Northwest Instrument NAT83 Flat Head Heavy-Duty Contractor’s Aluminum Tripod Model Number: NAT83 The NWI NAT83 Heavy Duty Aluminum Tripod services as an excellent base for your construction instruments. Use its extension legs to alter its height anywhere from 38 to 62 inches. It features steel pointed feet and locks that secure a firm grip on the ground. The Northwest Instrument NAT83 has a flat head that easily accommodates most instruments via the 5/8-inch x 11 threading. This rugged tool also includes a convenient shoulder strap for easier transport. Features Adjustable height: 38 to 62 inches Plumb-bob hook Pointed steel feet Clamp locks Weight capacity up to 35 lbs Heavy-duty aluminum 5/8-11 thread Includes shoulder strap