Parker 75 ballpoint pen - Plastic inner thread

[Udo]

After several Parker “51” fountain pens as well as Duofolds and ‘45’ fountain pens and ballpoint pens, I would like to try my hand at the last real Parker: the Parker “75”.

I world like to start with a ballpoint pen in Sterling Silver, almost new from 1983, made in the USA. It is almost in mint condition.

 

Let me ask you a question: Why does Parker equip such a “high-end” writing instrument with a plastic inner thread?

Are there any collectors here who can say something about the durability of the screw thread?

 

Many thanks in advance for any information.

 

Greetings, Udo

 

 

[IThinkIHaveAProblem]

oh, I would hazard a guess at the "why"...

$, $$ and $$$

 

As I don't have one myself, I will leave the question of durability to others

[welch]

I have a P-75 ballpoint in standard P-75 ciselle. The inner cap threads -- I think that's what you mean -- are plastic. The barrel, of course, is silver / steel. 

 

Why? 

 

I have a P-51 ballpoint, and once had a Parker 45 ballpoint. All Parker ballpoints were basically the Parker ("T-Ball") Jotter. Always had plastic inner threads. They have lasted a long time. They last and last. 

[TheRedBeard]

I've been using my P75 BP Flighter (stainless steel one) for many years as my EDC BP due to its durability and have never ever faced any problems with its threads.

It is pretty robust and reliable BP.

[TheRedBeard]

I've just checked threads on my P75 Flighter: both are metal (brass) ...