MS2.0 FH Countersunk Screw Upgrade M3x8mm ZC-F38SH by Yokomo  [ZC-F38SH]

Yokomo ZC-F38SH High-Precision Machining FH Screws (120?) for MS2.0 Aluminum Chassis M3x8mm (4pcs)
Price:
AUD$8.73
Brand:
Yokomo
Model:
ZC-F38SH
GTIN:
639342229789
Condition:
Brand New
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FH Countersunk Screw Overview

The Yokomo ZC-F38SH is an FH (flat head) M3x8mm countersunk screw set engineered for MS2.0 aluminium chassis. The head angle is 120 degrees to align with the countersink form used on 1.5mm plates, promoting flush seating and uniform clamp.

Crafted from steel with close tolerance machining to reduce play between head and countersink. Proper seating limits local deformation and helps retain the chassis reference plane, which improves repeatability when tuning chassis stiffness and handling.

Practical tips: fit with the correct hex driver, seat the screw before final torque, and avoid over-torquing thin aluminium to prevent stripped threads. Supplied as 4pcs of M3x8mm and noted compatible with the MSR-020A and MSR-020 series.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Will these screws stay tight under vibration?

Properly torqued and seated FH screws with matching countersink angle resist loosening better than mismatched heads, though thread locker or spring washers can be used if required.

How does head angle affect chassis alignment?

A head that matches the countersink keeps the plate flat under clamp, reducing local bend that would shift mounting points and affect alignment.

What should I watch for during installation?

Use the right driver, avoid cross-threading, and tighten gradually; on thin aluminium, stop once you feel solid resistance to prevent stripping.

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