Tornillo de fijación y llave Allen

Hi, Fixitman! Thank you for your question. The Delta 21911 Faucet uses the RP25620 Set Screw. This can be loosened with a 3/32" Allen Wrench. The set screw size is #10-32 x .25. Best Regards, Rosanna

Hello IndyMom, Thank you for your question. The Allen Wrench and Set Screw RP52139 is designed for our sister company Brizo Sensori Thermostatic Shower Valve Trim kit. The set screw is used to attach the single handle to the valve cartridge stem. https://www.brizo.com/bath/product/content-main/product-detail.FileHelper.do Best regards, Tanya

Hi, Ruru! Thank you for your question. The RP52139 is not made for all Delta faucets. Most of our faucet handle set screws take a 3/32" or 1/8" Allen wrench. Best Regards, Rosanna

Thank you for your question! Almost all of our shower handle set screws take a 3/32" or 1/8" Allen wrench. Best regards, Jon

Thank you for your question. This set screw is designed to work with specific models and may or may not work with a towel bar. Please refer to the parts diagram for your towel bar for more information. Best regards, Jon

Thank you for your question, Anil Gore! The set screw size is #10-32 x .25. Best Regards, Christina

Hi, Eulicki! Thank you for your question. The Delta RP52139 Set Screw uses a 3/32" Allen Wrench. Best Regards, Rosanna

Hi Carole, Thank you for your question about the Delta Faucet RP52139 Set Screw & Allen Wrench. I apologize that your faucet handle is loose. I know that can be frustrating. We are happy to help! Tightening the set screw would be the first recommendation for a loose handle. If the issue remains, the set screw RP40650 can be replaced, or the RP63193 handle kit. See the faucet part diagram for more information: https://media.deltafaucet.com/PartsDiagram/DPD-K-9192T-DST.pdf Please reach out if you have any questions or need additional assistance. We appreciate your business and look forward to continuing to serve you! Best Regards, Bryan Digital Communications Specialist