[TR] How to tell the size of bolt or setscrew from the part number

Michael Porter mdporter at dfn.com
Wed Jun 17 16:02:24 MDT 2020


On 6/17/2020 2:48 PM, Chris Kantarjiev wrote:
> You're on the right track, but not quite right.
>
> The first time I saw this system explained was in TRF's TR250 manual.
>
> HU is a "set screw" - fully threaded.
> HB is a "bolt" - partially threaded.
> HN is a nut.
> JF is a jam nut (thin)
> LN is a slotted nut (castle nut)
> TN is a thin nyloc nut
> YN is a thick nyloc nut
> WL is a split lock washer
> WP is a plain (flat) washer


Hmm, I stand corrected on the B-L system.  I didn't think it had much 
rhyme or reason to it.  The S-T system, however, I think, is 
sequentially based.


Cheers.

-- 


Michael Porter
Roswell, NM


Never let anyone drive you crazy when you know it's within walking distance....




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