Amazon.co.jp: Yudesunyds Carbon Steel Cup Point Grab Screw - Grade 12.9 High Tensile Hex Wrench Socket Head Nail Full Screw Plain Machine Set Screw Fastener M10 M12 : Industrial & Scientific
Amazon.com: M12 x 1.75 x 90 Coarse Thread Class 12.9 12-Point Flange Screw Alloy Steel Thermal Black Oxide Pk 5 : Industrial & Scientific
M12-1.75 x 220mm 12.9 Alloy Steel Socket Head Cap Screw, 10 pk.: Amazon.com: Industrial & Scientific