Screws, bolts, nuts, washers, threaded inserts, locking wire and rivets.
What decides the purchase: Thread size and standard (ISO metric, UNF) · material · strength class · head type · locking method · finish
Typical materials: A286, titanium 6Al-4V, stainless A2/A4, Inconel
What changes when it has to fly: Cadmium and pure-tin plating are banned for space because of whisker growth and outgassing. Locking method must be positive — vibration will undo anything relying on friction alone.
Engineering reference written by us, not a supplier claim.
2 Indian suppliers in this index make fasteners. They are Hical Technologies Pvt Ltd, Pfeiffer Vacuum India Pvt Limited. 1 hold published certifications. 2 products indexed.
| Supplier | Location | Certifications | Evidence |
|---|---|---|---|
| Hical Technologies Pvt Ltd | India | 7 published | product indexed |
| Pfeiffer Vacuum India Pvt Limited | India | — | product indexed |
Certifications are as published by each company and unverified. "Product indexed" means we hold an actual product record; "stated capability" means the company says it does this.