Nylon Hex Standoff M4×30mm Female-Female PCB Spacer 10-Pack

Nylon Hex Standoff M4×30mm — Female-Female PCB Spacer, 10-Pack

M4×30mm nylon hex female-female standoffs provide 30mm of PCB clearance height for multi-board stacking, tall electronics enclosure assembly, and applications requiring substantial inter-board spacing for cable management, cooling airflow, or large component clearance. The M4 thread ensures structural rigidity at this height, and the female-female configuration accepts M4 screws at both ends.

Key Specifications

Parameter	Value
Thread Size	M4
Length (body)	30mm
Configuration	Female-Female (F-F, both ends tapped)
Material	Nylon (PA66)
Hex Body AF	6mm
Properties	Electrically non-conductive, non-magnetic, lightweight
Quantity	10pcs per pack

Why Choose M4×30mm Nylon Standoffs?

• 30mm for multi-board stacking — 30mm inter-board spacing accommodates two PCBs with tall components, cable harnesses, and cooling airflow between boards
• M4 rigidity at 30mm — M4 thread provides structural stability at 30mm height; M3 standoffs at this height would flex under lateral loads
• Female-female configuration — both ends accept M4 screws for flexible mounting to base panel and PCB
• Electrically non-conductive — PA66 nylon eliminates short circuit risk between boards and mounting surfaces
• Lightweight — nylon construction for weight-critical applications

Typical Applications

• Multi-board electronics enclosure stacking (30mm inter-board spacing)
• Industrial control panel PCB mounting with cable harness routing
• Power electronics enclosure with cooling airflow between boards
• Custom electronics project enclosure with tall component stacks
• Test and measurement equipment PCB mounting
• Audio electronics enclosure with transformer and capacitor clearance

Compatible With

• M4 machine screws for PCB and base panel attachment
• M4 hex nuts, nyloc nuts, and flat washers
• PCB mounting holes: standard 4.3mm clearance drill
• Can be combined with M4×20mm or M4×40mm standoffs for custom heights

Package Contents

• 10× M4×30mm nylon hex female-female standoffs

Frequently Asked Questions

Q: Is M4 necessary for 30mm standoffs, or can I use M3?

A: M4 is strongly recommended for 30mm standoffs. At 30mm height, M3 nylon standoffs have a slenderness ratio that makes them prone to flexing and buckling under lateral loads. M4 provides approximately 2× the cross-sectional area and significantly better rigidity. For structural stability at 30mm, always use M4 or larger.

Q: How much weight can a 30mm M4 nylon standoff support?

A: PA66 nylon has a compressive strength of approximately 80–100 MPa. An M4 nylon standoff at 30mm height can support several kilograms of compressive load. However, lateral (bending) loads are the limiting factor at this height. For heavy PCBs or vibration applications, use brass or aluminium standoffs instead.

Q: Can I use 30mm standoffs for outdoor electronics enclosures?

A: PA66 nylon has moderate UV resistance. For prolonged outdoor exposure, black nylon (UV-stabilised) performs better than natural (white) nylon. For long-term outdoor structural use, consider aluminium or stainless steel standoffs instead.

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