1210-2021-1 Rockwell (C) Scale Hardness of Externally Threaded Fasteners Price: $164.00

In each testing round participants receive ten bolts (1/2" diameter), selected from two different production lots. ASTM Test Method F606/F606M, ASTM Test Method E18, and SAE J429 are referenced.
Laboratories must cut bolts prior to measuring hardness.
All laboratories must report data using the Rockwell C scale.
Total number of shipments = 1 
Samples ship in November.
Enrollment deadline: 24 July 2021