Standard stainless nuts
Internal nuts are for use with all standard Valco internal fittings and most valves, with sizes for tubing from 1/32" to 1/4" OD.
Controlled radius stainless nuts
These specialty nuts are radiused to facilitate a tight bend as the tube exits the fitting, helping to prevent kinks in very thin wall tubing. Available in 1/16" and 1/8" stainless and 1/16" hex and fingertight PEEK versions.