Square Head Set Screws
Square head set screw have also known as half dog point set screws have a square head which enables wrench tightening.
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7/8-9 X 4 SQ HD SET SCREW CUP PT ASTM
Item #:
87C400SHS/TP
7/8-9 X 4 SQ HD SET SCREW CUP PT ASTM A307 CASE HARDENED WITH THREAD PROTECTORS
