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Flange Nut Manufacturer

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Specification

CHEMICAL & MECHANICAL COMPOSITION

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Flange Nuts Suppliers, Supplies A Full Range Of Stainless Steel Serrated Flange Nuts, Stainless Steel Flanged Wing Nuts At Factory Price In India

Carries A Complete Line Of Exhaust Manifold Flange Nuts, M8 Stainless Steel Flange Nuts, Metric Flange Nuts In Mumbai, India

Detailed Information

Prashaant Steel & Alloys is a major producer and supplier of the Flange Nut. The Flange Nut that we produce for applications in appropriate environments are crafted with absolute accuracy and dimensional quality. We at Prashaant Steel & Alloys are active in the manufacturing ofFlange Nut superlative material, which has high resistivity against corrosion and oxidation under different conditions. Prashaant Steel & Alloys houses a production plant capable of processing Flange Nut bulk orders of different sizes and lengths. We also take custom orders from our customers and manufacture the Flange Nut according to their specifications and requirements. Because of their excellent formability properties, the Flange Nut that we produce are known to have diverse applications in various industrial sectors. We customers from all over the globe at Prashaant Steel & Alloys cater to both small and large industries. Thanks to the consistency of the Flange Nut we have established a reputation in the industry. 

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 others 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.

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. 

Specification of Stainless Steel 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, DIN 916, 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:

  • ISO 4035
  • ISO 14585 C ~DIN 7981C
  • DIN 7973 C ~ISO 1483
  • DIN 7983 C ~ISO 7051
  • ANSI B18.3.1M
  • ASME B18.6.3
  • GB/T5782, GB/T5783, GB5783

DIN, ISO, JIS, GB, IS, BS, ASTM and all International Standards

ANSI – American National Standards Institute

Stainless Steel Flange Nuts Size

  • Cold Forging : M2-M24
  • Hot forging M24-M100, 1-1/2” Dia, up to 1100mm lg
  • Machining and CNC for Customized connecting element: up to M100 / 4” Dia, up to 1500mm lg

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:

  • Ptfe Coated Flange Nuts
  • Hot Dipped Galvanizing Flange Nuts
  • Phosphate Flange Nuts
  • Teflon Flange Nuts
  • Xylon Flange Nuts
  • Zinc Phosphate Flange Nuts
  • Manganese Phosphate
  • Zinc ElectroPlating (Flange Divalent or Trivalent Chrome)
  • ZAC (Zinc Aluminium Flake Coating)
  • Cadmium Flange Nuts

All surface finishes can be supplied, including Zinc, Galvanised, Sherardized, Electroless Nickel, Dacromet, Geomet & PTFE.

Surface treatment

  • Polish
  • Passivation
  • Anodizing
  • Sand blasting
  • Heat-disposing
  • Hot-dip galvanizing
  • Rust preventive oil
  • Black oxide coating
  • Electroplating (color, blue, white, black zinc, Ni, Cr, tin, copper, silver)

High-Strength 12-Point Flange Nuts Weight Chart

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

Dimensions of Stainless Steel Flange Nut

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<

SS Flange Nut Standards

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

Comparison chart of Steel grades for stainless steel Flange Nuts

Grades

European Number

ASTM grade

UNS

British standard

DIN

304

1.4301

ASTM A 193 Gr B8

S 30400

BS 970

X5CrNi1810

304 L

1.4306

ASTM A 320 Gr 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 Gr 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

X10Cr13

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

British Specifications of SS Serrated Flange Nuts

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)

 

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