SCREW: CAP ST HEX HD (P/N 418-420) - New Surplus

The 418-420 is a steel hex head cap screw for aircraft structural assemblies. This fastener secures airframe brackets, equipment mounts, and mechanical joints where reliable clamping force and precise torque application are required. The hex head design provides wrench engagement for controlled installation and maintenance.

Installation requires correct grip length selection and torque per the aircraft maintenance manual and applicable aerospace standards. Verify part compatibility with the aircraft's Illustrated Parts Catalog before use.

What is the SCREW: CAP ST HEX HD (P/N 418-420)?

The 418-420 is a steel hex head cap screw for aircraft structural assemblies. This fastener secures airframe brackets, equipment mounts, and mechanical joints where reliable clamping force and precise torque application are required.

Does the 418-420 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The SCREW: CAP ST HEX HD conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.

What material is the 418-420 manufactured from?

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 418-420.

Can I order the 418-420 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The SCREW: CAP ST HEX HD is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.