快扣式膨胀锁定PCB间隔柱是当今电子工业应用最为广泛的电路板塑料紧固件之一。这种自锁电路板间隔支撑柱带单边内螺纹。--顶端卡扣式膨胀锁定，底部为注塑成型内螺纹方便最终组装。

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如下对标欧美型号备查参考号 Metric Threaded Circuit Board Support&Spacers typical cross reference:

Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x5mm SW 6    Wurth Elektronik 973050365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x6mm SW 6    Wurth Elektronik 973060365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x7mm SW 6    Wurth Elektronik 973070365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x8mm SW 6    Wurth Elektronik 973080365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x9mm SW 6    Wurth Elektronik 973090365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x10mm SW 6    Wurth Elektronik 973100365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x12mm SW 6    Wurth Elektronik 973120365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x14mm SW 6    Wurth Elektronik 973140365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x15mm SW 6    Wurth Elektronik 973150365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x17mm SW 6    Wurth Elektronik 973170365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x18mm SW 6    Wurth Elektronik 973180365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x20mm SW 6    Wurth Elektronik 973200365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x22mm SW 6    Wurth Elektronik 973220365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x25mm SW 6    Wurth Elektronik 973250365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x30mm SW 6    Wurth Elektronik 973300365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x31mm SW 6    Wurth Elektronik 973310365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x35mm SW 6    Wurth Elektronik 973350365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x40mm SW 6    Wurth Elektronik 973400365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x45mm SW 6    Wurth Elektronik 973450365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x50mm SW 6    Wurth Elektronik 973500365
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x6mm SW 8    Wurth Elektronik 973060385
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x7mm SW 8    Wurth Elektronik 973070385
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x8mm SW 8    Wurth Elektronik 973080385
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x10mm SW 8    Wurth Elektronik 973100385
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x12mm SW 8    Wurth Elektronik 973120385
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x15mm SW 8    Wurth Elektronik 973150385
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M3x23mm SW 8    Wurth Elektronik 973200385
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x5mm SW 8    Wurth Elektronik 973050485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x6mm SW 8    Wurth Elektronik 973060485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x7mm SW 8    Wurth Elektronik 973070485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x8mm SW 8    Wurth Elektronik 973080485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x9mm SW 8    Wurth Elektronik 973090485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x10mm SW 8    Wurth Elektronik 973100485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x12mm SW 8    Wurth Elektronik 973120485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x13mm SW 8    Wurth Elektronik 973130485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x14mm SW 8    Wurth Elektronik 973140485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x15mm SW 8    Wurth Elektronik 973150485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x18mm SW 8    Wurth Elektronik 973180485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x20mm SW 8    Wurth Elektronik 973200485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x23mm SW 8    Wurth Elektronik 973230485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x25mm SW 8    Wurth Elektronik 973250485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x30mm SW 8    Wurth Elektronik 973300485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x35mm SW 8    Wurth Elektronik 973350485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x40mm SW 8    Wurth Elektronik 973400485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x45mm SW 8    Wurth Elektronik 973450485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x50mm SW 8    Wurth Elektronik 973500485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x60mm SW 8    Wurth Elektronik 973600485
Standoffs & Spacers WA-SNTI Spacer Stud T/Clip M4x70mm SW 8    Wurth Elektronik 973700485