Aerospace fasteners are made to published military and industry standards, so every bolt, nut, washer and rivet is identical to its drawing and fully traceable. We supply the standard aerospace families for aircraft, helicopters, UAVs, defence ground equipment, MRO and test rigs.
Three standard systems cover most parts: AN (Army-Navy, the original series), MS (Military Standard) and NAS (National Aerospace Standard, often higher strength or closer tolerance). NASM is the current NAS-maintained version of many MS standards. European programmes use EN / ASNA and LN numbers.
Common AN, MS and NAS sizes in alloy steel and stainless steel are usually available ex-stock in India. Superalloy, titanium and special NAS parts are imported for you from AS9120-certified distributors, with certificate of conformity, mill test reports and full lot traceability. Ask us for current stock and lead time.
Specifications
| Standard systems | AN, MS, NAS, NASM, EN / ASNA, LN |
|---|---|
| Families | Bolts, screws, nuts, washers, solid and blind rivets, pins and collars, inserts |
| Materials | Alloy steel, CRES 300-series, 17-4PH, A286, Inconel 718, Waspaloy, MP35N, Ti-6Al-4V, aluminium alloys |
| Finishes | Cadmium, zinc-nickel, passivated, silver plated, MoS2 / dry-film lube, anodised |
| Documents | Certificate of conformity, mill test report, lot traceability |
| Supply in India | Ex-stock common sizes; imported and made-to-drawing parts on order |
Aerospace materials: typical properties
| Material | Typical tensile strength | Service temperature (approx.) | Where used |
|---|---|---|---|
| Alloy steel 4130 / 4140 / 8740 | 125–160 ksi (860–1100 MPa) | up to ~230 °C (cad plated) | AN and NAS bolts, general airframe |
| H-11 tool steel | 260–300 ksi (1790–2070 MPa) | up to ~315 °C | Very high-strength bolts |
| CRES 302 / 304 / 316 | 70–125 ksi (480–860 MPa) | up to ~425 °C | Corrosion-resistant screws and nuts |
| 17-4PH (H1025) | 155 ksi (1070 MPa) | up to ~315 °C | Strong, corrosion-resistant bolts |
| A286 (AMS 5737) | 160 ksi (1100 MPa) | up to ~650 °C | Engine and hot-section bolts and nuts; non-magnetic |
| Inconel 718 (AMS 5662 / 5663) | 180–220 ksi (1240–1520 MPa) | up to ~650 °C | Turbine engines, high-load hot joints |
| Waspaloy (AMS 5707) | 160–175 ksi (1100–1200 MPa) | up to ~730 °C | Hottest engine zones |
| MP35N (AMS 5844) | 260 ksi (1790 MPa) | up to ~400 °C | Highest strength with corrosion resistance |
| Ti-6Al-4V (AMS 4928 / 4967) | 160 ksi (1100 MPa); shear 95 ksi | up to ~315 °C | Weight-critical structure, about 44% lighter than steel |
| Aluminium 2024-T4 / 7075-T73 | 62–68 ksi (430–470 MPa) | up to ~120 °C | Rivets and light screws |
Key features
- Made to AN, MS and NAS standards
- CoC, mill certificates and lot traceability
- Ex-stock and import supply in India
Applications
Need a size, grade or finish not listed? We also make special and non-standard parts to drawing. Ask us →
You may also need
Aerospace Bolts & Screws (AN, NAS, MS)AN3–AN20 hex bolts, NAS close-tolerance bolts, NAS socket cap screws and MS countersunk screws.View details →
Aerospace Nuts & WashersMS21042, MS21044, AN365, AN310 nuts and NAS1149 / AN960 washers.View details →
Aerospace Rivets, Pins & CollarsMS20470 / MS20426 solid rivets, blind structural rivets, Hi-Lok-type pins and collars, clevis and cotter pins.View details →
High-Temperature Alloy Fasteners (A286, Inconel)A286, Inconel 718, Waspaloy, MP35N and 17-4PH bolts, nuts and studs for heat and corrosion.View details →