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Stainless hardware for bikes(13 posts)

Stainless hardware for bikesniteschaos
Mar 4, 2003 6:51 AM
I was wondering where I could get stainless screws for things like my seat post clamp and break hardware. I looked at the hardware store and didn't find anything close to spec.
Try "Loose Screws" maybeB2
Mar 4, 2003 6:54 AM

Mar 4, 2003 9:07 AM
McMaster-Carr has just about any metric socket head cap screw you could want. Bolts like M5 x 16mm are only about $6 for a box of 50 or 100. Larger bolts can be ordered individually.
Mar 4, 2003 10:10 AM
Thanks for the info C-40. I was looking for stainless steel screws to replace my broken Ti screws on my stem. Notice I said broken screws, they broke while I was riding, causing me to wipe out. I would recommend that everyone who is using Ti screws in the stem face plate replace them. The weight savings over steel is nill. IMO using lightweight Ti hardware in critical high stress areas, such as the stem, where there are only two 5mm screws being exposed to a lot of torque and to the elements, is a bad idea. I now have a broken finger to prove it.
fix for a broken stem...Spunout
Mar 4, 2003 11:21 AM
Looks like a work of art ! ( nm )Andy
Mar 5, 2003 3:22 PM
Did the heads shear off? nmPdxMark
Mar 4, 2003 12:35 PM
Did the heads shear off? nmrogue_CT1
Mar 4, 2003 5:16 PM
On my first one the Ti screws broke while I was riding, causing me to crash. They broke right in the middle of the screws. I bought a new stem identical to the old one. I used it for the first time yesterday. Today I was adjusting my handlebars and I began to tighten the screws for the face plate with a torque wrench using the recommended setting. This time the screw ripped the threads right out of the stem. I found a recall for the stem which specifies both problems that I experienced. I am hoping to get my money back. The stem is a 3T Zepp XL-----BEWARE!!!!! The manufacture specifies in the recall that the Ti screws should be replaced with steel ones also the counter-sunk holes in the face plate were not made deep enough causing the screws to strip out. They are replacing the face plate as well.
Mar 4, 2003 1:11 PM
I purchased stainless steel screws at a marine supply store. I used them for a bicycle rack. I do not know whether they are strong enough for a stem, so therefore make no recommendation.

re: Stainless for bikesMR_GRUMPY
Mar 4, 2003 2:06 PM
Stainless isn't as strong as high carbon steel, so be careful what you use them for. likewise, stainless chains can't ever be as strong as steel chains. They have less than 20% of the max allowable load of plain steel chains.
Didn't have forging my own chain in mind, but.....niteschaos
Mar 5, 2003 5:06 AM
the clamp bolt on my seat post was rusting a bit and I wanted to replace it before I could strip it trying to replace it. Also, knowing the torque on a bolt and the thread pattern, you should be able to calculate the amount of strain on the bolt right (knowing cross-sectional area)? And knowing the Modulus of the material, you should be able to calculate whether 18-8 stainless is strong enough to use for the application, right?
strong enough....C-40
Mar 5, 2003 5:55 AM
I got out an M5 x 16 stainless bolt,placed a stack of washers on it and screwed it into an M5 nut. I deliberately tried to break or strip the threads. With a 4-5-6 Y-shaped wrench, there's no way that you'll break or strip one of these bolts. I tried an extra-long hex wrench and was able to twist the bolt a bit, but it still never broke. You'd have to be a complete idiot to break or strip one.
Stainless hardware for Lowe's and Home Depot....davet
Mar 4, 2003 4:07 PM
Both of them often have a well stocked metric fastener department. If you are not sure what you need, take a sample of the fastener with you. You can also find metric stainless fasteners at better hardware stores.