Comparison : Item # 25BF1B19-M4HEX, BigHead® M4 Thread Size and 19 Millimeter (mm) Head Diameter Round Base Bondable Hex Nut
Item # 25BF1S20-M4HEX, BigHead® M4 Thread Size and 20 Millimeter (mm) Head Diameter Round Base Bondable Hex Nut
Item # 25BF1S20-M6HEX, BigHead® M6 Thread Size and 20 Millimeter (mm) Head Diameter Round Base Bondable Hex Nut
Item # 25BF1S23-M4HEX, BigHead® M4 Thread Size and 23 Millimeter (mm) Head Diameter Round Base Bondable Hex Nut
Item # 25BSF1S23-M4HEX, BigHead® M4 Thread Size and 23 Millimeter (mm) Head Diameter Round Base Bondable Hex Nut


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