applications SS is a viable option at the owners discretion...All others better to be safe than sorry.... On Friday , November 24 , 2017 06 : 04 : 13 AM CST, Roger Furneaux roger.46tc@gmail.com> wrote: I don't think you will find stainless steel bolts in strength grades, only as A2 or A4, which refers to their corrosion resistance. SS is banned (don't know if it is actually enshrined in EU law) from being used in any safety related situations: apart from lack of ternsile strength it also suffers from work-hardening (maybe John Kallend can tell us more about this - are you there John?). On our cars, the only obvious places to use them are holding the running-boards, and in places where a chrome-plated brass screw was used originally (such as the dashboard). Polished SS looks as good as chrome and will never tarnish. FYI I keep good stocks of every bolt and stud used on our cars in zinc-plated HT steel and some SS. oc[b]T[/b]agonally Roger On Fri, Nov 24, 2017 at 9:31 AM, 'M. P.' imabystander@yahoo.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: [u][/u] Graham: Norman has you pretty much spot on with his comments on this subject. I would add that if your UK supplier does not state the type or grade of SS they are selling you thst the hardware is pretty much for holding panel in place or as decorative hardware. There are different grades of SS in different strengths but no ally you won't find anything better than a grade 5. Grade 8 is available but limited in availability and selections. If I were you, I'd tend to follow Norm's advice. Sent from Yahoo Mail on Android On Fri, Nov 24, 2017 at 1:53 AM, Graham Knight graham.knight5@gmail.com [mg-tabc]mg-tabc-noreply@yahoogroups.com> wrote: Hi, I occasionally make use of stainless steel bolts on my car - mostly bought from http://stigfasteners. easywebstore.co.uk/. I can find nothing on their site about precisely what grade of SS is used. Are SS bolts generally as strong as high-tensile steel? GrahamOn Nov 24, 2017, at 11:01 AM, "Usaj24@earthlink.net" Usaj24@earthlink.net> wrote:
Sent from my iPad On Nov 24, 2017, at 11:01 AM, "Usaj24@earthlink.net" Usaj24@earthlink.net> wrote: A-2 S/S is comparable to domestic 302 & 304 in corrosion resistance. A-4 is comparable to type 316 for CR. For higher strength, fatigue resistant, durable & tougher S/S fasteners, do not overlook ARP's "Stainless 300", 140k psi YS & 170-190k psi UTS.Their Custom 450 S/S is rated at 150k psi & 170k psi UTS. Suitable for head bolts. ARP's grade 5 = 90k psi YS, grade 8= 120k psi & 150k psi ARP 8740 chrome moly= 180k YS, 170-190k UTS. Differences in ratings due to different quality sub grades of 8740. Then there are the 17-4 PH & XM 19 series for applications requiring high mechanical & corrosion resistant properties, widely used in the marine hardware industry. BillTC 4926Sent from my iPad On Nov 24, 2017, at 9:33 AM, 'M. P.' imabystander@yahoo.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: Yep Roger, I stand corrected, although most sites offering SS fasteners list them according to their equivalency to Grade 3, 5, 8.8, 10.9 etc... McMaster Carr who is arguably one of the most common hardware suppliers in the States offers SS hardware in 18-8 Hardness B74 Tensile 70,000psi, 316 Hardness B70 Tensile 70,000psi, Alloy 20 Hardness B80 Tensile 80,000psi, A286 hardness C24 Tensile 130,000psi, HS 17-4PH Hardness C28 Tensile 130,000psi and 410 Hardness Grade 5 equiv The Grade 8 or better equivalent SS hardware typically is not in open stock but is specialty order to mainly the Chemical Industry where high corrosion resistance is required along with high strength. Ref: [b]SAE Grade 8[/b] bolt capability in yield (stretch) = 130,000 lbs / in2 , SAE Grade 8 bolt capability in tension (failure) = 150,000 lbs / in2, SAE Grade 5 bolt capability in yield (stretch) = 92,000 lbs / in2, SAE Grade 5 bolt capability in tension (failure) = 120,000 lbs / in2 Metric Class 8.8 tension 110,000psi , Metric Class 10.9 Tension = 150,000psi, Metric class 12.9 Tension = 174,000psiI wonder if there is a document available that gives the BSW/BSF head markings/strength identification by location on our cars and likewise the mad metric head markings by location on the mechanicals as well. That would be interesting as a comparison tool. Bottom line availability says that for low to medium strength applications SS is a viable option at the owners discretion...All others better to be safe than sorry.... On Friday , November 24 , 2017 06 : 04 : 13 AM CST, Roger Furneaux roger.46tc@gmail.com> wrote: I don't think you will find stainless steel bolts in strength grades, only as A2 or A4, which refers to their corrosion resistance. SS is banned (don't know if it is actually enshrined in EU law) from being used in any safety related situations: apart from lack of ternsile strength it also suffers from work-hardening (maybe John Kallend can tell us more about this - are you there John?). On our cars, the only obvious places to use them are holding the running-boards, and in places where a chrome-plated brass screw was used originally (such as the dashboard). Polished SS looks as good as chrome and will never tarnish. FYI I keep good stocks of every bolt and stud used on our cars in zinc-plated HT steel and some SS. oc[b]T[/b]agonally Roger On Fri, Nov 24, 2017 at 9:31 AM, 'M. P.' imabystander@yahoo.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: [u][/u] Graham: Norman has you pretty much spot on with his comments on this subject. I would add that if your UK supplier does not state the type or grade of SS they are selling you thst the hardware is pretty much for holding panel in place or as decorative hardware. There are different grades of SS in different strengths but no ally you won't find anything better than a grade 5. Grade 8 is available but limited in availability and selections. If I were you, I'd tend to follow Norm's advice. Sent from Yahoo Mail on Android On Fri, Nov 24, 2017 at 1:53 AM, Graham Knight graham.knight5@gmail.com [mg-tabc]mg-tabc-noreply@yahoogroups.com> wrote: Hi, I occasionally make use of stainless steel bolts on my car - mostly bought from http://stigfasteners. easywebstore.co.uk/. I can find nothing on their site about precisely what grade of SS is used. Are SS bolts generally as strong as high-tensile steel? Graham[b]From:[/b] "Usaj24@earthlink.net" Usaj24@earthlink.net> [b]Date:[/b] November 24, 2017 at 11:04:54 AM EST [b]To:[/b] mg-tabc@yahoogroups.com [b]Subject:[/b] [b]Re: [mg-tabc] Strength of stainless bolts[/b]