Home » DIY Speaker Cabinet Parts » Grilles and Speaker Mount HdweSpeaker Clamp KitClamp Kit Please Select...4 clamps 10" & 12" 6 Clamps 15" & 18" (+ USD $3.72) Price: USD $8.79 Quantity Description Heavy duty Speaker clamp Kit Includes 1/4 socket head cap screws and 1/4 hurricane nuts for wood insertion. Measured Drawing Product ReviewsNo Reviews For This Product.