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the base expands as you tighten the nut for a secure hold in concrete
This hexagonal bolt has a length of 3-1/2" with a threading of 3/4-16 [Partially Threaded]
The anchors have a thread of 3/4-10 and a length of 8-1/2
This hexagonal bolt has a length of 4-1/2" with a threading of 1-1/4-12 [Partially Threaded]
The screw has a length of 8 and a thread of 3/4-16
Square Head Screw Full Thread Black-Oxide Alloy Steel 3/4-10 * 4-1/2" Grade 8 [Cup Point] [External Square Drive] left_thread the base expands as youUse these set screws for light duty holding. A square head allows them to be turned by hand, or fastened with a wrench when you need more torque. The cup point has a thin edge that digs into the contact surface for a secure hold. Length is measured from under the head. The screw has a length of 4 1 2" and a thread of 3 4 10.
