HEXAGON & SQUARE BOLTS TO BSS 916/53

64
95

60
90

56
85

52
80

48
75

45
70

42
65

39
60

36
55

33
50

30
46

B.N.
SPA

27
41

24
36

22
34

20
30

18
27

16
24

14
21

12
18

10mm
16

8mm
13

6mm
10

B.N.
SPA

SPANNER SIZE FOR BOLTS NUTS

                                                 Up to 4                     Up to 8                      Above 8
Up to 1/2 Dia                          2 Diameters                2 Diameters               2.1/2 Diameters
Above 1/2 Dia                         1.1/2 Diameters         2 Diameters               2. 1/2 Diameters

STANDARD THREAD LENGTH

1.250
1.416
1.580
1.750

1.430
1.600
1.770
1.980

1.875
2.125
2.375
2.625

1.975
2.225
2.475
2.775

1.500
1.670
1.830
2.000

1.600
1.770
1.930
2.150

3.090
3.490
3.830
4.080

3.150
3.550
3.890
4.180

-
-
-
-

6
6
6
5

4
4
3.5
3.5

2.1/4
2.1/2
2.3/4
3

0.916
1.000
1.083
1.166

0.980
1.060
1.160
1.250

1.175
1.500
1.625
1.750

1.455
1.580
1.725
1.850

1.000
1.080
1.170
1.330

1.060
1.180
1.270
1.430

2.175
2.365
2.250
2.700

2.220
2.410
2.580
2.760

1.550
1.685
1.810
2.060

8
8
7
7

6
5
5
4.5

1.1/2
1.5/8
1.3/4
2

0.500
0.583
0.666
0.750

0.550
0.630
0.720
0.810

0.750
0.875
1.000
1.125

0.810
0.935
1.060
1.205

0.583
0.666
0.750
0.830

0.623
0.706
0.790
0.890

1.270
1.450
1.640
1.815

1.300
1.480
1.670
1.860

0.915
1.040
1.175
1.300

11
10
9
9

9
8
7
7

7/8
1
1.1/8
1.1/4

0.290
0.323
0.375
0.458

0.300
0.333
0.410
0.490

0.437
0.500
0.562
0.687

0.467
0.530
0.602
0.728

0.333
0.375
0.417
0.500

0.363
0.405
0.447
0.530

0.800
0.900
0.985
1.175

0.820
0.920
1.010
1.200

0.530
0.592
0.665
0.790

16
16
14
12

12
12
11
10

1/2
9/16
5/8
3/4

0.180
0.200
0.250
0.265

0.185
0.210
0.260
0.275

0.200
0.250
0.312
0.375

0.220
0.270
0.332
0.395

0.166
0.280
0.250
0.292

0.186
0.228
0.270
0.312

0.435
0.515
0.585
0.695

0.445
0.525
0.600
0.710

0.280
0.342
0.405
0.468

26
22
20
18

20
18
16
14

1/4
5/16
3/8
7/16

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Max.

Max.

B.S.F.

B.S.W.

Thickness of Hex Locknuts

Thickness of Nuts

Thickness of Head

Size A-Cross Flat

DIA of unthreaded Shanks

No. of Thread per inch

DIA of Bolts

  • Country:India
  • telephone:91-22-25131979
STANDARD THREAD LENGTH

Kothari Industries

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