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HSS Washer

HSS Washer
HSS Washer
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Product Code : 71
Product Description

Our provided HSS Washer is sturdy in structure, compact in size and anti corrosive in nature. In order to fulfill the need customer�s choices, this washer is available in customer�s sizes, dimensions, finishes and other specifications. Also, it is highly reckoned among clients due to its uniform thickness, high endurance and dimensional accuracy. To ensure excellent strength and defect-free nature, our provided HSS Washer is fabricated using high-grade stainless steel, metal and other hard materials with the aid of latest techniques based molding machines.

Key features:

  • Ideal for distributing the load of a threaded fastener   
  • Comes in round shape
  • Fine finish

 

 

 

HSS Washer

Table 5 : Panchsheel Fasteners High Strength Structural Washers – Dimensions

Bolt Size

M16

M20

(M22)

M24

(M27)

M30

M36

d

Min.

18.00

22.00

24.00

26.00

30.00

33.00

39.00

Max.

18.43

22.52

24.52

26.52

30.52

33.62

39.62

D

Max.

34.00

42.00

44.00

50.00

56.00

60.00

72.00

H


Min.

32.40

40.40

42.40

48.40

54.10

58.10

70.10

Max.

4.60

4.60

4.60

4.60

4.60

4.60

4.60


Min.

3.10

3.10

3.40

3.40

3.40

3.40

3.40

Weight Kg/1000pcs

20.3

31.3

33.2

44.7

54.8

61.4

89.7

Table 6 : Mechanical Properties of H.S.S. Bolts

Thread Size

Stress Area

Property Class 8.8

Property Class 10.9

Ultimate Load (min)

Proof Load (min)

Hardness

Ultimate Load (min)

Proof Load (min)

Hardness

Mm2

Newtons

Newtons

HRC

Newtons

Newtons

HRC

M16

157

125600

91060

22 – 32

163280

130310

32 – 39

M20

245

203350

147000

23 – 34

254800

203350

(M22)

303

251490

181800

315120

251490

M24

353

292990

211800

367120

262990

(M27)

459

380970

275400

477360

380970

M30

561

465630

336600

583440

465630

M36

817

678110

490200

849680

678110

Table 7 : Mechanical Properties of H.S.S. Nuts


Property Class 8

Property Class 10

Thread Size

Proof Load Newtons

Hardness

Proof Load Newtons

Hardness

M16

168900

HRB 89 to HRC 38

195500

HRC 26 to HRC 38

M20

263400

305000

(M22)

325700

377200

M24

379500

439500

(M27)

493400

571500

M30

603100

698400

M36

878300

1017200

Determining the Slip Factor:

The friction grip joint depends for its performance on tightening of bolts to high preload so that the adjoining members are brought into contact and the shear load transmitted by friction between them.

The resistance to Slip (P) is expressed by P=µ x T

Where µ is the experimentally determined Slip factor and T is the initial Bolt preload.

(Ref. Fig. 1) it is desirable that before designing a structural joint, a series of slip factor tests are carried out to determine the actual Slip factor, Creating contact surface conditions similar to be used at site.

Table 9 gives Slip factor values for various contact surfaces.

Table 9 : Slip factor Values for Various contact surfaces

Surface Condition

Average Slip Factor

Untreated tight mill scale

0.45

Grit Blast Surface

0.50 – 0.55

Hot Dip Galvanised

0.21 – 0.35

Hot Dip Galvanised + Wire Brush

0.35

Hot Dip Galvanised + Sand Blast

0.40 – 0.45



PANCHSHEEL FASTENERS PVT. LTD.
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PANCHSHEEL FASTENERS PVT. LTD.
" An ISO 9001 : 2008 Certified Company "
5008, Bazar Sirkiwalan, Jaisav Place, Hauz Qazi, Delhi - 110006, India
Phone : +917259547698
Fax : 91-11-23212344
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