The Stainless Steel Nut Bolt can come under B7, B16, B8, B8M and so on. These different grades also differentiate the chemical compositions. There are alloy steel, chromium molybdenum vanadium alloys, heat treated and many other types. The sizes range differently such as the M10 Stainless Steel Nuts. These are used in high pressure, high temperature applications, valves, flanges, fittings, pressure vessels, chemical applications, petroleum applications and many other industrial applications. As a leading SS Nut Bolt manufacturer in India, we produce and supply the fasteners in different material grades and types. There are also different specifications and standards such as the F593c Black Stainless Steel Bolts. The black bolts are coated with black oxides so that the corrosion resistance of the bolts improves. Please feel free to contact us for more information on the fasteners and their prices.

Stainless Steel Fasteners Specification chart



SS GRADE 8.8 Fasteners Specification

ASTM A193 B8, B8M, B6, B8T, B8C, A194 G8, 8M, 8C, 8T

Length of SS Fasteners

3 to 200 MM

Sizes of Stainless Steel Fasteners

M3 – M56
3/6 Inch to 2 Inch

Stainless Steel Machine Screws avaiable Size

M1.6 – M12

Size of Stainless Steel Hex Bolt

M2 – M100

Stainless Steel Grades

316, 316L, 304, 304L, 310, 317L, 321, 347, 410, 420, 422, 446, 202

Chemical Compatibility Of SAF 2507 Fasteners


Content (%)

Chromium, Cr

24 – 26

Nickel, Ni

6 – 8

Molybdenum, Mo

3 – 5

Manganese, Mn

1.20 max

Silicon, Si

0.80 max

Copper, Cu

0.50 max

Nitrogen, N

0.24 – 0.32

Phosphorous, P

0.035 max

Carbon, C

0.030 max

Sulfur, S

0.020 max

Iron, Fe


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