https://www.lowes.com/pd/BORA-The-B...ness-materials-with-no-fine-tuning/5016038967 BORA 4-1/2" 250-lb Auto-Adjust C-Clamp (BR-G060202) on sale for $14.98. Choose curbside pickup where stock permits or shipping is free on orders $25+ for MyLowe's Rewards Members , otherwise starts from $5.99.