Sign holder clamp friction fit for square tube 0 No Reviews yet Pinit $1.20 Quantity discounts available QuantityPrice SKU: 10704 ITEM WEIGHT (LBS): 0.16 Quantity -+ Add to Cart Details Friction sign clamp slides over 1" square tubing. Accepts 3/8" threaded stems. Chrome. DetailsBackDetailsFriction sign clamp slides over 1" square tubing. Accepts 3/8" threaded stems. Chrome.See MoreSee Less Reviews 0 BackRatings & ReviewsNo reviews availableBe the first to Write a Review