M8 316 SS A4-80 METAL BOLT Carriage Bolt Large Round Head, Mirror Polish

Product Description
316L rod is hot-forged, then CNC-formed to keep the dome height within ±0.1 mm; final electropolishing drops Ra to 0.2 µm, eliminating micro-crevices where chlorides hide.
| Industry | Usage |
|---|---|
| Automotive | High-strength applications in engines, heavy-duty machinery, and bridge construction |
| Mechanical | Connecting mechanical parts, circuit boards, engines, transmissions in various industries |
| Energy | Connecting power generation equipment and transmission lines |
| Architectural |
Building structures, shipbuilding, and petrochemical equipment |
Mirror-finish bolts secure stainless benches on promenade decks facing Atlantic spray; the low-glare head keeps tourist selfies scratch-free.
Key Features
A4-80 gives 800 MPa strength plus pitting resistance equivalent to 904L; mirror polish reduces bio-film adhesion, lowering quayside cleaning bills 25 %.



