8020, 3066, 10 Series, 1/4-20 x 0.75 Inch 3/4 Inch Flanged Button Head Socket Cap Screw (FBHSCS) 80/20 Steel Bolts (25)

This flanged button head socket cap screw is made out of steel with a black zinc finish. | The low domed head with a wider bearing surface offer a finished appearance, making them an ideal choice when a neat appearance is desired. | This bolt comes with a 0.56" diameter flange head and full thread length of 0.75" with a 5/32 allen hex drive. Thread size is 1/4-20. | Used with t-nuts to mount brackets and plates to aluminum extrusions. Quick installation and can be re-purposed over and over. | Perfect for your extruded rail projects!