Bonnet Nut


Model#: RP1050SS
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Finish: Stainless
List Price (US $):


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Product Support, Repair Parts & Technical Specifications

Installation Information

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I'm not sure of the series of faucet I have in my shower. But i purchased the rp50 which is to small. Is the rp1050 I may need for my older unit?

Asked by: Nate35
Hi, Nate35! Thanks for your question! To better assist you with this inquiry, please contact our Delta Customer Service line at (800)345-3358. We are available Monday-Friday, 7am-7pm, CST and Saturday, 8am-5pm, CST. You may also email at Best Regards, Rosanna
Answered by: DeltaFaucet11
Date published: 2018-04-03

What are the dimensions? Will this fit a shower faucet?

I have a house built in the '80s and need to replace the bonnet nut on the shower faucet (which has a knob and a ball). Can't find the exact bonnet nut anywhere but this one looks pretty similar. Dimensions, please? thx.
Asked by: BDor
Hi BDor, Thank you for your question. If your shower has a ball assembly, you have a 600 series unit. This cap will work with any Delta 600 series shower. The cap is 1 11/16" in diameter, and the opening is 1 1/16". Best regards, Jon
Answered by: DeltaFaucet3
Date published: 2018-03-19

I am looking for a PN Rp1050 in flat black?

Asked by: Ken M
Hi Ken M, Thank you for your question! We do not manufacture the RP1050 cap assembly in a flat black finish. Best regards, Brandis
Answered by: DeltaFaucet7
Date published: 2016-07-18

Is the Pearl Nickel finish available?

I have the Waterfall Single-Handle Kitchen Faucet Model 172 in Pearl Nickel. I need a replacement Bonnet Nut, is one available?
Asked by: Mygraine
Hi Mygraine, Thank you for your question! The RP1050NN cap assembly is no longer available in the Pearl Nickel finish. The closest finish we have is the Brushed Stainless Steel finish. The part number would be RP1050SS. Best regards, Brandis
Answered by: DeltaFaucet7
Date published: 2016-05-24

What socket fits this nut?

I'm having trouble getting the nut off. I have hard water and there is calcium buildup on the threads, etc. I can't get it off with channel lock pliers or with a monkey wrench. These faucets came with my house I bought last November. Thanks, Mark
Asked by: Mark
It was a little tricky but I sealed the gap between the bonnet and the faucet body base with strips of packing tape except for a small area in the back (the high side) so I could carefully apply Liquid Wrench to my bonnet threads. I applied several small applications over the course of 3 days to help loosen the potential build-up and corrosion on the cap threads (apply this on the bottom only, not the top where the plastic adjustment ring is under the handle...that won't help this!#. I purchased a 33mm 6-point deep socket #1/2" drive) at my local auto parts store and it fit this bonnet hex head perfectly. Using a 1/2" drive breaker bar, the bonnet cap came right off with little effort, no scaring or damage to the chrome finish. Btw, someone else here in another post notes using a 34mm socket but I found that was too loose for my bonnet cap. In my case, the 33mm 6-point socket was a perfect fit.
Answered by: ChuckM
Date published: 2015-05-30

brushed nickel finish?

Has this faucet ever been available in a "Brushed Nickel" finish? Trying to match a replacement RP1050 - thanks
Asked by: rusty66
Hi Rusty, Thank you for your question. The RP1050 has never been offered in the brushed nickel finish. The (SS) brilliance stainless finish of the RP1050SS is a brushed finish similar to other brands brushed nickel. Thanks, Dave
Answered by: DeltaFaucet2
Date published: 2015-03-02

Does the Bonnet Nut come with two o-rings attached?

Asked by: bigyak
Hi Bigyak, Thank you for your question. The RP1050 bonnet nut includes an anti-seize ring but not 2 o-rings. Thanks, Dave
Answered by: DeltaFaucet2
Date published: 2015-01-27

dose a rp1050rb fit a model#155

Asked by: merzzie
Hi Merzzie, Thank you for your question. Delta Faucet model # RP1050RB is not designed to fit the 155 kitchen faucet. If you are looking for the bonnet on the 155 for underneath the handle, it is model # RP51503. Thanks. Jody
Answered by: Delta1
Date published: 2015-02-03
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