Heavy Duty Adjustable Screw Jacks for Crawl Space Leveling, 10"-18" Height Range, 10000 lbs Load Capacity (4 Packs), Steel Joist Beam Support Jacks for Basement, Cellar & Floor Stabilization

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About This Industrial-Grade Durability ：Crafted from high-strength carbon steel with a corrosion-resistant black oxide finish, these support jacks offer exceptional toughness for l ong-term use in damp crawl spaces or basements. The integrated anti-slip base plate ensures stable positioning during load-bearing Versatile Height & Load Range：Adjusts from 10" to 18" to fit various ceiling/floor gaps, with each jack supporting up to 10,000 lbs (4.5 tons) at minimum height and 7000 lbs (3.2 tons) at maximum height. M24 coarse threads enable smooth height adjustment with minimal effort Effortless Installation & Operation：Secure the base plate on concrete or wood surfaces, then rotate the jack shaft with the included hex wrench to reach the desired height. Tighten the locking nut to fix the position—no complex tools or skills required Multi-Scenario Application：Ideal for temporary or permanent support in crawl spaces, basements, and under-house areas. Use to level sagging floors, stabilize joists, brace beams during renovations, or reinforce decks and porches for enhanced safety Safety-Engineered Design：Features dual locking nuts and a reinforced top plate to prevent slippage under heavy loads. The swivel top design adapts to uneven joists, ensuring full contact and uniform weight distribution for optimal stability Overview Vehicle Service Type : Car Material : Stainless Steel Load Capacity : 11023 Pounds Brand : lukar Color : Red Show more