Monel alloys contain nickel and copper in a very high quantity, making them amongst the most resilient metals in the market. Since the content of both these elements is very high, the properties they offer range from good to outstanding. The clients of monel fasteners suppliers belong to different industries. In particular, these fasteners work well in the hydrocarbon processing industry, where they are a part of several pieces of equipment. The use of these alloys is limited to applications with highly corrosive environments.
Both copper and nickel are commodity metals, and so fluctuations in their price are common. Monel, unlike stainless steel, makes use of a higher quantity of both these traded metals. Hence, Monel K500 Bolts And Nuts tend to be more expensive than stainless steel ones. However, the high cost of these alloys is justified by the exceptional performance these fasteners deliver across multiple industrial sectors. In the aerospace industry, Alloy UNS N05500 Bolts are used to fasten equipment that may be exposed to elevated temperatures. At high temperatures, there are chances of steel alloys deforming and coming undone. Amongst all the engineering alloys, monel is resistant to hydrofluoric acid. Hydrofluoric acid is highly corrosive even in low concentrations. Yet, many suppliers recommend using the monel k500 fasteners in applications that deal with hydrofluoric acid, simply because this alloy can tolerate a corrosive solution across all solutions at a wide temperature range. Moreover, under reducing conditions, the monel 400 fasteners are resilient to the effects of hydrochloric acid and sulfuric acid. Although these fasteners can be used in marine environments, it is necessary that the UNS N04400 Bolts remain insulated from other metals because it is likely to succumb to galvanic corrosion.
| Specifications | ASTM A467/ ASME SA467 |
| Standard | ASTM, DIN, BS |
| Length in MM | 3 - 200 |
| Nut & Bolt Sizes in Inch | M3 - M56 3/6 - 2 |
| Screws Size | M1.6 - M12 |
| Washers Size in Inch | M3 - M56 3/6 - 2 |
Grades | Monel 400 Fasteners Monel K500 Fasteners |
Monel 400 N04400 Alloy U-bolts U-shaped Screws
Monel 400 Monel K500 Stud Bolt And Nut
Monel 400 ASTM NO4400 2.4360 ALLOY Hex Nut
Monel K500 Bolts Nuts Fasteners
monel 400 (UNS N04400) Ni 66.5 Cu 31.5 hex bolt
Monel Alloy K500 Heavy Hex Bolt
Monel heavy hex bolt bolts 400 fasteners
Monel 400 K500 Alloy U-bolts
Monel 500 Nylon Lock Nuts
| Element | Monel 400 | Monel K500 |
| Nickel | 63 Minimum | 63 Minimum |
| Carbon | 0.3 Maximum | 0.25 Maximum |
| Manganese | 2 Maximum | 1.5 Maximum |
| Sulfur | 0.02 Maximum | 0.010 Maximum |
| Silicon | 0.5 Maximum | 0.5 Maximum |
| Copper | 28 To 34 | 27 To 33 |
| Aluminium | 0.50 Maximum | 2.3 To 3.15 |
| Titanium | - | 0.35 To 0.85 |
| Iron | 1 To 2.5 | 0.5 To 2 |
| Element | Monel 400 | Monel K500 |
| Density | 8.8 g/cm3 | 8.44 g/cm3 |
| Melting Point | 1350 °C | 1350 °C |
| Tensile Strength | Psi – 80000, MPa – 550 | Psi – 161000, MPa – 1100 |
| Yield Strength | Psi – 35000, MPa – 240 | Psi – 115000, MPa – 790 |
| Elongation | 40 | 20 |
| Standard | Monel 400 | Monel K500 |
| UNS | N04400 | N05500 |
| EN | NiCu30Fe | - |
| WERKSTOFF NR. | 2.4360 | 2.4375 |
| JIS | NW 4400 | - |
| GOST | МНЖМц 28-2, 5-1, 5 | - |
| BS | NA 13 | - |
| AFNOR | NU-30M | - |

| Nominal Size | F | G | H | ||||||
| Width Across Flats | Width Across Corners | Thickness | |||||||
| Maximum | Minimum | Maximum | Minimum | Basic | Maximum | Minimum | |||
| 1/4 | .2500 | 7/16 | .438 | .428 | .505 | .488 | 7/32 | .226 | .212 |
| 3/8 | .3750 | 9/16 | .562 | .551 | .650 | .628 | 21/64 | .337 | .479 |
| 5/16 | .3125 | 1/2 | .500 | .489 | .577 | .557 | 17/64 | .273 | .258 |
| 7/16 | .4375 | 11/16 | .688 | .675 | .794 | .768 | 3/8 | .385 | .365 |
| 9/16 | .5625 | 7/8 | .875 | .861 | 1.010 | .982 | 31/64 | .496 | .473 |
| 1/2 | .5000 | 3/4 | .750 | .736 | .866 | .840 | 7/16 | .448 | .427 |
| 5/8 | .6250 | 15/16 | .938 | .922 | 1.083 | 1.051 | 35/64 | .559 | .535 |
| 7/8 | .8750 | 1-5/16 | 1.312 | 1.269 | 1.516 | 1.447 | 3/4 | .776 | .724 |
| 3/4 | .7500 | 1-1/8 | 1.125 | 1.088 | 1.299 | 1.240 | 41/64 | .665 | .617 |
| 1 | 1.0000 | 1-1/2 | 1.500 | 1.450 | 1.732 | 1.653 | 55/64 | .887 | .831 |
| 1-3/8 | 1.3750 | 2-1/16 | 2.062 | 1.994 | 2.382 | 2.273 | 1-11/64 | 1.206 | 1.138 |
| 1-1/8 | 1.1250 | 1-11/16 | 1.688 | 1.631 | 1.949 | 1.859 | 31/32 | .999 | .939 |
| 1-1/2 | 1.500 | 2-1/4 | 2.250 | 2.175 | 2.598 | 2.480 | 1-9/32 | 1.ASTM A194 GR. 8 | 1.245 |
| 1-3/4 | 1.7500 | 2-5/8 | 2.625 | 2.538 | 3.031 | 2.893 | 1-1/2 | 1.540 | 1.460 |
| 1-5/8 | 1.6250 | 2-7/16 | 2.438 | 2.356 | 2.815 | 2.686 | 1-25/64 | 1.429 | 1.353 |
| 2 | 2.0000 | 3 | 3.000 | 2.900 | 3.464 | 3.306 | 1-23/32 | 1.763 | 1.675 |
| 2-1/2 | 2.5000 | 3-3/4 | 3.750 | 3.625 | 4.330 | 4.133 | 2-5/32 | 2.209 | 2.105 |
| 2-1/4 | 2.2500 | 3-3/8 | 3.375 | 3.263 | 3.897 | 3.719 | 1-15/16 | 1.986 | 1.890 |
| 2-3/4 | 2.7500 | 4-1/8 | 4.125 | 3.988 | 4.763 | 4.546 | 2-3/8 | 2.431 | 2.319 |
| Nominal Size | Body Diameter | Head Thickness | ASTM A193 | ASTM A193 | ||||
|---|---|---|---|---|---|---|---|---|
| D (Maximum) | D (Minimum) | H (Maximum) | H (Minimum) | F (Maximum) | F (Minimum) | C (Maximum) | C (Minimum) | |
| m12 | 12 | 11.73 | 7.76 | 4.24 | 19 | 17.73 | 20.78 | 20.03 |
| m10 | 10 | 9.78 | 6.63 | 6.17 | 17 | 15.73 | 18.48 | 17.77 |
| m16 | 16 | 15.73 | 10.32 | 9.68 | 24 | 23.67 | 27.71 | 26.75 |
| m14 | 14 | 13.73 | 9.09 | 8.51 | 22 | 20.67 | 24.25 | 23.35 |
| m20 | 20 | 19.67 | 12.88 | 12.12 | 30 | 29.16 | 34.64 | 32.95 |
| m30 | 30 | 29.67 | 19.48 | 17.92 | 46 | 45 | 53.12 | 50.85 |
| m24 | 24 | 23.67 | 15.44 | 14.56 | 36 | 35 | 41.57 | 39.55 |
| m36 | 36 | 35.61 | 23.38 | 21.63 | 55 | 53.80 | 63.51 | 60.79 |
| m48 | 48 | 47.38 | 31.07 | 28.93 | 75 | 72.60 | 86.60 | 82.76 |
| m42 | 42 | 41.38 | 26.97 | 25.03 | 65 | 62.90 | 75.06 | 71.71 |
| m56 | 56 | 55.26 | 36.2 | 33.80 | 85 | 82.20 | 98.15 | 93.71 |
| m72 | 72 | 71.26 | 46.45 | 43.55 | 105 | 101.40 | 121.24 | 115.60 |
| m64 | 64 | 63.26 | 41.32 | 38.68 | 95 | 91.80 | 109.70 | 104.65 |
| m80 | 80 | 79.26 | 51.58 | 48.42 | 115 | 111 | 132.72 | 126.54 |
| m100 | 90 | 99.13 | 63.9 | 60.10 | 145 | 140 | 167.43 | 159.60 |
| m90 | 90 | 89.13 | 57.74 | 54.26 | 130 | 125.50 | 150.11 | 143.07 |