1 1/2" or 1 1/4" Plain metal survey disc, These are basically washers. Made of Stainless, aluminum or brass.
*these are plain disks without text stamping of any kind, just a basic washer.
Designed for use with most surveying nails
Stainless Steel Disk (washer)
Offered in 1/16" (0.0625) thickness and 1/32" (0.03125
Made From 304 Stainless Steel
Aluminum Steel Disk (washer)
Offered in 1/16" (0.0625) thickness
Made From 5052-H34 Aluminum
Brass Disk (washer)
Offered in 1/16" (0.0625) thickness and 1/32" (0.03125)
Made From 70/30 Cartridge Brass
*thickness on all disc might slightly very from spec.