4" Pulley Clevis Strap Kit for Extension Springs Liftmaster 2" ID Torsion spring with

2" ID Torsion spring with winding and anchor cone installed

Adjustable commercial top roller bracket made in the USA out of galvanized steel

and pulleys

it features Security+2

4" Pulley Clevis Strap Kit for Extension Springs Liftmaster 2" ID Torsion spring withPulley clevis strap fastener kit for 4" diameter pulleys. Need a pulley for this clevis strap? Extension Spring Pulley 4" for doors up to 200lb. NOT COMPATIBLE WITH TORSION OR TORQUEMASTER SPRING SYSTEMS. Includes: 2 4" clevis straps bolts, nuts & washers Specifications: 200lb Load Steel Construction Zinc Plated Compatible with 4" diameter pulley sheave wheels for Extension Spring Doors Take a look at this diagram to see the different spring types: