What Gauge Bolts For Jigs - Router Forums

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post #1 of 13 (permalink) Old 01-10-2017, 08:35 AM Thread Starter
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What Gauge Bolts For Jigs

What gauge hex and carriage bolts do you typically use for your woodworking jigs. Not heavy duty construction connections. More like the stuff for hold downs, slot and T track type attachments. I've seen design instructions that use 3/8" bolts but based on strength charts 1/4" would have been strong enough. Is it the appearance of more strength?
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post #2 of 13 (permalink) Old 01-10-2017, 08:41 AM
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1/4'' grade 5 will work quite well....
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post #3 of 13 (permalink) Old 01-10-2017, 08:56 AM Thread Starter
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1/4'' grade 5 will work quite well....
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post #4 of 13 (permalink) Old 01-10-2017, 09:41 AM
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6M, 10-24, 1/4-20, & the oak frame is held together with 5/16-18. It's application dependent.
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post #5 of 13 (permalink) Old 01-10-2017, 01:28 PM
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1/4" is usually good enough and usually cheaper because of being so plentiful but as Pat says, it can be application dependent. Rarely is strength that much of an issue.
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post #6 of 13 (permalink) Old 01-10-2017, 01:54 PM
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Mostly 1/4 and 5/16
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post #7 of 13 (permalink) Old 01-10-2017, 02:47 PM
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Quote:
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Mostly 1/4 and 5/16
Mee too.
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post #8 of 13 (permalink) Old 01-10-2017, 02:49 PM
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post #9 of 13 (permalink) Old 01-10-2017, 02:53 PM
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Grade 3, IMHO, would be OK. Grade V is somewhat overkill. For my use, 1/4-20 is used for T-Track and other things.
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post #10 of 13 (permalink) Old 01-11-2017, 09:46 AM
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I use 1/4" bolts for jigs and fixtures . Here in the US I find the best place to buy bolts is Tractor Supply Co. They sell bolts in Bulk by the pound. They have grade 3 through grade 8 bolts at very reasonable prices compared to the big box stores.
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