Quote:
Originally Posted by cubs-n-bxrs
You can buy a bag of 25 1/4"x 1 1/2" coiled spirol pins from McMaster carr for about $12. I would not slam one of them larger pins in the coupling that is on the transmission end. Being a cheap skate will cost you in the long run. JUst saying.
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I didn't need a bag of 25 spiral pins. I just needed a couple of them and paying $8-$10 for shipping a couple of pins is absurd.
These aren't larger pins, they're just doubled up. One inside the other, the 1/4" pin is still within the min./max. dimensions given for a 1/4" roll pin. And, they still compress as required for the hole size. I hammered the small one into the other only because it fits snugly and it doesn't greatly increase the outer diameter of the 1/4" pin.
The minimum diameter of the 1/4" roll pin is listed at .258, wall thickness is .048. Subtract the wall thickness to find the inside of the 1/4" pin is .162", the exact same measurement as the outside diameter of the 5/32" roll pin which is listed as .167" max to .162" min.