Tar River Attachments | Quick Attach Plates Other Characteristics Available in 3 Thicknesses Standard Duty - 1/4" Heavy Duty - 3/8" Serious Duty - 1/2" Specifications PRODUCT CODE Description SSQA14 Standard Duty Quick-Attach Plate - 1/4" SSQA38 Heavy Duty Quick-Attach Plate - 3/8" SSQA12 Serious Duty Quick-Attach Plate - 1/2"