Nylon Hex Standoff M4×18mm Male-Female PCB Spacer 10-Pack

Nylon Hex Standoff M4×18mm — Male-Female PCB Spacer, 10-Pack

M4×18mm nylon hex male-female standoffs provide 18mm of PCB clearance height with a male threaded stud at one end for direct mounting into a tapped hole or nut, and a female tapped hole at the other end for the PCB mounting screw. The M4 thread provides greater clamping force than M3 for heavier PCBs and panels, while the 18mm height accommodates tall components, cable routing, and multi-board stacking configurations.

Key Specifications

Why Choose M4×18mm Male-Female Nylon Standoffs?

• 18mm tall clearance — accommodates tall through-hole components, large connectors, and cable routing under the PCB; suitable for multi-board stacking configurations
• Male-female configuration — male stud threads directly into a tapped hole or nut in the base panel; female end accepts M4 screw for PCB attachment; no nut required at the base
• M4 thread — greater clamping force than M3; suitable for heavier PCBs, panels, and structural mounting applications
• Electrically non-conductive — PA66 nylon eliminates short circuit risk between PCB and mounting surface
• Lightweight — nylon construction for weight-critical applications

Typical Applications

• Tall PCB mounting in electronics enclosures with large through-hole components
• Multi-board stacking configurations requiring 18mm inter-board spacing
• Panel-to-PCB mounting where direct stud threading into panel is preferred
• Industrial electronics enclosure PCB mounting (M4 for heavier boards)
• Power supply board and transformer mounting with tall component clearance
• Custom electronics project enclosure assembly

Compatible With

• M4 machine screws for PCB attachment (female end)
• M4 tapped holes or hex nuts for base mounting (male stud end)
• PCB mounting holes: standard 4.3mm clearance drill
• M4 flat washers and split lock washers

Package Contents

• 10× M4×18mm nylon hex male-female standoffs

Frequently Asked Questions

Q: What is the difference between male-female and female-female standoffs?

A: Male-female (M-F) standoffs have a threaded stud at one end that screws directly into a tapped hole or nut in the base panel — no screw is needed at the base end. Female-female (F-F) standoffs have tapped holes at both ends and require a screw at each end. M-F standoffs are faster to install when the base panel has tapped holes; F-F standoffs are more flexible when the base panel has clearance holes.

Q: Why use M4 instead of M3 standoffs for PCB mounting?

A: Use M4 standoffs when: (1) the PCB or panel specifies M4 mounting holes, (2) the PCB is heavy and requires greater clamping force, (3) the standoff height is tall (18mm+) and M3 thread engagement may be insufficient for structural stability, or (4) the application involves vibration or dynamic loads.

Q: Can I use M4×18mm standoffs for Raspberry Pi mounting?

A: Raspberry Pi uses M3 mounting holes, not M4. M4×18mm standoffs are not compatible with Raspberry Pi. For Raspberry Pi, use M3×6mm or M3×8mm nylon standoffs instead.