This popular Contractors Tripod offers a positive locking wing nut style clamp.
Lightweight and durable aluminum hinge, clamp and shoe castings
Hinges are attached with screws, not rivets
Heavy-duty poly-webbing shoulder strap
Electrostatically powder painted castings for a durable and long-lasting finish
This tripod is stronger and more rigid than comparable tripods. It's 63" (160cm) open, 38" (97cm) closed, has a 5/8" x 11 thread, flat head, and weighs 9 lbs.