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ISO 4162 Flange Bolts Manufacturer

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ISO 4162 Flange Bolts

DIN 6921 ISO 4162 Hex Flange Bolt manufacturer in Mumbai, India

Largest range and quick delivery of ISO 4162 class 8.8 Flange Head Bolt, check ISO 4162 Standard Specification and Dimensions

Detailed Information

Prashaant Steel & Alloys is a leading producer of Mushroom ISO 4162 Flange Bolts and a high-calibre retailer. Thanks to their excellent resistivity properties, the Mushroom ISO 4162 Flange Bolts that we manufacture are extremely popular in the industry. We are considered to have the excellent quality of Mushroom ISO 4162 Flange Bolts at Prashaant Steel & Alloys, which is why we use the highest quality of the raw materials used in the production processes. The Mushroom ISO 4162 Flange Bolts provide outstanding resistance to corrosion and oxidation, which opens its doors to a wide range of applications. 

DIN 6921 ISO 4162 Hex Flange Bolt are named by the ridge or skirt around the bolt head. A flange bolt is designed to provide the holding power as if a washer was installed, although in some applications they can be employed along with regular bolts paired with washers. It acts as a distributor of the entire clamping load. With their multi-feature function it helps to make jobs easier and faster. ISO 4162 Flange Bolts are regular hex head bolts with built-in washer and externally threaded body. It comes with plain or serrated flange configuration. … Hexagon flange bolts are commonly useful in automotive industry, especially in truck and heavy vehicular frames. ISO 4162 class 8.8 Flange Head Bolt has been developed to eliminate the deficiencies that have been found with the use of washers.  There are several reasons as to why flanged nuts and bolts are preferred over standard hexagon fasteners used with washers. ISO 4162 DIN 6921 12 Point Bolt Head are used for a little higher clamp load. It would be seen in the oil and gas industry because of the recessing head of the bolt.

ISO 4162 Flange Bolts Specifications

ISO 4162 DIN 6921 Flange Bolt Sizes

  • Cold Forming process: M2-M24
  • Hot Forging process: M24-M100, 1-1/2” Dia, up to 1100mm lg
  • CNC Machining for M100 / 4” Dia, up to 1500mm lg

ISO 4162 class 8.8 Bolts Size Metric

  • Dia: M10 – M110
  • Length: 12 – 1200MM

ISO 4162 Flange Bolt Size Inch

  • Dia: 1/2″ – 4.0″
  • Length: 1/2″ – 52″

Standard

Manufacturer of ISO 4162 Flange Bolts as per IS, ANSI, ASTM, DIN, ISO, JIS, GB, ASME, BS, UNI, CSN, EU, IFI, PN, and all International Standards

  • ANSI B 18.2.4 2M
  • ANSI B 28.2.4 1M
  • ANSI – American National Standards Institute
  • GB/T5783, GB/T5782, GB5783
  • American ASME
  • Indian IS
  • International ISO
  • American SAE
  • German DIN
  • Spanish CSN
  • British BS
  • Italian UNI
  • Polish PN
  • European EU

ISO 4162 Flange Bolts Length

3 mm to 200 mm

DIN 6921 ISO 4162 Flange Bolt US Threads

METRIC, BSW, BSF, Unified national coarse (UNC), Unified national fine (UNF), Unified national extra fine (UNEF), UNJC and UNJF threads, UNK threads, UNR threads, Constant-pitch threads

ISO 4162 Flange Bolts UTS – Unified Thread Standard

UNC, UNF, NPT, UNS, UNEF, NPTF

ISO 4162 Bolts Head drive

Phillips/Slot, Phillips, Slotted, Six-Lobe, etc

Material Origin

ISO 4162 Flange Bolts are Western European. Eastern origin possible on request.

MOQ

5 pieces

Ask for Test Certificates from ISO 4162 Flange Bolts manufacturers

  • Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1,
  • ISO 4162 class 8.8 Bolts Tensile testing to ISO 898-1
  • Hardness testing to ISO 6508-1
  • Suitability for preloading to EN 14399-2
  • Tri-Roll Thread Comparators
  • IFI 536 ISO 4162 Bolts Charpy Impact testing in accordance with ISO 148-1
  • Suitability test for calibrated preload to EN 14399-10
  • Nut proof load testing to ISO 898-2
  • Calibrated gauges and tools

ISO 4162 DIN 6921 Flange Bolt Tensile Strength

Grade

Material

Tensile Strength

Core Hardness

Class of Thread

ISO 4162 Class 8.8 Flange Bolt

10B21/AISI 1035

Min 800 MPa

HRC 22~32

M5 through M16, 6g

ISO 4162 Class 10.9 Flange Bolt

Alloy Steel AISI 4135

Min 1040 MPa

HRC 32~39

M5 through M16, 6g

ISO 4162 Class 12.9 Flange Bolt

Alloy Steel AISI 4135

Min 1220 MPa

HRC 39~44

M5 through M16, 6g

ISO 4162 Class 8.8 Flange Bolt Torque Calculator

Applied Torque, T= (k∙f∙d)/12 in FPS Unit

Where:

  • T= Torque in ft-lb
  • k= Dimensionless nut factor or tightening factor
  • f= axial force in pounds
  • d= Nominal bolt dia. in inches

For metric: ===> Torque Applied, T = (k.d.f)/1000

  • T = Torque in N-m
  • f = Bolt load in N
  • d = Bolt diameter in mm
  • k=Dimensionless nut factor or tightening factor

Class 150 ISO 4162 DIN 6921 Flange Bolt Torque

Bolt Lubricant Molykote 1000 (µ = 0.11)

Size (Inch)

Size (mm)

No. of Bolt

Bolt Diameter

Thread Type

Bolt Stress

lb/in2

Torque

lbf.ft.

Torque

Nm

1/2

15

4

½”

UNC

25,000

22

30

3/4

20

4

½”

UNC

30,000

26

36

1

35

4

½”

UNC

33,000

29

39

1 ½

40

4

½”

UNC

50,000

44

60

2

50

4

5/8”

UNC

50,000

86

117

3

80

4

5/8”

UNC

50,000

86

117

4

100

8

5/8”

UNC

40,000

69

93

6

150

8

¾”

UNC

45,000

137

185

8

200

8

¾”

UNC

45,000

137

185

10

250

12

7/8”

UNC

40,000

194

263

12

300

12

7/8”

UNC

40,000

194

263

14

350

12

1”

UN8

41,000

296

401

16

400

16

1”

UN8

40,000

289

392

18

450

16

1 1/8”

UN8

40,000

421

571

20

500

20

1 1/8”

UN8

40,000

421

571

24

600

20

1 ¼”

UN8

40,000

588

797

  • Flange Materials : ASTM A105, ASTM A182 grades F50 and F51, ASTM A350 grades LF2 and LF3, ASTM A694 grade F52
  • Flange Bolt Material : ASTM A193 grades B7/ B7M, A320 grades L7, L7M and L43.
  • Gasket Type : Graphite Tanged Gasket

ISO 4162 Class 8.8 Pipe Flange Bolt Torque Sequence

Number of Bolt / Stud

Flange Bolt Tightening Sequence

4 bolt

1, 3, 2, 4

8 bolt

1, 5, 3, 7, 2, 6, 4, 8

12 bolt

1, 7, 4, 10, 2, 8, 5, 11, 3, 9, 6, 12

16 bolt

1, 9, 5, 13, 3, 11, 7, 15, 2, 10, 6, 14, 4, 12, 8, 16

20 bolt

1, 11, 6, 16, 3, 13, 8, 18, 5, 15, 10, 20, 2, 12, 17, 4, 14, 9, 19

24 bolt

1, 13, 7, 19, 4, 16, 10, 22, 2, 14, 8, 20, 5, 17, 11, 23, 6, 18, 12, 24, 3, 15, 9, 21

28 bolt

1, 15, 8, 22, 4, 18, 11, 25, 6, 20, 13, 27, 2, 16, 9, 23, 5, 19, 12, 26, 3, 17, 10, 24, 7, 21, 14, 28

32 bolt

1, 17, 9, 25, 5, 21, 13, 29, 3, 19, 11, 27, 7, 23, 15, 31, 2, 18, 10, 26, 6, 22, 14, 30, 8, 24, 16, 32, 4, 20, 12, 28

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