Non-slip abrasive tread material bonded and locked into the aluminum tread base
Treads exceed ADA requirements for coefficient of friction tested to ASTM F609 and MIL-D-23003A. The coefficient of friction for NGP stair nosings is .94 dry and .86 wet
Furnished drilled and countersunk for screws, except 3231 and 3241 which have hook anchor designed for installation into wet concrete
Furnished standard with #14 × 1-1/2" stainless steel wood screws. Specify if other screws and anchors required
Stair nosings are manufactured to order and are non-cancelable and non-returnable
Mill finish aluminum with black carborundum and aluminum oxide non-slip abrasive tread