1/2-13 x 1 1/2 Hex Head Flange Non Serrated Frame Bolt IFI-111 2002 Grade 8 Black Phosphate C8FT It is plain

It is plain

0 x 30 DIN 6921 10

while the full thread offers maximum holding power

This 3/4-16 x 4 1/2 Hex Cap Screw Grade 8 Yellow Zinc is a high-strength fastener designed for demanding applications

1/2-13 x 1 1/2 Hex Head Flange Non Serrated Frame Bolt IFI-111 2002 Grade 8 Black Phosphate C8FT It is plainThis 1 2 13 x 1 1 2 Hex Head Flange Non Serrated Frame Bolt IFI 111 2002 Grade 8 Black Phosphate is a high quality fastener designed for use in a variety of applications. It is made from steel and has a black phosphate finish for corrosion resistance. The bolt has a hex head for easy installation and removal, and a flange head to provide a larger bearing surface. It is also non serrated, so it will not damage the surface it is being installed into.