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Fasteners · Hex bolt · ASTM A193

SS 316 / 316L Hex BoltASTM A193 · ASME B18.2.1 · Manufacturer, stockist & exporter, India

AISI 316L · UNS S31603

An SS 316 / 316L hex bolt is a bolt with a hexagonal head, made from SS 316 / 316L to ASTM A193 B8M · A194 8M. Hex bolts join flanges, structures and equipment where one side is accessible for the head. Dimensions to ASME B18.2.1 or DIN 931 / 933.

  • ASTM A193
  • ASME B18.2.1
  • EN 10204 3.1 / 3.2
  • Export packing

Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026

Price & availability

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What is an SS 316 / 316L Hex Bolt?

What it is
A bolt with a hexagonal head
Material
ASTM A193 B8M · A194 8M
Dimensions
ASME B18.2.1 · DIN 931 / 933
Grade
SS 316 / 316L · UNS S31603
Best at
Chloride-bearing process fluids, marine air and pharmaceutical service
heavy hex nutL — lengthd
TYPE · HEX BOLTMATL · ASTM A193DIM · ASME B18.2.1GRADE · 316L

SS 316 / 316L Hex Bolt Specification

ProductSS 316 / 316L Hex Bolt
Material standardASTM A193 B8M · A194 8M
Dimensional standardASME B18.2.1 · DIN 931 / 933
SizesM10 – M64 · ½" – 4" (others on request)
ThreadsUNC · UN-8 · metric coarse
TestingPMI · dimensional · NDT and IGC on request
DocumentsEN 10204 3.1 · 3.2 with third-party inspection

When to Choose a Hex Bolt

Hex bolts join flanges, structures and equipment where one side is accessible for the head. Dimensions to ASME B18.2.1 or DIN 931 / 933.

  • Partially or fully threaded
  • ASME B18.2.1 / DIN 931 / DIN 933
  • Supplied with nuts and washers

SS 316 / 316L Hex Bolt Chemical Composition

ElementWeight %
Chromium16.0 – 18.0
Nickel10.0 – 14.0
Molybdenum2.00 – 3.00
Carbon0.030 max
Manganese2.00 max
Silicon0.75 max
Nitrogen0.10 max
Phosphorus0.045 max

SS 316 / 316L Hex Bolt Mechanical Properties

Annealed plate & sheet (316L)Value
Tensile strength485 MPa · 70 ksi
Yield strength 0.2%170 MPa · 25 ksi
Elongation40%
Hardness217 HB max

Full chemistry, properties and equivalents are on the SS 316 / 316L grade page.

SS 316 / 316L Hex Bolts for export

FOB / CIF · Nhava Sheva (JNPT), Mumbai

SS 316 / 316L Hex Bolt — questions buyers ask

DIN 931 or DIN 933?

DIN 931 bolts are partly threaded; DIN 933 are fully threaded.

Which standard covers SS 316 / 316L hex bolts?

The material is ASTM A193 B8M · A194 8M; dimensions follow ASME B18.2.1 · DIN 931 / 933. Always state both on your purchase order, with the edition if your project specifies one.

What decides the price of a SS 316 / 316L hex bolt?

The alloy price, the size and dimensions, quantity, and the testing and documents required. Send your list and we quote the same working day.

What documents do you supply?

EN 10204 3.1 mill certificates as standard, 3.2 with third-party inspection on request, plus dimensional and PMI reports.

Reviewed by the technical team, Kanak Steel & Engineering Co.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026
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