This has item has been discontinued with part number 640036 currently being offered as the replacement.

Tilt-In Window Locking Cam Pivot Pin.
Locks the balance in place when tilting window in for cleaning or service.
Used in conjunction with Plastic Balance Block for Tilt in wood double hung windows

Material: Zinc
Length: 1-7/16 inch
Width: 5/8 inch
Mounting: 1 hole, wood screw
Handed: No, Non-Handed fits left or right

Priced and sold each.
No returns, refunds or exchanges on this item.