ASTM A194 Gr 4 Screws

ASTM A194 Gr 4 Screws are high-strength fasteners manufactured from alloy steel and designed to perform reliably in high-pressure, high-temperature and corrosive industrial environments. These screws are widely used in petrochemical plants, power generation units, valves, flanges, pipelines and heavy engineering equipment. Zeron Fasteners provides precision-engineered ASTM A194 Grade 4 Screws that offer excellent mechanical strength, durability and resistance to stress and fatigue. Their robust structure makes them suitable for bolting assemblies in demanding applications where secure and long-lasting fastening is essential.

Related Products

ASTM A194 Gr 4 Stud Bolts ASTM A194 Gr 4 Hex Bolts ASTM A194 Washers ASTM A194 Alloy Steel Screws ASTM A194 Gr 4 Nuts

ASTM A194 Gr 4 Screws Chemical Composition

Element Composition (%)
Carbon (C) 0.40 – 0.50
Manganese (Mn) 0.60 – 0.90
Phosphorus (P) 0.040 max
Sulfur (S) 0.050 max
Silicon (Si) 0.15 – 0.35
Chromium (Cr) 0.80 – 1.10
Molybdenum (Mo) 0.15 – 0.25

ASTM A194 Gr 4 Screws Mechanical Properties

Mechanical Property Value
Tensile Strength 760 MPa min
Yield Strength 550 MPa min
Hardness HRB 89 – 95
Elongation 18% min

ASTM A194 Gr 4 Screws Feature Products

High Strength Industrial Screws

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