Strut Channel Nuts, 3/8-16 Spring Channel Nuts with Zinc Electroplate Finish, Long Spring Nuts Great for Use with Strut Channel (10 Pack): Amazon.com: Industrial & Scientific
1/2" Spring Nut BUNDLE for C-Channel (Qty 25) - SAFE-T-PROOF
1/4"-20 Thread Size, 1/4 in Bolt Size, Spring Nut - 36HX94|S60000CN11 - Grainger
Regular Spring Nut For 1/4-20 Rod | Garvin Industries
10Pcs M6/M8/M10/M12 304 Stainless Steel Spring Nuts T rectangule Nut C Steel Accessory - AliExpress
Adamax 3/8-in Straight Strut Nut in the Strut Accessories department at Lowes.com
Source High quality cable tray stainless steel spring nut on m.alibaba.com
3/8"-16 Thread Size, 3/8 in Bolt Size, Spring Nut - 5YE11|V200 3/8 - Grainger
OhLectric OL-39827 Strut Channel Nut with Short Spring - 3/8-16” UNC Threads - 0.37” Thickness - Spring Nut With Zinc Electroplate Finish - Great For Use with 13/16” & 1” Channels (Pack of 5): Amazon.com: Industrial & Scientific
Power-Strut PS RS 1/4 EG :: Spring Nut, Long Spring, Size: 1/4-20, Steel/Electro-Galvanized :: PLATT ELECTRIC SUPPLY