Aerospace Studs
Roughly 2,900 studs in our catalog of 266,000+ aerospace parts. Continuous thread, stepped, and drive studs in alloy steel and CRES to NAS, MS, and OEM specifications, ready to order with full AS9120 traceability.
Aerospace Stud Types
From full-thread studs to interference-fit stepped designs and press-in drive studs, we cover the headless fasteners that anchor engine and airframe joints.
Continuous Thread Studs
Threaded over the full length, used with nuts on both ends or screwed into a tapped boss. The general-purpose workhorse for flanged joints, manifolds, and accessory attachments across airframe and engine applications.
Stepped & Tap-End Studs
A different thread size or fit class on each end. The tap end typically installs with an interference fit in the housing, common on engine cases and gearboxes, while the nut end carries a standard thread for the clamped joint.
Drive Studs
A serrated or splined shank pressed into a plain hole, so no wrenching or tapped threads are needed in the parent part. Typically used for light attachments, covers, and locations without access for conventional installation.
OEM & Special Studs
Boeing and Airbus proprietary studs, plus shoulder, collar, and double-end variants to OEM drawings. Quote by the exact part number, including dash number for diameter, length, and finish.
Stud Materials, Installation & Locking
Alloy Steel
High-strength alloy steel studs, typically with cadmium or IVD aluminum finish for corrosion protection. Strength class and finish are set by the governing standard and dash number.
CRES & A286
Corrosion-resistant steels for studs in engine, nacelle, and other hot or corrosive zones. A286 keeps its strength at elevated temperatures where plated alloy steel is unsuitable.
Installation Practices
Studs are typically installed with stud driver or collet tooling to a specified projection height. Some drawings call for wet installation with primer or a retaining compound. The drawing and process specification govern.
Locking & Retention
Anchor-end retention typically comes from thread interference, while nut ends are commonly secured with self-locking nuts, and some designs use lockwire or key washers. Follow the callout for each joint.
How to Order Aerospace Studs
Search by Part Number
Enter your NAS, MS, Boeing, or Airbus stud part number, including the dash number for diameter, length, and finish, and review the available options.
Get a Fast Online Quote
Add the quantities you need to your quote. Compare options sourced from our approved suppliers on price, lead time, and minimum order quantity.
Order with Confidence
Check out securely online. Every shipment includes certificates of conformance backed by our AS9120 Rev B quality management system.
Studs: The Headless Anchors of Aerospace Joints
Studs do the quiet work in aerospace assemblies. Anchored permanently in a tapped housing, they let mechanics locate a gasket, manifold, or accessory over fixed threads and clamp it down with nuts, without turning a fastener inside the housing itself. That matters on joints that are opened repeatedly in service: the wear of assembly and disassembly is taken by replaceable nuts, not by threads cut into an expensive case or fitting.
The catalog covers the main constructions: continuous thread studs for general flanged joints, stepped and tap-end studs whose interference-fit anchor end grips housings on engine cases and gearboxes, and drive studs with serrated shanks pressed into plain holes. Installation and locking details vary by design and are controlled by the drawing: projection heights, thread fits, retaining compounds, and locking hardware all come from the applicable standard and process specification, not from habit. Instaparts catalogs studs by exact part number, so the part you quote matches the callout, dash number and finish included.
Every stud we supply moves through our AS9120 Rev B certified quality management system. Instaparts, a division of RFQ2Go, Inc. based in Toronto, Canada, sources exclusively from approved suppliers, applies counterfeit prevention controls aligned with AS6081, and ships with certificates of conformance and full lot traceability.
Studded joints rarely stand alone on a drawing. The same assemblies typically call for aerospace bolts on adjacent structure, aerospace threaded inserts to reinforce tapped holes, and aerospace rod ends in nearby linkages. For a multi-line requirement, send your bill of materials through our quote page and our team will price the complete package.
Aerospace Stud FAQs
What is the difference between a stud and a bolt?
A bolt has a head and is torqued into or through the joint; a stud is headless, with threads on both ends or over its full length. One end is anchored in a tapped housing, and the joint is clamped with a nut on the exposed end. Studs suit joints that are assembled and disassembled repeatedly, since the housing threads are not worked at each removal.
What is a stepped stud used for?
A stepped stud has a different thread size or fit on each end, typically an oversize or interference-fit tap end that anchors firmly in the housing and a standard nut end for the clamped part. This construction is common on engine cases, gearboxes, and accessory mounts where a permanent, tight anchor is needed in a softer housing material.
How are aerospace studs installed and locked?
Practices vary by design. Tap ends are typically installed with stud driver tooling to a specified projection height, with retention coming from thread interference; some drawings add a primer or retaining compound, and nut ends are commonly secured with self-locking nuts or lockwire. Always follow the engineering drawing and the applicable process specification.
What materials are aerospace studs made from?
Most commonly cadmium or IVD aluminum plated alloy steel for strength, and CRES grades such as A286 where corrosion resistance or elevated temperature capability is required, typical of engine and nacelle zones. The governing standard and dash number define the material and finish for each part.
Can you quote OEM proprietary stud part numbers?
Yes. Alongside NAS and MS style standards, the catalog includes Boeing, Airbus, and other OEM proprietary studs. Search the exact part number for a fast online quote, or submit your full bill of materials through the quote page and we will price the complete requirement.
Need Aerospace Studs?
Browse the catalog by NAS, MS, Boeing, or Airbus part number and get a fast online quote with full AS9120 traceability.
Browse the Stud Catalog