Old Sumner Part Number
783250 (varies by configuration for head options)
Old B&B Part Number
3610 (varies by configuration for head options)
The B&B SUMNER Hi Boy™ Jack Series is engineered for safe, stable pipe holding and leveling in high places where extra reach and adjustability are essential. With a generous height range from 39" to 72" (991–1,829 mm), each Hi Boy Jack delivers dependable support for elevated pipe runs, equipment tie-ins, and overhead fabrication work. A folding design, extra‑wide 38" footprint, and 1½" (1.5") ACME-thread adjustment combine to provide strength, portability, and precise control, while multiple compatible slip‑on heads let you tailor each stand to your application.
- 3610 – Hi Boy™ Jack with V-head: Standard elevated pipe support for fit-up and leveling.
- Optional slip-on heads (sold separately): Steel wheel, phenolic wheel, stainless wheel, stainless V-head sleeves, and stainless ball transfer heads for specialized handling.
- Adjustable height from 39" to 72" (991–1,829 mm) for high‑level pipe support.
- 1,000 lbs (450 kg) load capacity, third‑party tested with a minimum 2:1 safety ratio.
- Extra‑wide 38" (965.2 mm) footprint increases stability and reduces tipping risk.
- Quick lock washer and ACME-thread adjustment provide fast, precise height changes.
- Folding design allows easy transport and access into tight work spaces.
- Bottom T‑handle locks the folding base into a fixed working position for added safety.
- Lock washer can be fastened to the base to help secure the jack during use.
- Pipe diameter capacity up to 24" (600 mm), covering a wide range of industrial pipe sizes.
- Compatible with B&B SUMNER slip‑on heads: SWH2, PWH2, SSWH2, SSH2, and BTH2.
- Available in bulk packaging of 60 units (Part No. 3610x60) for outfitting shops and fleets.
- Load Capacity: 1,000 lbs (450 kg).
- Height Range: 39"–72" (991–1,829 mm).
- Footprint Width: 38" (965.2 mm).
- Pipe Diameter Capacity: Up to 24" (600 mm).




