Here is a JBL MA15 Speaker Mounting Kit for 8" to 18" Speakers. This kit will work for two (2) 8"to 18" speakers. Included in the kit are: NEW JBL OEM (Original Equipment Manufacturer) cast speaker clamps (8 pieces) 1/4" by 20 by 1and1/2" CORRECT PHILLIPS HEAD SCREWS (8 pieces) 1/4" by 20 four prong "T" Nuts (8 pieces) 1/2" neoprene gasket material (8 pieces 15" long) enough for two (2) 18" speakers Installation instructions included |