SCREW, MACHINE, MUSHROOM HEAD (P/N a113-4b) - New Surplus
P/N: a113-4b
Category: Screws
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 16 Available |
Product Description
The a113-4b is a steel machine screw with a mushroom (truss) head designed to distribute load over thin sheet materials in aircraft assemblies. Conforming to AN526 standard specifications, this fastener secures removable access panels and similar components where load spreading is critical. The truss-style head provides a larger bearing surface than standard machine screws, preventing pull-through on thin aluminum or composite sheets.
Installation requires matching thread size and length to aircraft maintenance manual specifications and applying torque per OEM guidance. Commonly used in general and commercial aviation for panel attachment and structural fastening.
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.
Frequently Asked Questions
What is the SCREW, MACHINE, MUSHROOM HEAD (P/N a113-4b)?
The a113-4b is a steel machine screw with a mushroom (truss) head designed to distribute load over thin sheet materials in aircraft assemblies. Conforming to AN526 standard specifications, this fastener secures removable access panels and similar components where load spreading is critical.
What conditions is the a113-4b available in?
The a113-4b is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.
How do I get pricing for the a113-4b?
The a113-4b requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.
Do you offer expedited shipping for the a113-4b?
Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.
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