Stainless Steel Flange Nuts
Stainless Steel Flange Nuts are regular stainless steel nuts with a flange attached below the head. The flanged nuts have higher grip on the material surface. Where welding is necessary, the flanged nuts provide better welding fit as well. There are different shapes such as the Hex Flange Nuts, wing nuts, lock nuts and other which come with a flange below the head. Some nuts have cone shaped ends while others have open ends. The size of the nut ranges from M2 to M60 in the metric size and from ¼ inches to 4 inches in the UNC dimensions.
Stainless Steel Flange Nuts
High-Strength 12-Point Flange Nuts
SS Serrated Flange Nuts
The SS Flange Nut can come in different lengths ranging from 6mm to 500mm as well. There are different manufacturing types and production methods for these nuts with varying material grades. The Grade 8 Flange Nuts are made up of 304 austenitic stainless steel and are high tensile nuts. They can withstand high torque values, high pressure and high temperatures as well. The minimum yield strength of these nuts is 215MPa and the minimum tensile strength is 505MPa with operating temperatures ranging up to 870 degrees Celsius. There are modified or specialized nuts such as the Serrated Flange Nuts which have serrations on the bottom of the flanges. These serrations allow for the nuts to tighten in but make it difficult to be loosened due to vibrations. There are different standards such as DIN934, DIN439 and others to govern the dimensions of the nuts. There are also different head types such as the High-Strength 12-Point Flange Nuts which are used for various specific application types. The applications of these nuts could be seen from domestic, general applications to complicated automobile, instrument, construction and other industrial applications as well
Table of Content
- Specification of Stainless Steel Flange Nuts
- Basic Types Of SS Hex Flange Nuts
- High-Strength 12-Point Flange Nuts Weight Chart
- Dimensions of Stainless Steel Flange Nut
- SS Flange Nut Standards
- Comparison chart of Steel grades for stainless steel Flange Nuts
- British Specifications of SS Serrated Flange Nuts
| DIN standard | DIN 934, DIN 982, DIN 985, DIN 936, DIN 929, DIN 1587, DIN 439, DIN 315 |
|---|---|
| British standards | BS 57 |
| DIN Standard | B.S. DIN 933, DIN 931, DIN 934, DIN 912, DIN 603, DIN 6923, DIN 970, DIN 7981, DIN 7982, DIN916, DIN 913, DIN 7985 |
| UTS – Unified Thread Standard | UNC, UNF, UNEF, UNS, NPT, NPTF |
| Grade | 18-8 Stainless Steel, 4.8, 8.8, A2, A4, A2-70; A4-70; A4-80 Flange Nuts |
| Standard: |
DIN, ISO, JIS, GB, IS, BS, ASTM and all International Standards |
| Stainless Steel Flange Nuts Size |
Stainless Steel Flange Nuts M2, M3, (M3.5), M4, M5, M6, M8, M10, M12, (M14), M16, (M18), M20, (M22), M24, (M27), M30, M33, M36, M42, (M45), M48 to M160 and Custom Sizes |
| Length | 3 mm to 200 mm |
| Stainless Steel Threads: | Metric, Metric Fine, BSW, UNF, UNC, BA, BSF and BSCY (cycle) threads or as required |
| Dimensions | ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded. |
| Tolerance | +/-0.01mm to +/-0.05mm |
| Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe, etc |
| Type | Pan/ Round/ Oval/ countersunk/ Truss head |
| Head | Pan head, flat head, oval head, Flange head, phillips head |
| Finishing: | Zinc (yellow, white, blue, black), black oxide Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Stainless Steel, Mechanically Applied coating and some special one like DACROMET |
| Finish | Per ASTM A380/A380M |
| Production process | Wire DraFlange, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing |
| Surface Coating: |
All surface finishes can be supplied, including Zinc, Galvanised, Sherardized, Electroless Nickel, Dacromet, Geomet & PTFE. |
| Surface treatment |
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| Top Manufacturers | SPAX® Screws, GKW, Unbrako, Kundan, APL, Sundaram Precision, Infasco, EBY Fastener Etc. |
| Stainless Steel Flange Nuts Packing: | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
| Why choose us? |
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| Test Certificate: |
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| Other available material |
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| Uses & application | Railway, Wind tower, Nuclear power, Automotive industry, Construction, Electronic industry |
Stainless Steel Serrated Flange Nut
SS Flange Nuts
Stainless Steel Flanged Wing Nuts
Lock And Metric Flange Nuts
High-Strength 12-Point Flange Nuts
SS Hex Flange Nuts
SS Lock Flange Nuts
SS Metric Flange Nuts
Exhaust Flange Nuts
316 SS Flange Nuts
M8 Stainless Steel Flange Nuts
Stainless Steel Flange Lock Nuts
| Size | Finished Hex | Heavy Hex | Finished Jam | Heavy Hex Jam | Square | Heavy Square |
|---|---|---|---|---|---|---|
| 1/2″ | 3.750 | 6.540 | 2.620 | 4.000 | 5.780 | 7.870 |
| 5/8″ | 7.330 | 11.900 | 4.930 | 6.960 | 10.800 | 14.300 |
| 3/4″ | 11.900 | 19.300 | 7.700 | 11.000 | 15.400 | 23.500 |
| 7/8″ | 19.000 | 29.700 | 12.000 | 16.700 | 24.500 | 36.200 |
| 1″ | 28.300 | 42.500 | 17.600 | 23.500 | 36.300 | 51.500 |
| 1-1/8″ | 40.300 | 59.200 | 24.700 | 32.400 | 52.500 | 72.400 |
| 1-1/4″ | 54.300 | 78.600 | 36.100 | 45.800 | 70.600 | 95.500 |
| 1-3/8″ | 73.000 | 102.000 | 47.900 | 59.300 | 94.500 | 125.000 |
| 1-1/2″ | 94.300 | 131.000 | 60.900 | 74.800 | 122.000 | 161.000 |
| 1-5/8″ | 162.000 | 91.600 | ||||
| 1-3/4″ | 151.000 | 204.000 | 100.000 | 114.000 | ||
| 1-7/8″ | 241.000 | 134.000 | ||||
| 2″ | 224.000 | 299.000 | 140.000 | 165.000 | ||
| 2-1/4″ | 419.000 | 227.000 | ||||
| 2-1/2″ | 564.000 | 332.000 | ||||
| 2-3/4″ | 738.000 | 429.000 | ||||
| 3″ | 950.000 | 545.000 | ||||
| 3-1/4″ | 1194.000 | 651.000 | ||||
| 3-1/2″ | 1526.000 | 851.000 | ||||
| 3-3/4″ | 1812.000 | 1005.000 | ||||
| 4″ | 2180.000 | 1200.000 |
| Nominal Nut Size< | < | A Flange Dia.< |
B Across Flats< |
C Across Corners< |
D Nut Thickness< |
E Minimum Flange Edge Thickness< |
|---|---|---|---|---|---|---|
| M5 x 0.8< | Max. Min.< | 11.81< | 7.77 8.00< |
8.79 9.25< |
4.70 5.00< |
0.99< |
| < | ||||||
| M6 x 1.0< | Max. Min.< | 14.20< | 10.00 9.78< | 11.55 11.05< |
6.00 5.70< |
1.10< |
| < | ||||||
| M8 x 1.00< | Max. Min.< | 17.90< | 13.00 12.73< | 15.01 14.38< |
8.00 7.60< |
1.20< |
| M8 x 1.25< | ||||||
| M10 x 1.25< | Max. Min.< | 21.80< | 15.00 14.73< | 17.32 16.64< |
10.00 9.60< |
1.50< |
| M10 x 1.50< | ||||||
| M12 x 1.25< | Max. Min.< | 26.00< | 18.00 17.73< | 20.78 20.03< |
12.00 11.60< |
1.80< |
| M12 x 1.75< | ||||||
| M14 x 1.25< | Max. Min.< | 29.90< | 21.00 20.67< | 24.25 23.35< |
14.00 13.30< |
2.10< |
| M14 x 1.50< | ||||||
| M14 x 2.00< | ||||||
| M16 x 1.50< | Max. Min.< | 34.50< | 24.00 23.67< | 27.71 26.75< |
16.00 15.30< |
2.40< |
| M16 x 2.00< | ||||||
| M20 x 1.50< | Max. Min.< | 42.80< | 30.00 29.16< | 34.64 32.95< |
20.00 18.90< |
3.00< |
| M20 x 2.50< | ||||||
| M24 x 2.00< | Max. Min.< | 51.73< | 36.00 34.80< | 41.57 39.67< |
24.00 22.86< |
3.60< |
| Standard Dimension | Description | Size | Threads | Finish | Material Grade |
|---|---|---|---|---|---|
| ISO 4032 | Flange Nuts | M-16 to M-100 | MM | Bright | SS 304, SS 316, SS 316L, 316S31 |
| DIN 934 | Flange Nuts | M-16 to M-100 | MM | Bright | SS 304, SS 316, SS 316L, 316S31 |
| ANSI B18.2.2 | Flange Nuts | 5/8″ to 4″ | Unc | Bright | ASTM A-194 8 , 8M, 8T |
| BS 1083 | Flange Nuts | 5/8″ to 4″ | BSW | Bright | ASTM A-194 8 , 8M, 8T |
| Grades | European Number | ASTM grade | UNS | British standard | DIN |
|---|---|---|---|---|---|
| 304 | 1.4301 | ASTM A 193 Gr B8 | S 30400 | BS 970 | X 5CrNi1810 |
| 304 L | 1.4306 | ASTM A 320 Ge B8 | S 30403 | BS 970 | X 2CrNi1911 |
| 316 | 1.4401 | ASTM A 193 Gr B8M | S 31600 | BS 970 | X 5 CrNiMo 17 13 2 |
| 316 L | 1.4404 | ASTM A 320 Ge B8M | S 31603 | BS 970 | X 2 CrNiMo 17 13 2 |
| 310 | 1.4841 | ASTM A 479 | S 31000 | BS 970 | X 12 CrNi 25 21 |
| 310 S | 1.4845 | S 31008 | BS 970 | X 12 CrNi 25 21 | |
| 410 | 1.4006 | S 41000 | BS 970 | X 10Cr13 | |
| 431 | 1.4057 | S 43100 | BS 970 | X 20CrNi172 | |
| 316S31 | 1.4401 | ASTM A 193 Gr B8M | S 31600 | BS 970 | X 5 CrNiMo 17 12 2 |
| BS 1083 Thin Hex Jam Nut | BS 1083 Hex Nut |
| BS 1083 Full Hex Nut | BS 1083 Hex Locking Nut with Nylon Insert (Type T) |
| BS 1083 Hex Locking Nut with Nylon Insert (Type P) |