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This is a 50-count pack of 5/16-24 x 1-1/4 inch 12-point flange cap screws from Rivercity Fastener.

They're made of steel with a black oxide finish.

The 12-point head gives you more purchase for high-torque applications.
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They have a flange built-in, so you don't need a separate washer.
They're inch-sized, with a thread diameter of 5/16 and a thread size of 24.

The length is 1-1/4 inches.

They're extra strong, good for engine work, drivetrain, or any project needing a serious bolt.
The MPN is 3220.

They're brand new, in a pack of 50.

Stock up for your next project.

4.6 out of 5