Stainless Steel AISI 316 Fasteners

AISI 4130 Bolts

Grade 316 is the standard molybdenum-bearing grade, second in importance to 304 amongst the austenitic stainless steels. The molybdenum gives 316 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments. It has excellent forming and welding characteristics. It is readily brake or roll formed into a variety of parts for applications in the industrial, architectural, and transportation fields. Grade 316 also has outstanding welding characteristics. Post-weld annealing is not required when welding thin sections. The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures.

Hex Bolts, Heavy Hex Bolts, Socket Head Cap Screws, Set Screws, Allen Head Bolts, Stud Bolts, Threaded Rods, Hex Nuts, Heavy Hex Nuts are common 316 Stainless Steel Fasteners.

Chemical Composition

  • Carbon C 0.08
  • Manganese Mn 2.0
  • Silicon Si 0.75
  • Phosphorous P 0.045
  • Sulphur S 0.030
  • Chromium Cr 16.0-18.0
  • Molybdenum Mo 2.00-3.00
  • Nickel Ni 10.0-14.0
  • Nitrogen N 0.10

Mechanical properties

  • Tensile Strength (MPa): 515
  • 0.2% Yield (MPa) : 205
  • Elongation(%) : 40
  • Hardness, Brinell : 217

AISI 316 Grade Equivalent

AISI Grade European Name UNS Designation DIN Equivalent SUS
316   S31600 EN 1.4401 316

AISI 316 Fastening Products

AISI 316 Specifications

Specifications Material Form Products
ASTM A193 Grade B8M, B8MA    
ASTM A194 Grade 8M, 8MA    
ASTM A182 F316    
ASTM A276 UNS S31600    
ASTM A479 UNS S31600    
ASTM A240 UNS S31600    
ASTM A593 Type 316    
ASTM A594 Type 316    
ASTM A2281 Type 316    

Applications for SS 316 Fasteners

  • Food & Beverage Industries
  • Medical Equipment Fastening.
  • Coasting Architectural Fastening
  • Marine Constructions
  • Chemical Processing Plants
  • Pharmaceutical Industries
  • Water Filtration Equipments