Presco 4536G 200 Marking Flag, 4 in x 5 in, 36 in Staff Ht, Green, Blank, Solid, 100 PK G1831557 Styles A D have a Z swivel Styles A D have a Z swivel that connects the outlet hose to the gun and prevents the hose from kinking Material Steel Material Grade Class Grade C Finish Black Oxide System of Measurement Inch Thread Type Coarse Thread Direction Right Hand Fastener Thread Type UNC (Coarse) Application For Use with Structural Bolts Material Quality Standards ASTM 563 Hex Type Heavy Hex Removable Yes Rockwell Hardness B78 to C38 Nut Standards ASTM 563 Nut Style Hex Nut Heavy Basic Material Steel Material Grade Grade C Fastener Finish Plain Fastener Thread Direction Right Hand