logoalt Hacker News

cageyyesterday at 8:00 PM1 replyview on HN

> 25 thousandths would be sloppy, a nominal clearance hole for a 1/4x20 bolt is about that much.

Isn't that 0.250 which would be 250 thousandths?


Replies

teraflopyesterday at 10:07 PM

No, they're talking about the clearance, which is the difference between the diameter of the bolt itself (1/4") and the diameter of a hole in which the bolt loosely fits (a couple hundredths of an inch bigger than that).