Description
1720384 SCREW HEX SOCKET HEAD M3X8 SSTEEL A4 BN6 — BOLTON SKU 55153.
About the 1720384 Fastener
Bossard article 1720384 is a hexagon socket head cap screw, thread size M3, 8 mm nominal length, in A4 stainless steel, carried under Bossard catalogue reference BN 6 per the item designation. Socket head cap screws have a cylindrical head with an internal hexagon drive, allowing high preload from a compact head that can be tightened with a hex key in counterbored holes and confined spaces. The A4 material class in the designation is the acid-resistant austenitic chromium-nickel-molybdenum stainless steel grade of the ISO 3506 fastener-material system, generally selected where improved corrosion resistance is required over standard A2 parts. Bossard is a Swiss-headquartered fastener manufacturer and distributor whose BN (Bossard Norm) references map articles to the governing dimensional standards; the part is identified here by the manufacturer article number stated in the designation.
Key specifications
| Type | Hexagon socket head cap screw |
|---|---|
| Thread size | M3 |
| Nominal length | 8 mm |
| Material | A4 stainless steel |
| Manufacturer | Bossard |
| Manufacturer references | Article 1720384, catalogue reference BN 6 (as designated) |
Typical applications
A4 stainless socket cap screws are used in equipment builds, fixtures and structural sub-assemblies across aerospace, defence, UAV and marine-influenced environments where corrosion resistance matters. The M3 size is a staple of instrument, enclosure and light mechanism assembly in production and MRO workshops.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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