Thank you for your inquiry, Jim F! The RP152 is the set screw that comes with the RP21469 hand assembly. The set screw thread count is 1/4-28x.313 (0.1 x 0.1 x 0.1 inches) (Depth 0.13, Height 0.13, Height 0.13, Diameter .13). You can order the screw from any online dealer, at deltafaucet.com, or from your local retailer or wholesaler that sells Delta products.
Date published: 2019-02-19