O.S. Engine OS79871430 M4x30 Hex Socket Head Cap Screw Pack of 10  [OS79871430]

O.S. ENGINES HEXAGON SOCKET HEAD SCREW CAP SCREW M4X30 10PCS
Price:
£4.23
Brand:
O.S. Engine
Model:
OS79871430
GTIN:
4531028153882
Condition:
Brand New
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Precision Hex Socket Screws for RC

This M4x30 hexagon socket head cap screw set from O.S. Engine OS79871430 supplies ten screws intended for RC-scale mounting and small structural uses. They are designed to handle general fastening roles on engines, mounts and compact assemblies that require M4 engagement.

Fitting guidance: pick the correct hex driver to protect the socket profile, ensure sufficient thread engagement, and avoid overtightening which can strip threads or deform thin fixings. For joints subject to vibration, a medium-strength thread locker may be applied sparingly.

Maintenance tip: these cap screws serve as direct replacement hardware for engine mounts, motor mounts and accessory brackets, helping maintain positional integrity during tuning and routine checks.

What checks should I perform before fitting these screws?

Confirm the M4 thread matches your mount, check that the 30mm length leaves sufficient engagement, and verify component thickness to avoid protrusion.

How do these screws influence alignment and vibration control?

Properly torqued and correctly engaged, these fasteners help preserve alignment and reduce movement; use a thread locker if vibration is likely to loosen joints.

Can these be used with plastic mounting plates?

They can be used with plastic or composite plates provided you ensure adequate thread engagement and avoid over-torquing which could damage softer materials.

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