5.5mm Hex Female Standoff
六角支座 有螺纹 M3 不锈钢 0.472"（12.00mm） -
得捷: HEX STANDOFF M3 SS 12MM
艾睿: Standoff Hex F M3 X 0.5-THD 5.5mm-A/F Stainless Steel ASTM A581/A582
Keystone Electronics
Adafruit Industries
ERNI Electronics 伊恩电子