P/N: ms9558-20
Category: Fasteners & Hardware
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
| Condition | Stock |
|---|---|
| New Surplus | 1 Available |
The MS9558-20 is a double-hex extended-washer head machine bolt conforming to MS9558 specifications (now SAE AS9558). Manufactured from A286 corrosion and heat-resistant steel, this fastener features a 12-point head design for compact aerospace structural assemblies. The extended washer head distributes load across wider bearing surfaces, reducing stress concentration in high-vibration environments.
Installation requires torque to specification per aircraft maintenance manual and fastener standard compliance. Commonly used in engine mounts, control surface attachments, and airframe structural joints on general and commercial aviation aircraft.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
The MS9558-20 is a double-hex extended-washer head machine bolt conforming to MS9558 specifications (now SAE AS9558). Manufactured from A286 corrosion and heat-resistant steel, this fastener features a 12-point head design for compact aerospace structural assemblies.
Aircraft hardware is manufactured to military and aviation specifications. The BOLT conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.
Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the ms9558-20.
Yes, we sell hardware in various quantities from single units to bulk lots. The BOLT is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.