Manufactures & Suppliers of Pipes, Tubes, Flanges, Pipe Fitting & Fasteners
Manufactures & Suppliers of Pipes, Tubes, Flanges, Pipe Fitting & Fasteners
Natron Steel Pipe Tube is a leading manufacturer of stainless steel hex bolts, offering a variety of grades to suit different requirements. Our range includes stainless steel hex bolts, crafted primarily from 18/8 grade austenitic stainless steel for reliable performance. These bolts generally consist of carbon, manganese, phosphorus, sulfur, along with 18% chromium and 8% nickel, although specific compositions may vary by grade.
Stainless steel hex bolts provide excellent torque strength and are easy to install with standard tools. For applications that require high corrosion resistance, such as those in seawater and marine environments, our stainless steel hex bolts are an ideal choice, specifically designed to resist chloride-induced stress corrosion cracking. The molybdenum content in 316-grade bolts enhances these corrosion-resistant properties. However, SS hex bolts remain the most popular due to their balanced strength, corrosion resistance, and cost-effectiveness.
Various specifications and material grades are available, including the stainless steel hex bolt A2-70, designed for specialized applications. Bolt sizes range from ¼ inch to 2 ½ inches, with dimensions varying across standards.
Product name | Stainless Steel Hex Bolts |
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Standard | ISO 4017, DIN931, GB5783, DIN, ASTM, ANSI, JIS, EN, AS |
DIN Standard | B.S. DIN933 DIN931 DIN934 DIN912 DIN603 DIN6923 |
|
Passivation /plain |
Size | M2 - M100 |
Diameter | M3-M60 |
Length | 6mm-500mm |
Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc |
Neck type | Hex, Square, Triangular, Oval & Knurled etc |
Drive type | Phil, Slotted, Hex socket, Torx & square slot etc |
Stainless Steel Hex Bolts Application | Wind tower, Nuclear power, Railway, Automotive industry, Construction, Electronic industry |
Dimensions | ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded. |
Drive Style | Type I |
Stainless Steel Hex Bolts Material | 18-8 Stainless Steel, stainless steel ss 304/ SS316 A2/A4, SS201, SS303, SS304, SS316, SS316L, SS904L, A2-70; A4-70; A4-80 |
Thread Requirements | ASME B1.1, UNC & UNF, Class 2A (Fastenal will inspect and accept parts with a 1A no-go gauge) |
Finish | Per ASTM A380/A380M |
Finishing | Zinc Plated (Yellow, White, Blue, Black), Hop Dip Galvanized (HDG) phosphorization, Black Oxide, Geomet, Dacroment, anodization, Nickel plated, Zinc-Nickel plated, Brass Plated, Tin Plated, Black Plated, Copper Plated, Gold Plated, Salt fog test |
Others | OEM, ODM, ±0.03MM tolerance |
Surface treatment of stainless steel Hex Bolts |
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Coatings | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
Tolerance | +/-0.01mm to +/-0.05mm |
Stainless Steel Hex Bolts are externally threaded fasteners featuring a six-sided head, intended for use with a wrench for secure installation. These bolts can come with either partial or full threading and are available with hexagonal caps or tap heads. The SS 304 Hex Bolt, a sturdy bolt with a hex head, is commonly used to join wood-to-wood or metal-to-wood connections. Due to its tendency to spin during tightening, it’s necessary to secure the bolt head with a socket or wrench while using a second wrench on the nut.
The A2-70 Hex Head Bolt is an acid-resistant austenitic stainless steel grade that has been cold-worked to achieve a minimum tensile strength of 700N/mm² (MPa). Stainless Steel Hex Bolts possess a range of valuable properties, making them ideal for use in manufacturing components and parts across numerous industrial applications.
Bolt Size | A (max) | B | C (min) | D | E | F Thread Length for Bolt Length |
||
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max | min | 6" and shorter |
over 6" | |||||
1/4" | 0.260 | 7/16 | 0.484 | 11/64 | 0.03 | 0.01 | 0.750 | 1.000 |
5/16" | 0.324 | 1/2 | 0.552 | 7/32 | 0.03 | 0.01 | 0.875 | 1.125 |
3/8" | 0.388 | 9/16 | 0.620 | 1/4 | 0.03 | 0.01 | 1.000 | 1.250 |
7/16" | 0.452 | 5/8 | 0.687 | 19/64 | 0.03 | 0.01 | 1.125 | 1.375 |
1/2" | 0.515 | 3/4 | 0.826 | 11/32 | 0.03 | 0.01 | 1.250 | 1.500 |
5/8" | 0.642 | 15/16 | 1.033 | 27/64 | 0.06 | 0.02 | 1.500 | 1.750 |
3/4" | 0.768 | 1-1/8 | 1.240 | 1/2 | 0.06 | 0.02 | 1.750 | 2.000 |
7/8" | 0.895 | 1-5/16 | 1.447 | 37/64 | 0.06 | 0.02 | 2.000 | 2.250 |
1" | 1.022 | 1-1/2 | 1.653 | 43/64 | 0.09 | 0.03 | 2.250 | 2.500 |
1-1/8" | 1.149 | 1-11/16 | 1.859 | 3/4 | 0.09 | 0.03 | 2.500 | 2.750 |
1-1/4" | 1.277 | 1-7/8 | 2.066 | 27/32 | 0.09 | 0.03 | 2.750 | 3.000 |
1-3/8" | 1.404 | 2-1/16 | 2.273 | 29/32 | 0.09 | 0.03 | 3.000 | 3.250 |
1-1/2" | 1.531 | 2-1/4 | 2.480 | 1 | 0.09 | 0.03 | 3.250 | 3.500 |
1-3/4" | 1.785 | 2-5/8 | 2.893 | 1-5/32 | 0.12 | 0.04 | 3.750 | 4.000 |
2" | 2.039 | 3 | 3.306 | 1-11/32 | 0.12 | 0.04 | 4.250 | 4.500 |
2-1/4" | 2.305 | 3-3/8 | 3.719 | 1-1/2 | 0.19 | 0.06 | 4.750 | 5.000 |
2-1/2" | 2.559 | 3-3/4 | 4.133 | 1-21/32 | 0.19 | 0.06 | 5.250 | 5.500 |
2-3/4" | 2.837 | 4-1/8 | 4.546 | 1-13/16 | 0.19 | 0.06 | 5.750 | 6.000 |
3" | 3.081 | 4-1/2 | 4.959 | 2 | 0.19 | 0.06 | 6.250 | 6.500 |
3-1/4" | 3.335 | 4-7/8 | 5.372 | 2-3/16 | 0.19 | 0.06 | 6.750 | 7.000 |
3-1/2" | 3.589 | 5-1/4 | 5.786 | 2-5/16 | 0.19 | 0.06 | 7.250 | 7.500 |
3-3/4" | 3.858 | 5-5/8 | 6.198 | 2-1/2 | 0.19 | 0.06 | 7.750 | 8.000 |
4" | 4.111 | 6 | 6.612 | 2-11/16 | 0.19 | 0.06 | 8.250 | 8.500 |
LENGTH in mm | DIAMETER (METRIC) | |||||||||
M5 | M6 | M12 | M8 | M10 | M16 | M14 | M20 | M18 | M22 | |
16 | 0.448 | 0.743 | 1.590 | 3.211 | ||||||
20 | 0.598 | 0.812 | 4.892 | 1.711 | 3.411 | |||||
25 | 0.660 | 0.897 | 5.252 | 1.871 | 3.660 | 8.170 | ||||
30 | 0.737 | 1.010 | 5.574 | 2.070 | 3.912 | 10.707 | 9.690 | 18.657 | ||
35 | 0.804 | 1.120 | 5.974 | 2.271 | 4.223 | 11.416 | 10.000 | 19.608 | 16.026 | |
40 | 0.881 | 1.230 | 6.410 | 2.470 | 4.533 | 12.107 | 10.288 | 20.747 | 16.667 | |
45 | 0.958 | 1.340 | 6.859 | 2.671 | 4.840 | 12.821 | 10.504 | 21.739 | 17.241 | |
50 | 1.030 | 1.450 | 7.299 | 2.870 | 5.155 | 13.624 | 11.261 | 22.727 | 17.857 | 28.409 |
55 | 1.560 | 7.740 | 3.071 | 5.464 | 14.409 | 11.628 | 23.810 | 18.868 | 30.120 | |
60 | 1.670 | 8.183 | 3.270 | 5.774 | 15.244 | 12.255 | 25.126 | 20.000 | 32.051 | |
65 | 1.781 | 8.621 | 3.472 | 6.083 | 16.026 | 12.626 | 26.455 | 21.008 | 34.014 | |
70 | 1.890 | 9.058 | 3.671 | 6.394 | 16.835 | 12.987 | 27.778 | 22.124 | 35.461 | |
75 | 2.000 | 9.506 | 3.873 | 6.702 | 17.606 | 13.228 | 29.070 | 23.256 | 39.063 | |
80 | 2.111 | 10.000 | 4.072 | 7.013 | 18.248 | 13.889 | 30.303 | 24.510 | 40.000 | |
90 | 10.917 | 4.472 | 7.634 | 19.841 | 14.925 | 33.113 | 26.042 | 41.667 | ||
100 | 11.820 | 4.873 | 8.251 | 21.459 | 16.340 | 35.714 | 27.778 | 46.296 | ||
110 | 12.723 | 8.881 | 23.041 | 17.730 | 38.168 | 31.250 | 47.170 | |||
120 | 13.624 | 9.506 | 24.631 | 18.797 | 40.984 | 32.895 | 50.000 | |||
130 | 14.535 | 10.101 | 26.316 | 20.000 | 43.478 | 34.722 | 52.632 | |||
140 | 15.432 | 10.707 | 27.933 | 20.833 | 46.296 | 35.461 | 55.556 | |||
150 | 16.340 | 11.312 | 29.412 | 22.222 | 48.544 | 37.594 | 58.824 | |||
160 | 17.241 | 11.905 | 31.056 | 24.272 | 50.505 | 40.984 | 61.728 | |||
170 | 18.116 | 12.500 | 32.680 | 53.191 | 64.935 | |||||
180 | 19.011 | 13.123 | 34.247 | 26.882 | 55.556 | 67.568 | ||||
190 | 19.920 | 13.736 | 35.971 | 58.140 | 70.423 | |||||
200 | 20.833 | 14.327 | 37.594 | 29.586 | 60.976 | 49.020 | 73.529 | |||
220 | 22.624 | 15.528 | 40.650 | 65.789 | 79.365 | |||||
240 | 24.510 | 16.722 | 43.860 | 71.429 | 84.746 | |||||
250 | 25.381 | 17.301 | 45.455 | 74.627 | 87.719 | |||||
260 | 26.316 | 17.921 | 47.170 | 76.923 | 90.909 | |||||
280 | 28.090 | 19.157 | 50.505 | 81.967 | 98.039 | |||||
300 | 29.940 | 20.325 | 53.763 | 87.719 | 104.167 | |||||
320 | 31.646 | 56.818 | 92.593 | |||||||
340 | 33.557 | 60.241 | 98.039 | |||||||
360 | 35.211 | 63.291 | 104.167 | |||||||
380 | 37.037 | 66.667 | 108.696 | |||||||
400 | 39.063 | 69.444 | 113.636 |