Sign clamps are available for round, rectangular and square tubing.

Clamp For Round Tubing 1-1/4" & 1-5/16"

Round tubing clamp with stem, perfect for sign holders with stem slot. Place this clamp on round tubing racks or hangrails. Main...

Clamp For Round Tubing 1" & 1-1/16"

Round tubing clamp with stem, perfect for sign holders with stem slot. Place this clamp on round tubing racks or hangrails. Main...

Clamp For 1/2"X1-1/2" Rect Tubing W/Removable Stem Chrome

Clamp For 3/4"&7/8" Square Tubing Chrome

Square Tubing ClampFits 3/4" & 7/8" square tubing3/8" x 3" stemChrome.

Clamp For 1" Square Tubing With 3/8" Fitting - Chrome

Square tubing clamp with 3" stem perfect for sign holders with 3/8" stem slot. Place this clamp on 1" square tubing racks or hangrails.

Chrome All Purpose Sign Holder Clamp 3/8 Fitting

Universal Sign Holder Clamp for Racks, Hangrails, etc.Fits 1" and 1-1/4" round, 1"square, or 1/2" x 1-1/2" rectangular tubing.Placing a sign holder with this clamp and the appropriate steam (3", 6", 9" or 12" height - sign holder and steam sold...

Spring Clamp For Rectangular Tubing 1/2" x 1-1/2" - 3/8" Fitting

Rectangular tubing spring clamp, perfect for sign holders with stem. Place this clamp on rectangular tubing racks or hangrails. Main Features Fits 1/2" x 1 1/2" rectangular tubing - 3/8" FITTING

Spring Clamp For 1" Square Tubing Chrome - 3/8" Fitting

Square tubing spring clamp, perfect for sign holders with Spring Clamp for 1" Square Tubing w/ 3/8" Fitting. Place this clamp on square tubing racks or hangrails.