Need 500-Hour Salt-Spray Proof Fasteners? A4-70 Stainless Hex Bolts Deliver?

Need 500-Hour Salt-Spray Proof Fasteners? A4-70 Stainless Hex Bolts Deliver?

1.Meet the A4-70 Hex Bolt

• 316 austenitic steel, cold-worked to 700 MPa tensile strength
• Full-thread geometry, DIN/ISO 4017 certified
• 1,000-hour neutral-salt-spray rating (ASTM B117)
• Non-magnetic, chloride-proof, pitting-proof
• Available M5–M36, 10–300 mm length, matte or mirror finish

  
  

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2.Upgrade Every Assembly—Go A4-70 or Go Home

Every bolt looks the same… until the salt-spray starts, the acids leak, or the torque gun slips.
That’s the moment you discover the real cost of “ordinary” stainless.

3.Service That Shows Up Before You Ask