Stainless Steel Hex Bolts

Stainless Steel Hex Bolts are the most common type of industrial fastener, featuring a hexagonal head designed to be tightened with a wrench or socket. Zeron Fasteners manufactures high-precision hex bolts in a variety of stainless steel grades including SS 304, 316, 310, and 904L. These bolts are engineered to provide high tensile strength and exceptional resistance to corrosion, moisture, and chemical exposure. Available in both full-thread and half-thread configurations, our stainless steel hex bolts are essential for structural steelwork, heavy machinery, automotive assembly, and construction projects where a reliable and long-lasting connection is required.

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Stainless Steel Hex Bolts

Technical Specifications

Standard DIN 931, DIN 933, ISO 4014, ISO 4017, ASME B18.2.1
Size Range M3 to M100 / 1/4" to 4" Diameter
Length 10mm to 500mm
Thread UNC, UNF, Metric Coarse, Metric Fine
Finish Plain, Passivated, Bright Polished

Chemical Composition of Common Grades

Element SS 304 (%) SS 316 (%) SS 310 (%)
Chromium (Cr) 18.0 - 20.0 16.0 - 18.0 24.0 - 26.0
Nickel (Ni) 8.0 - 10.5 10.0 - 14.0 19.0 - 22.0
Molybdenum (Mo) - 2.0 - 3.0 -
Carbon (C) 0.08 max 0.08 max 0.25 max

Mechanical Properties

Property Austenitic (A2/A4) Grade 310
Tensile Strength (min) 515 - 700 MPa 515 MPa
Yield Strength (min) 205 - 450 MPa 205 MPa
Elongation (min) 35% - 45% 40%
Hardness (Max) 215 HBW 217 HBW

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