Screws for holding the original factory hard jaws onto Reed vises - specifically the 3C and likely multiple other models
Confirmed to fit Rock Island 574, 577 and 593
Fits some older Craftsman vises - verify the dimensions below

The largest diameter of the flat head is .400" +/- .005"
If you are looking for a larger head like 7/16 (0.438), check my other listings for Craftsman 5/16-18 screws
The overall length is approximately .840 (not a critical dimension)
Thread is 5/16-18 (outside diameter of thread peaks is 5/16")
Grade 8 steel fasteners

Set of four (4) screws

Please check that these values match your jaws or existing/broken screws before ordering.

By default, this ships via stamped mail for free and may take 1.5 weeks for delivery.  If you require faster delivery or tracking, select the appropriate option at checkout ($4 extra to cover the tracked label)