As one of the more experienced stainless steel fasteners manufacturers in India, we offer all our clients very competitive prices for the various components we produce. Because austenitic class stainless steel commonly utilized alloy, there are several grades that can be used to produce these fasteners. For instance, austenitic stainless steel grades have high ductility and formability, the alloy can be shaped into various forms rather easily. In addition to the aforementioned properties, the Stainless Steel Threaded Rod, depending on the grade offers superior resistance to corrosion across various media.

Stainless Steel Nut Bolt

Stainless Steel Nut Bolt

If required, the chemistry of the ASTM A193 SS Washers can be modified in order to cater to application specific needs such as welding or heat resistance. On the other hand, stainless steels belonging to the ferritic category have good impact strength and hardness, properties which are known to be used in demanding operations. Any Stainless Steel Nut Bolt made from austenitic or ferritic grades under the ASTM A193 specification is intended to be used for not only high temperature or high pressure service, but also for other special purpose applications as well.


The specification moreover has a set of requirements with regards to Ferritic steels. This steel grade is to be properly heat treated at first, in such a manner that best suits the high temperature characteristics of each grade. Immediately after being rolled or forged, the SS Stud Bolts material needs to be cooled. Cooling the ferritic grade Stainless steel screws must be performed at a temperature below the cooling transformation range.

Stainless Steel Nut Bolt standard size and specification

Specification ASTM A193/ ASME SA193
Lengths From 3 upto 200 Millimetre
In Form of: Round, Threading, Hex, Square as per Gauge Etc.
Sizing 3/6 inch upto 2 inch | M3 – M56
Stainless steel screws Threads BSF, METRIC, UNC, BSW, UNF or as per needs

Stainless Steel Bolts Torque Chart

Sizes of Bolts (Inches)
Threads/ Inch
Standard Dry Torque (Inch-Pounds)
304/ L
316/ L
5/8 11 1110 1160
18 1244 1301
3/4 10 1530 1582
16 1490 1558
9/16 12 682 713
18 752 787
7/8 9 2328 2430
14 2318 2420
1 8 3440 3595
14 3110 3250
Sizes of Bolts (Inches)
Threads/ Inch
Standard Dry Torque (Inch-Pounds)
304/ L
316/ L
1 1/4 7 523 546
12 480 504
1 1/8 7 413 432
12 390 408
1 1/2 6 888 930
12 703 732

Dimensional Table of SS Stud Bolts

Dimensional Table of SS Stud Bolts

Minimal Size (D) THE FLATS HEAD THICKNESS BODY DIAMETER CORNERS
F (MAX) F (MIN) H (MAX) H (MIN) D (MAX) D (MIN) C (MAX) C (MIN)
m16 24.00 23.67 10.32 9.68 16.00 15.73 27.71 26.75
m10 17.00 15.73 6.63 6.17 10.00 9.78 18.48 17.77
m48 75.00 72.60 31.07 28.93 48.00 47.38 86.60 82.76
m100 145.00 140.00 63.9 60.10 90.00 99.13 167.43 159.60
m12 19.00 17.73 7.76 4.24 12.00 11.73 20.78 20.03
m14 22.00 20.67 9.09 8.51 14.00 13.73 24.25 23.35
m90 130.00 125.50 57.74 54.26 90.00 89.13 150.11 143.07
m24 36.00 35.00 15.44 14.56 24.00 23.67 41.57 39.55
m30 46.00 45.00 19.48 17.92 30.00 29.67 53.12 50.85
m20 30.00 29.16 12.88 12.12 20.00 19.67 34.64 32.95
m80 115.00 111.00 51.58 48.42 80.00 79.26 132.72 126.54
m36 55.00 53.80 23.38 21.63 36.00 35.61 63.51 60.79
m42 65.00 62.90 26.97 25.03 42.00 41.38 75.06 71.71
m64 95.00 91.80 41.32 38.68 64.00 63.26 109.70 104.65
m72 105.00 101.40 46.45 43.55 72.00 71.26 121.24 115.60
m56 85.00 82.20 36.2 33.80 56.00 55.26 98.15 93.71

SS Metric Fasteners

Types Property Class Sizes Standards
Plain Washer A2, A4 M3 to M64 DIN 125 A
Hex Head Screw (Full Thread) A2 – 70/80, A4 – 70/80 M3 to M30 DIN 933 / ISO 4017
Socket Head Cap Screw A2 – 70/80, A4 – 70/80 M3 to M30 DIN 912 / ISO 4762
Square – Section Spring Washer A2, A4 M3 to M36 DIN 7980
Flat – Section Spring Washer A2, A4 M3 to M36 DIN 127 B
Hex Head Bolt (Partial Thread) A2 – 70/80, A4 – 70/80 M4 to M30 DIN 931 / ISO 4014
Hex Nut A2 – 70/80, A4 – 70/80 M3 to M30 DIN 934 / ISO 4032
Threaded Rod A2 – 70/80, A4 – 70/80 M3 to M36 DIN 975