●Product number：NW-163/NW-164/SP-331/SP-332/NW-165
●Quantity: 100
●Compatible screws: M4 / M5 / M6 / M8 / M10
●Material: black chromate
● Dimensions (mm): 4.1x7.6x1.0 / 5.1x9.2x1.3/
6.1ｘ12.2ｘ1.5/8.2ｘ15.4ｘ2.0/10.2ｘ18.4ｘ2.5