Shear Bolt Question - Snowblower Forum : Snow Blower Forums
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post #1 of 25 Old 12-14-2014, 05:05 PM Thread Starter
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Question Shear Bolt Question

This may have been covered already but what grade of bolt are shear bolts? Can I buy them at the local hardware store? Or are they usually ordered from the manufacturer?

Thanks

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post #2 of 25 Old 12-14-2014, 05:13 PM
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Max
Don't use anything that isn't a bona fide shear bolt. Why? Because if it doesn't fail as it should under load, you will ruin your gearbox gears. That is expensive and a pain to remedy. Shear bolts are very cheap by comparison. MH

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post #3 of 25 Old 12-14-2014, 05:14 PM
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you can get those things at your friendly neighborhood hardware store.

Long LIVE THE POWERSHIFT!! MAY IT NEVER RUST IN PEACE!!
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post #4 of 25 Old 12-14-2014, 05:17 PM Thread Starter
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I just repaired a gear box that was destroyed by a non shear bolt install. Thats why I ask. I need to replace the 2 bolts on that auger and buy a few spares for my ford.

I was just wanting specifics before heading off to the hardware store. Sometimes you get the new guy who doesnt know much.

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post #5 of 25 Old 12-14-2014, 05:19 PM
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shear bolts are NOT bolts. They are very soft steel.. softer than any grade at store. Most hardware stores do carry snow blower parts and do usually have the shear bolts by the blower parts. They are not all the same- you need the right space between the grooves according to diameter of your auger (rake) axles. Some don't have the grooves too. To be safe.. Just go to the dealer and get the ones called for your blower. The gear box will most likely get broken if use anything other than whats' required. I hope this helps. P.S. I've seen the wrong shear bolts in the wrong slots at the hardware store even though the slot was labled for certain model.. People take out put back in wrong space. Buying at Hardware is ok but if getting them there make sure they are right ones according to chart.

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post #6 of 25 Old 12-14-2014, 05:22 PM Thread Starter
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Copy. I need some for my Ford and some for a old craftsman. Our sears is a bunch of idiots so who knows what they have. The ford, no idea where to even start.

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post #7 of 25 Old 12-15-2014, 04:03 AM
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Originally Posted by TOTHEMAX View Post
Copy. I need some for my Ford and some for a old craftsman. Our sears is a bunch of idiots so who knows what they have. The ford, no idea where to even start.
If the Ford was made by Gilson then here they are. Gilson built models begin with 09GN.......... If Jacobsen supplied the unit good luck. Beyond that I don't know.

They are specialized. Things like shear strength and how cleanly they break are designed into the part.

Pete
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post #8 of 25 Old 12-15-2014, 06:22 AM
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Preface: I am not a bolt expert. Just have an opinion like everyone else

Someone (I think on this forum) cross referenced the Honda snowblower shear bolt number 95701-06016-00 and found that the bolt is used on Honda automobiles, motorcycles, outboard motors, motors, etc. It's a metric grade 8.8.

IMHO: Metric grade 8.8 = SAE Grade 5. Going with a Grade 2 may seem safer (they are softer) but because they are soft they do not shear cleanly (may be more difficult to remove from housing).

Save yourself some money…buy a box at your local hardware store. I go through several a year ….mostly eating buried newspapers and a few walkway lights.

Kindest
Kevin
Honda HS 1132

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post #9 of 25 Old 12-15-2014, 07:51 AM
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my own opinion here.. But I highly recommend you not use grade 5 bolt. I've seen a couple gear boxes trashed due too regular bolts used instead of a shear bolts. Those gear boxes can be pricy to fix and a pain in the arse to do them. Everyone their own but for the cost of shear bolts and how many you'll use in the life of the blower- I'd just go get what it calls for and be done. just my 2 cents.
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post #10 of 25 Old 12-15-2014, 11:12 AM Thread Starter
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If the Ford was made by Gilson then here they are. Gilson built models begin with 09GN.......... If Jacobsen supplied the unit good luck. Beyond that I don't know.

They are specialized. Things like shear strength and how cleanly they break are designed into the part.

Pete
Thanks. I was told its a jacobsen

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