Stainless Steel Bolts & Fasteners

With a vast product range and onsite manufacturing, we have the capability to meet your needs.

All grades of austenitic (A1-A5) and martensitic (C1-C4) stainless steel bolting can be produced, from class 50 through to 100.

When compared to Carbon steel, the additional Chromium content in stainless steel helps to protect against corrosion.

 

Our Products (materials) - Stainless

Properties and Grades of Stainless Steel

We supply stainless steel fasteners in a variety of grades to suit a wide range of applications.

Grade 304 (also known as A2 or B8) is one of the most commonly used stainless steels. With a composition of 18% chromium and 8% nickel, it offers excellent corrosion resistance and is widely used across general engineering and commercial applications.

Grade 316 (A4 or B8M) offers enhanced corrosion resistance, thanks to the addition of molybdenum and a higher nickel content. This makes it particularly suitable for more demanding environments, including chemical processing, marine settings, and medical equipment.

While both grades offer similar mechanical properties, 316 provides superior protection against aggressive chemicals, acids, and chlorides — making it the preferred choice where corrosion resistance is critical.

 MaterialsGrades
Stainless Steel303, 304, 310, 316, 317, 321, 347, 410, 420, 431, 904LA2-50, A2-70, A2-80, A4-50, A4-70, A4-80, A4-100, A193 / A320
Range of special fastener manufacture

Range of special fastener manufacture

  • Special Head Shapes to specification
  • Diameter <= M100 (4″)
  • Length <= 900mm (36″)
  • Hexagon Head Bolts & Square Head Bolts
  • Cup Square Hexagon & Cup Round Hexagon
  • Csk Square Bolts / Ploughbolts
  • Cup Nib Bolts & Csk Nib Bolts
  • Socket Screws
  • Allthread & Engineers Studs
  • Fullnuts and Nylon Insert Nuts
  • Castle and Slotted Nuts

Choose Thomas Smith Fasteners

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