The B&B SUMNER Mega Jack Series combines high-capacity support, oversized V-heads, and upgraded adjustment systems to deliver unmatched strength and stability for heavy-duty pipe work. Available in both three-leg and four-leg configurations, Mega Jacks feature large 16" double reinforced V-heads, over-sized legs and braces, and a heavy-duty 1.75" solid ACME adjustment rod. With a 5,000 lb load rating and more than a 3:1 safety ratio, these stands are built for professionals who demand maximum performance in demanding industrial environments.
- 3600 – Three Leg Mega Jack with V-head: Mid-height support with a wide three-leg stance and 32"–44" height range.
- 3604 – Four Leg Mega Jack with V-head: Ultra-stable four-leg base with a taller 31"–49" height range.
- 3600x25 / 3604x19: Bulk crate options for shops or contractors needing multiple jacks.
- Double reinforced 16" V-head on all models for improved load distribution and rigidity.
- Handles pipe diameters up to 32" (813 mm) for large industrial piping.
- Over-sized legs and braces provide increased capacity and structural strength.
- Third-party tested with over a 3:1 safety ratio for high safety margins under load.
- Heavy-duty 1¾" (1.75") solid ACME rod adjustment with machined ACME nut and tri-handle.
- Simplified adjustment system eliminates washer, inner support tube, and T-handle for easier use.
- Increased footprint on both three-leg and four-leg models for additional stability.
- Height ranges cover approximately 31"–49" across the series for elevated pipe support.
- Ideal for construction, industrial maintenance, fabrication shops, and heavy equipment support.
- Load Capacity: 5,000 lbs (2,265 kg) for all Mega Jack models.
- Height Range: Three Leg Mega Jack: approx. 32"–44" (812.8–1,117.6 mm); Four Leg Mega Jack: approx. 31"–49" (787.4–1,244.6 mm).
- Pipe Capacity: Up to 32" (813 mm) diameter.



