I do mostly use good adapters to bnc, but really, as I tighten to snug, then 
wiggle, the barrel turns farther, each time I wiggle. I think the points nestle 
down in the grooves a surprising amount. Try it.

Chuck Jack 
KE9UW

Sent from my iPhone, cjack 

> On May 1, 2019, at 1:36 PM, Bob McGraw K4TAX <rmcg...@blomand.net> wrote:
> 
> Yes but those are  Amphenol connectors.   Many "good looking" connectors  we 
> buy today have really poor plating and poor machining tolerances.   Thus all 
> "look alike" connectors aren't the same.   10 in a bag for $10..........no 
> thank you.
> 
> 73
> 
> Bob, K4TAX
> 
> 
>> On 5/1/2019 1:32 PM, Michael Blake via Elecraft wrote:
>> I agree with your process Chuck. I have never read an Amphenol document that 
>> suggests anything other than hand tight.
>> 
>> Since the barrel is knurled and has no flats for a wrench it seems certain 
>> that a wrench was not what the designer had in mind.
>> 
>> 73 - Mike - K9JRI
>> 
>> 
>> 
>>> On May 1, 2019, at 2:19 PM, hawley, charles j jr <c-haw...@illinois.edu> 
>>> wrote:
>>> 
>>> I don’t tighten pl259s with pliers. I wiggle the plug so it sets into the 
>>> mating grooves while tightening it with my fingers and never had them get 
>>> loose. I think that’s where folks go wrong...when the plug doesn’t set into 
>>> the grooves. I almost need pliers to remove the plug when disconnecting it. 
>>> At least 60 years so far this works...
>>> 
>>> Chuck Jack
>>> KE9UW
>>> 
>>> Sent from my iPhone, cjack
>>> 
>>>>> On May 1, 2019, at 11:46 AM, Jim Brown <j...@audiosystemsgroup.com> wrote:
>>>>> 
>>>>> On 5/1/2019 9:08 AM, Ron Durie wrote:
>>>>> Tightening inside PL259's with pliers is not desirable, because each Hams
>>>>> definition of "SNUG" occurs at different Torque levels.
>>>>> I want to use my hands to screw them on and off.
>>>> You may like that, but mother nature likes them tight. And she always wins.
>>>>>  Also, when you have SO239 chassis mounted "Round" connectors (using one
>>>>> large lock washer), then pliers will loosen them every time.
>>>> I'd call that equipment junk.
>>>> 
>>>> 73, Jim K9YC
>>>> 
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