This pyramid head drive socket is a female square socket.
The square drive socket works great for 5/16 bolt heads with 1/2" square head.
- fits any square head lag with 1/2" head
- fits most 5/16" square head bolts or nuts
- 1/2" Drive
- Forged from the finest chrome molybdenum alloy steel-the best choice for strength and durability
- Radius corner design-to extend the life of fasteners
- The design drives the side of the fastener instead of the corner
- Provides increased strength, but also avoids rounding of rusted or damaged fasteners
- 4-point impact socket
- standard depth