Rugged, strong, and dependable. Sea Dog's heavy-duty clamp-on oarlock (3-582070-1). These adjustable oar locks provide an easy method to secure your oars. The robust zinc-plated steel construction will withstand weather conditions and fit most standard oars. Sea-Dog Line is a third-generation family-owned business with a long history of delighted clients going back to 1933. The company has received several industry accolades for its competence and efficiency. Key Features: Constructed with the finest materials available Tested for performance and quality Securely fasten to the oar with a single adjustable bolt; no drilling necessary. Quick and easy to install Recommended for use in freshwater. 1/2" x 2" pin, zinc-coated steel It fits 3/4" to 1-7/16" oars Straight two-inch-long shank. The adjustable bolted clamp fits the most common oars. Specifications: Brand: Sea Dog Marine SKU: 3-582070-1 UPC: 035514582155 Weight: 1.93 LBS A: 1/2" B: 2" C: 1 3/16" D: 6 3/4" Sold per pair Heavy duty clamp-on oar locks are constructed of heavy gauge zinc plated steel. Easy to install, bolted clamp is adjustable to fit most standard oars. Straight 2" long shank. Recommended for freshwater use.