Socket Head Cap Screw 3/8"-16 x 4-1/2"UNC threadAlloy Steel, Black Oxide coating with oil treatmentAllen driveGrade 8ASTM A574 Photo may not be the exact screw size as it is a stock photo of socket head cap screw.
Cementex 1/2-Inch Square Drive Standard Socket Set Comes with all 8 sockets: 9/16 - 1/2 - 11/16 - 3/4 - 13/16 - 7/8 - 15/16 - 1 1/8 . A 12 inch long 1/2" drive and 9" extension . The Cementex set is a high voltage double insulated socket set and would be a great addition to any tool collection.
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