A4 STAINLESS

Grades and Corrosion Resistance

The primary distinction in stainless steel socket screws is their grade, which determines their chemical composition and suitability for different environments. 

  • A4 Stainless Steel (Grade 316): Often referred to as "marine grade" stainless steel.
    • Composition: Contains about 16% chromium, 10% nickel, and crucially, 2-3% molybdenum.
    • Corrosion Resistance: The addition of molybdenum provides superior resistance to pitting and crevice corrosion, especially in chloride-rich or harsh chemical environments like saltwater, swimming pools, and chemical plants.
    • Applications: Ideal for marine hardware, coastal structures, and applications involving aggressive chemicals. 
A4 STAINLESS
BOLTS

BOLTS
SETSCREWS

SETSCREWS