High Tensile Fasteners
High Strength Stud Bolt, Threaded Rod, Nuts & High Tensile Bolts manufacturer in India



High Tensile Nut Bolt Price List
Alloy Steel High Tensile Fasteners
Dimension |
Description |
Diameter |
Length |
Finish |
Grade |
ISO 4014 / DIN 931 |
High tensile fasteners |
M-12 to M-100 |
20 mm to 500 mm |
Plain / Zinc plated / HDG / Teflon / PTFE / Zinc aluminum flake / Geomet |
8.8 / 10.9 |
ISO 4017 / DIN 933 |
High tensile fasteners |
M-12 to M-100 |
20 mm to 500 mm |
Plain / Zinc plated / HDG / Teflon / PTFE / Zinc aluminum flake / Geomet |
10.9 / 12.9 |
ASTM A 193 / ASTM A 194 |
High tensile fasteners |
1/2″ to 4″ |
3/4″ to 20″ |
Plain / Zinc plated / HDG / Teflon / PTFE / Zinc aluminum flake / Geomet |
ASTM A 193 B-7 / L-7 / B-16 |
BS 1768 |
High tensile fasteners |
1/2″ to 4″ |
20 mm to 500 mm |
Plain / Zinc plated / HDG / Teflon / PTFE / Zinc aluminum flake / Geomet |
ASTM A 193 B-7 / L-7 / B-16 |
CARBON STEEL MILD STEEL FASTENERS
Standard Dimension |
Description |
Size |
Threads |
Finish |
Grade |
ISO 4014 / DIN 931 |
Hex Head bolts |
M-12 to M-100 |
20 mm to 500 mm |
Plain / Zinc plated / HDG |
A2, A4, SS304, 304L, 316, 316L |
ISO 4017 / DIN 933 |
Hex Head Screws |
M-12 to M-100 |
20 mm to 500 mm |
Plain / Zinc plated / HDG |
A2, A4, SS304, 304L, 316, 316L |
ASTM A 193 / ASTM A 194 |
Hex Head bolts |
1/2″ to 4″ |
3/4″ to 20″ |
Plain / Zinc plated / HDG |
B8, B8M, B8T, class 2 |
BS 1768 |
Hex Head Screws |
1/2″ to 4″ |
20 mm to 500 mm |
Plain / Zinc plated / HDG |
B8, B8M, B8T, class 2 |
ASTM A 307 |
Hex Head Screws |
1/2″ to 4″ |
3/4″ to 20″ |
Plain / Zinc plated / HDG |
A, B, C |
HIGH TENSILE FASTENERS / HIGH TENSION FASTENERS
BOLT AND NUT.
HIGH TENSILE ASTM A 193 (GR B7, B7M, B6, B16), ASTM A 320 (GR L7) IS GRADES 8.8, 10.9, 12,9 ETC
BOLTS: M6 TO 125 MM DIA UPTO 5 MTR LG. AND 5/16” TO 5.1/2” DIA UPTO 15 FT. LG
NUTS: M20 TO M125 DIA. ¾” TO 5.1/2” DIA.
Material Grades:
SS 304, 304L, 316, 316L, 316 S31/S33, 317, 410, 321 MONAL, INCOLOY 825, DUPLEX F51 2205 (UNS S31803),SUPER DUPLEX 2507 (UNS S32750) CUPRO NICKLE AND EXOTIC METALS,
GRADES:
ISO DIN 4.6; 6.6; 8.8; 10.9; 12.9; AND TO B.S & AISI.
ISO DIN P4; P6; P8; P10 AND TO B.S & AISI.
AS PER ASTM A 193/ B7/ B6/ B8/ B8M/ B8T/ B16
AS PER ASTM A 320/ L7/ L43/ B8L/ B8M
AS PER ASTM A 194/ 2H/ 4/ 6/ 7/ 8/ 8L/ 8M/ 8T
FOR HIGH/ LOW TEMPERATURE AND PRESSURE AND OTHER WORKING TEMPERATURE IN VARIOUS CATAGORIES
TYPES OF HIGH TENSILE BOLTS:
HEX BOLTS, STUD BOLTS, ANCHOR BOLTS, EYE BOLTS, FLANGE BOLTS,SOCKET HED CAP SCREW, CSK, GRUB SCREW, HEXAGONAL HEAD BOLTS, ALLEN BOLTS, HUB BOLTS, T BOLTS, BENZO BOLTS, TRACK SHOE BOLTS.
TYPES OF HIGH TENSILE NUTS:
HEX NUTS, SQUARE NUTS, CHECK NUTS, COUPLING NUTS, FLANGE NUTS, WHEEL NUTS, NYLOCK NUTS, WING NUTS, ACORN NUTS, FLANGE NUTS, CASTLE SLOTED NUTS, DOOMED NUTS, SELF LOCKING NUTS, TAPPER NUTS, WELD NUTS, PICOT NUTS, CAGE NUTS.
TYPES OF HIGH TENSILE WASHERS:
ROUND, SQUARE, FLAT, ID HEX, STAR LOCK, WAVE WASHER, PICOT WASHER, FRICTION WASHER, PLATE WASHER, TENSION DISC WASHER..
HEX Products
HIGH TENSILE HEXAGON SCREWS/ BOLTS
Standards |
DIN EN ISO 4014 & 4017 DIN 931 / 933 & IS 1364 / IS 1363 |
Grade |
8.8 / 10.9 / 12.9 |
Size |
Dia M 20 to 100 mm |
Finish |
Plain / Zinc plated / Hot dip galvanised |
HIGH TENSILE HEX NUT
Standards |
DIN EN ISO 4032 DIN 934 / 970 & IS 1363 / IS 1364 – 67 |
Grade |
8, 10, 12 |
Size |
Dia M 20 to 100 and Inch 3/4″ to 4″ |
Finish |
Plain / Zinc plated / Hot dip galvanised |
HIGH TENSILE WASHERS
Standards |
IS 2015 / 3064 DIN EN ISO 3063 DIN 125 / ISO 7090 |
Grade |
Carbon steel, Alloy steel and spring steel |
Size |
Dia M 20 to 100 and Inch 3/4″ to 4″ |
Finish |
Plain / Zinc plated / Hot dip galvanised |

All dimensions in mm
DIA |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
M18 |
M20 |
M22 |
M24 |
M27 |
M30 |
M33 |
M36 |
M39 |
M42 |
|||
Pitch |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
|||||||||
Grade A upto length |
40 |
50 |
60 |
80 |
100 |
120 |
140 |
150 |
Grade A not applicable to these dia’s |
||||||||||||
Head Across Flat (S) Nom = Max Min Grade A Grade B |
7 |
8 |
10 |
13 |
16 |
18 |
21 |
24 |
27 |
30 |
34 |
36 |
41 |
46 |
50 |
55 |
60 |
65 |
|||
6.78 |
7.78 |
9.78 |
12.73 |
15.73 |
17.73 |
20.67 |
23.67 |
26.67 |
29.67 |
33.38 |
35.38 |
Grade A not applicable to these dia’s |
|||||||||
6.64 |
7.64 |
9.64 |
12.57 |
15.57 |
17.57 |
20.16 |
23.16 |
26.16 |
29.16 |
33 |
35 |
40 |
45 |
49 |
53.8 |
58.8 |
63.1 |
||||
Head Height (K) Nom Tol + or – Grade A Grade B |
2.8 |
3.5 |
4 |
5.3 |
6.4 |
7.5 |
8.8 |
10 |
11.5 |
12.5 |
14 |
15 |
17 |
18.7 |
21 |
22.5 |
25 |
26 |
|||
0.125 |
0.15 |
0.18 |
0.215 |
Grade A not applicable to these dia’s |
|||||||||||||||||
0.2 |
0.24 |
0.29 |
0.35 |
0.42 |
0.5 |
||||||||||||||||
Across corners e Min Grade A Grade B |
7.66 |
8.79 |
11.05 |
14.38 |
17.77 |
20.03 |
23.36 |
26.75 |
30.14 |
33.53 |
37.72 |
39.98 |
Grade A not applicable to these dia’s |
||||||||
7.5 |
8.63 |
10.89 |
14.2 |
17.59 |
19.85 |
22.78 |
26.17 |
29.56 |
32.95 |
37.29 |
39.55 |
45.2 |
50.85 |
55.37 |
60.79 |
66.44 |
71.3 |
||||
Thread Length (b) For lengths < or = 125mm For lengths > 125mm <= 200mm For lengths > 200mm |
14 |
16 |
18 |
22 |
26 |
30 |
34 |
38 |
42 |
46 |
50 |
54 |
60 |
66 |
Not specified as full thread recommended |
||||||
20 |
22 |
24 |
28 |
32 |
36 |
40 |
44 |
48 |
52 |
56 |
60 |
66 |
72 |
78 |
84 |
90 |
96 |
||||
33 |
35 |
37 |
41 |
45 |
49 |
53 |
57 |
61 |
65 |
69 |
73 |
79 |
85 |
91 |
97 |
103 |
109 |
||||
Major Dia at thread (min) |
3.838 |
4.826 |
5.794 |
7.76 |
9.732 |
11.701 |
13.682 |
15.682 |
17.623 |
19.623 |
21.623 |
23.577 |
26.577 |
29.522 |
32.522 |
35.465 |
38.465 |
41.437 |
|||
Major Dia at thread (max) |
3.978 |
4.976 |
5.974 |
7.972 |
9.968 |
11.966 |
13.962 |
15.962 |
17.958 |
19.958 |
21.958 |
23.952 |
26.952 |
29.947 |
32.947 |
35.94 |
38.94 |
41.937 |
HIGH TENSILE HEX BOLTS IN BSF THREADS TO BS 1083-1965
All dimensions in Inches
DIA |
1/4 |
5/16 |
3/8 |
7/16 |
1/2 |
9/16 |
5/8 |
3/4 |
7/8 |
1 |
1 1/8 |
1 1/4 |
1 3/8 |
1 1/2 |
1 3/4 |
2 |
BSW Pitch (TPI) |
20 |
18 |
16 |
14 |
12 |
12 |
11 |
10 |
9 |
8 |
7 |
7 |
6 |
5 |
4.5 |
|
BSF PITCH (TPI) |
26 |
22 |
20 |
18 |
16 |
16 |
14 |
12 |
11 |
10 |
9 |
9 |
8 |
8 |
7 |
7 |
Head Across Flat (S) Min Max |
0.438 |
0.518 |
0.592 |
0.702 |
0.812 |
0.912 |
1.000 |
1.190 |
1.288 |
1.468 |
1.640 |
1.815 |
2.005 |
2.175 |
2.520 |
2.700 |
0.445 |
0.525 |
0.600 |
0.710 |
0.820 |
0.920 |
1.010 |
1.200 |
1.300 |
1.480 |
1.670 |
1.860 |
2.050 |
2.220 |
2.580 |
2.760 |
|
Head height (K) Min Max |
0.166 |
0.208 |
0.250 |
0.292 |
0.333 |
0.365 |
0.407 |
0.480 |
0.563 |
0.636 |
0.710 |
0.790 |
0.880 |
0.960 |
1.110 |
1.270 |
0.176 |
0.218 |
0.260 |
0.302 |
0.343 |
0.375 |
0.417 |
0.500 |
0.583 |
0.666 |
0.750 |
0.830 |
0.920 |
1.000 |
1.170 |
1.330 |
|
Across corners e Max |
0.51 |
0.61 |
0.69 |
0.82 |
0.95 |
1.06 |
1.17 |
1.39 |
1.50 |
1.71 |
1.93 |
2.15 |
2.37 |
2.56 |
2.98 |
3.19 |
Thread Length b Min |
Twice the Dia (2D) |
|||||||||||||||
Major Dia at thread BSW (min) |
0.2427 |
0.3046 |
0.3666 |
0.4285 |
0.4904 |
0.5527 |
0.6147 |
0.7390 |
0.8653 |
0.9897 |
1.1140 |
1.2388 |
1.4879 |
1.7369 |
1.9862 |
|
Major Dia at thread BSW (max) |
0.2488 |
0.3112 |
0.3736 |
0.4360 |
0.4985 |
0.5609 |
0.6233 |
0.7482 |
0.8750 |
1.000 |
1.1250 |
1.250 |
1.500 |
1.750 |
2.000 |
|
Major Dia at thread BSF (min) |
0.2432 |
0.3051 |
0.3671 |
0.4290 |
0.4910 |
0.5533 |
0.6153 |
0.7394 |
0.8658 |
0.9902 |
1.1148 |
1.2395 |
1.3640 |
1.4888 |
1.7380 |
1.9876 |
Major Dia at thread BSF (max) |
0.2489 |
0.3113 |
0.3737 |
0.4361 |
0.4985 |
0.5610 |
0.6234 |
0.7482 |
0.8750 |
1.000 |
1.1250 |
1.250 |
1.375 |
1.500 |
1.750 |
2.000 |
HIGH TENSILE HEX BOLTS UNF THREADS TO BS 1768-1963
All dimensions in Inches
DIA |
1/4 |
5/16 |
3/8 |
7/16 |
1/2 |
9/16 |
5/8 |
3/4 |
7/8 |
1 |
1 1/8 |
1 1/4 |
1 3/8 |
1 1/2 |
1 3/4 |
2 |
UNC Pitch (TPI) |
20 |
18 |
16 |
14 |
13 |
12 |
11 |
10 |
9 |
8 |
7 |
7 |
6 |
6 |
5 |
4.5 |
UNF Pitch (TPI) |
28 |
24 |
24 |
24 |
20 |
20 |
18 |
16 |
14 |
12 |
NOT RECOMMENDED |
|||||
Head Across Flat (S) Min Max |
0.430 |
0.493 |
0.554 |
0.617 |
0.742 |
0.804 |
0.929 |
1.115 |
1.300 |
1.488 |
1.657 |
1.830 |
2.017 |
2.205 |
2.565 |
2.940 |
0.437 |
0.500 |
0.562 |
0.625 |
0.750 |
0.812 |
0.937 |
1.125 |
1.312 |
1.500 |
1.687 |
1.875 |
2.062 |
2.250 |
2.625 |
3.000 |
|
Head Height (K) Min
Max |
0.153 |
0.201 |
0.233 |
0.281 |
0.313 |
0.361 |
0.393 |
0.463 |
0.543 |
0.597 |
0.678 |
0.773 |
0.838 |
0.934 |
1.074 |
1.203 |
0.163 |
0.211 |
0.243 |
0.291 |
0.323 |
0.371 |
0.403 |
0.483 |
0.563 |
0.627 |
0.718 |
0.813 |
0.878 |
0.974 |
1.134 |
1.263 |
|
Across corners e (MAX) |
0.505 |
0.577 |
0.650 |
0.722 |
0.866 |
0.938 |
1.083 |
1.300 |
1.515 |
1.732 |
1.948 |
2.165 |
2.382 |
2.598 |
3.031 |
3.464 |
Thread Length b (Min) |
2D + 1/4” upto bolt length of 6” and 2D + 1/2” for bolt lengths above 6” |
|||||||||||||||
Major Dia at thread ( Class 2A) Min for UNC |
0.2408 |
0.3026 |
0.3643 |
0.4258 |
0.4876 |
0.5495 |
0.6113 |
0.7353 |
0.8592 |
0.9830 |
1.1064 |
1.2314 |
1.3544 |
1.4794 |
1.7268 |
1.9751 |
Major Dia at thread (2A) Min for UNF |
0.2425 |
0.3042 |
0.3667 |
0.4281 |
0.4906 |
0.5524 |
0.6149 |
0.7391 |
0.8631 |
0.9868 |
NOT RECOMMENDED |
|||||
Major Dia at thread Class 2A Max for UNC |
0.2490 |
0.3113 |
0.3737 |
0.4361 |
0.4985 |
0.5609 |
0.6234 |
0.7482 |
0.8731 |
0.9980 |
1.1228 |
1.2478 |
1.3726 |
1.4976 |
1.7473 |
1.9971 |
HIGH TENSILE HEX SCREWS IN MM THREADS TO IS 1364 (PART 2) 2002 & 1SO 4017

All dimensions in mm
DIA |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
M18 |
M20 |
M22 |
M24 |
M27 |
M30 |
M33 |
M36 |
M39 |
M42 |
Pitch |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2 |
2.5 |
2.5 |
2.5 |
3 |
3 |
3.5 |
3.5 |
4 |
4 |
4.5 |
Grade A upto length |
40 |
50 |
60 |
80 |
100 |
120 |
140 |
150 |
Grade A not applicable to these dia’s |
|||||||||
Head Across Flat (S) Max Min(Grade A) Min (Grade B) |
7 |
8 |
10 |
13 |
16 |
18 |
21 |
24 |
27 |
30 |
34 |
36 |
41 |
46 |
50 |
55 |
60 |
65 |
6.78 |
7.78 |
9.78 |
12.73 |
15.73 |
17.73 |
20.67 |
23.67 |
26.67 |
29.67 |
33.38 |
35.38 |
Grade A not applicable to these dia’s |
||||||
6.64 |
7.64 |
9.64 |
12.57 |
15.57 |
17.57 |
20.16 |
23.16 |
26.16 |
29.16 |
33 |
35 |
40 |
45 |
49 |
53.8 |
58.8 |
63.1 |
|
Head Thickness (K) Tol + or – Grade A
Grade B |
2.8 |
3.5 |
4 |
5.3 |
6.4 |
7.5 |
8.8 |
10 |
11.5 |
12.5 |
14 |
15 |
17 |
18.7 |
21 |
22.5 |
25 |
26 |
0.125 |
0.15 |
0.18 |
0.215 |
Grade A not applicable to these dia’s |
||||||||||||||
0.2 |
0.24 |
0.29 |
0.35 |
0.42 |
0.5 |
|||||||||||||
Across corners e Min Grade A
Min Grade B |
7.66 |
8.79 |
11.05 |
14.38 |
17.77 |
20.03 |
23.36 |
26.75 |
30.14 |
33.53 |
37.72 |
39.98 |
Grade A not applicable to these dia’s |
|||||
7.5 |
8.63 |
10.89 |
14.2 |
17.59 |
19.85 |
22.78 |
26.17 |
29.56 |
32.95 |
37.29 |
39.55 |
45.2 |
50.85 |
55.37 |
60.79 |
66.44 |
71.3 |
|
Major Dia at thread (min) |
3.838 |
4.826 |
5.794 |
7.76 |
9.732 |
11.701 |
13.682 |
15.682 |
17.623 |
19.623 |
21.623 |
23.577 |
26.577 |
29.522 |
32.522 |
35.465 |
38.465 |
41.437 |
Major Dia at thread (max) |
3.978 |
4.976 |
5.974 |
7.972 |
9.968 |
11.966 |
13.962 |
15.962 |
17.958 |
19.958 |
21.958 |
23.952 |
26.952 |
29.947 |
32.947 |
35.94 |
38.94 |
41.937 |
HIGH TENSILE HEX NUTS IN MM THREADS TO IS 1364 (PART 3) 2002

All dimensions in mm
DIA |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
M18 |
M20 |
M22 |
M24 |
M27 |
M30 |
M33 |
M36 |
M39 |
M42 |
Pitch |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2 |
2.5 |
2.5 |
2.5 |
3 |
3 |
3.5 |
3.5 |
4 |
4 |
4.5 |
Across Flat (S) Max Min |
7 |
8 |
10 |
13 |
16 |
18 |
21 |
24 |
27 |
30 |
34 |
36 |
41 |
46 |
50 |
55 |
60 |
65 |
6.78 |
7.78 |
9.78 |
12.73 |
15.73 |
17.73 |
20.67 |
23.67 |
26.16 |
29.16 |
33 |
35 |
40 |
45 |
49 |
53.8 |
58.8 |
63.1 |
|
Thickness (M) Max Min |
3.2 |
4.7 |
5.2 |
6.8 |
8.4 |
10.8 |
12.8 |
14.8 |
15.8 |
18 |
19.4 |
21.5 |
23.8 |
25.6 |
28.7 |
31 |
33.4 |
34 |
2.9 |
4.4 |
4.9 |
6.44 |
8.04 |
10.37 |
12.1 |
14.1 |
15.1 |
16.9 |
18.1 |
20.2 |
22.5 |
24.3 |
27.4 |
29.4 |
31.8 |
32.4 |
|
Across corners (E) Min |
7.66 |
8.79 |
11.05 |
14.38 |
17.77 |
20.03 |
23.35 |
26.75 |
29.56 |
32.95 |
37.29 |
39.55 |
45.2 |
50.85 |
55.37 |
60.79 |
66.44 |
71.3 |
Minor Dia at thread (min) |
3.242 |
4.134 |
4.917 |
6.647 |
8.376 |
10.106 |
11.835 |
13.835 |
15.294 |
17.294 |
19.294 |
20.752 |
23.752 |
26.211 |
29.211 |
31.67 |
34.67 |
37.129 |
Minor Dia at thread (max) |
3.422 |
4.334 |
5.153 |
6.912 |
8.676 |
10.441 |
12.210 |
14.210 |
15.744 |
17.774 |
19.774 |
21.252 |
24.252 |
26.771 |
29.771 |
32.27 |
35.27 |
37.799 |
HIGH TENSILE HEX NUTS IN BSW/BSF THREADS TO BS 1083-1965 THREADS TO BS 84
All dimensions in inches
DIA |
1/4 |
5/16 |
3/8 |
7/16 |
1/2 |
9/16 |
5/8 |
3/4 |
7/8 |
1 |
1 1/8 |
1 1/4 |
1 3/8 |
1 1/2 |
1 3/4 |
2 |
BSW Pitch (TPI) |
20 |
18 |
16 |
14 |
12 |
12 |
11 |
10 |
9 |
8 |
7 |
7 |
- |
6 |
5 |
4.5 |
BSF PITCH (TPI) |
26 |
22 |
20 |
18 |
16 |
16 |
14 |
12 |
11 |
10 |
9 |
9 |
8 |
8 |
7 |
7 |
WIDTH Across Flat (S) Min Max |
0.438 |
0.518 |
0.592 |
0.702 |
0.812 |
0.912 |
1.000 |
1.190 |
1.288 |
1.468 |
1.640 |
1.815 |
2.005 |
2.175 |
2.520 |
2.700 |
0.445 |
0.525 |
0.600 |
0.710 |
0.820 |
0.920 |
1.010 |
1.200 |
1.300 |
1.480 |
1.670 |
1.860 |
2.050 |
2.220 |
2.580 |
2.760 |
|
Thickness (M) Min Max |
0.190 |
0.240 |
0.302 |
0.365 |
0.427 |
0.490 |
0.552 |
0.677 |
0.740 |
0.865 |
0.990 |
1.105 |
1.230 |
1.355 |
1.605 |
1.730 |
0.200 |
0.250 |
0.312 |
0.375 |
0.437 |
0.500 |
0.562 |
0.687 |
0.750 |
0.875 |
1.000 |
1.125 |
1.250 |
1.375 |
1.625 |
1.750 |
|
Across corners (Max inches) |
0.51 |
0.61 |
0.69 |
0.82 |
0.95 |
1.06 |
1.17 |
1.39 |
1.50 |
1.71 |
1.93 |
2.15 |
2.37 |
2.56 |
2.98 |
3.19 |
Minor Dia at thread BSW (min) |
0.1860 |
0.2413 |
0.2950 |
0.3461 |
0.3932 |
0.4557 |
0.5086 |
0.6220 |
0.7328 |
0.8400 |
0.9420 |
1.0670 |
- |
1.2866 |
1.4938 |
1.7154 |
Minor Dia at thread BSW (max) |
0.2030 |
0.2594 |
0.3145 |
0.3674 |
0.4169 |
0.4794 |
0.5338 |
0.6490 |
0.7620 |
0.8720 |
0.9776 |
1.1026 |
- |
1.3269 |
1.5408 |
1.7668 |
Minor Dia at thread BSF (min) |
0.2008 |
0.2543 |
0.3110 |
0.3663 |
0.4200 |
0.4825 |
0.5336 |
0.6432 |
0.7586 |
0.8720 |
0.9828 |
1.1078 |
1.2150 |
1.3400 |
1.5670 |
1.8170 |
Minor Dia at thread BSF (max) |
0.2125 |
0.2684 |
0.3280 |
0.3844 |
0.4395 |
0.5020 |
0.5549 |
0.6669 |
0.7838 |
0.8990 |
1.0120 |
1.1370 |
1.2470 |
1.3720 |
1.6026 |
1.8526 |
HIGH TENSILE HEX NUTS IN UNC/UNF THREADS TO BS 1768-1963 THREADS TO BS 1580
All dimensions in inches
DIA |
1/4 |
5/16 |
3/8 |
7/16 |
1/2 |
9/16 |
5/8 |
3/4 |
7/8 |
1 |
1 1/8 |
1 1/4 |
1 3/8 |
1 1/2 |
1 3/4 |
2 |
UNC Pitch (TPI) |
20 |
18 |
16 |
14 |
13 |
12 |
11 |
10 |
9 |
8 |
7 |
7 |
6 |
6 |
5 |
4.5 |
UNF Pitch (TPI) |
28 |
24 |
24 |
24 |
20 |
20 |
18 |
16 |
14 |
12 |
NOT RECOMMENDED |
|||||
Width Across Flat (S) Min Max |
0.430 |
0.493 |
0.554 |
0.617 |
0.742 |
0.804 |
0.929 |
1.115 |
1.300 |
1.488 |
1.657 |
1.830 |
2.017 |
2.205 |
2.565 |
2.940 |
0.437 |
0.500 |
0.562 |
0.625 |
0.750 |
0.812 |
0.937 |
1.125 |
1.312 |
1.500 |
1.687 |
1.875 |
2.062 |
2.250 |
2.625 |
3.000 |
|
Thickness (M) Min Max |
0.214 |
0.261 |
0.323 |
0.370 |
0.432 |
0.479 |
0.542 |
0.631 |
0.740 |
0.844 |
0.949 |
1.037 |
1.147 |
1.251 |
1.470 |
1.684 |
0.224 |
0.271 |
0.333 |
0.380 |
0.442 |
0.489 |
0.552 |
0.651 |
0.760 |
0.874 |
0.989 |
1.087 |
1.197 |
1.311 |
1.530 |
1.754 |
|
Across corners (E) Max |
0.505 |
0.577 |
0.650 |
0.722 |
0.866 |
0.938 |
1.083 |
1.300 |
1.515 |
1.732 |
1.948 |
2.165 |
2.382 |
2.598 |
3.031 |
3.464 |
Minor Dia at thread (min) UNC (2B) |
0.1960 |
0.2520 |
0.3070 |
0.3600 |
0.4170 |
0.4720 |
0.5270 |
0.6420 |
0.7550 |
0.8650 |
0.9700 |
1.0950 |
1.1950 |
1.3200 |
1.5340 |
1.7590 |
Minor Dia at thread (max) UNC (2B) |
0.2070 |
0.2650 |
0.3210 |
0.3760 |
0.4340 |
0.4900 |
0.5460 |
0.6630 |
0.7780 |
0.8900 |
0.9980 |
1.1230 |
1.2250 |
1.3500 |
1.5680 |
1.7950 |
Minor Dia at thread (min) UNF (2B) |
0.2110 |
0.2670 |
0.3300 |
0.3830 |
0.4460 |
0.5020 |
0.5650 |
0.6820 |
0.7980 |
0.9100 |
NOT RECOMMENDED |
HARDENED AND TEMPERED WASHERS TO IS 6649-1985

All dimensions in mm
DIA |
M16 |
M20 |
M22 |
M24 |
M27 |
M30 |
M36 |
HARDNESS FOR PL. WASHER |
35 TO 45 HRC |
||||||
Hardness for Hot Dip Galvd washer |
26 HRC |
||||||
Outer Dia (Max) d2 |
34 |
42 |
44 |
50 |
56 |
60 |
72 |
Inner Dia (Min) d1 |
18 |
22 |
24 |
26 |
30 |
33 |
39 |
Thickness (S) |
3.1 TO 4.6 |
||||||
Tolerance for OD Minus(-) |
1.6 |
1.9 |
|||||
Tolerance for ID Plus(+) |
0.43 |
0.52 |
0.62 |
HARDENED AND TEMPERED WASHERS TO DIN 6916

All dimensions in mm
DIA |
M12 |
M16 |
M20 |
M22 |
M24 |
M27 |
M30 |
M36 |
Weight in Kgs for 100 nos |
0.703 |
1.46 |
1.96 |
2.43 |
3.06 |
5.02 |
6.32 |
11.50 |
Outer Dia (Max) d2 |
24 |
30 |
37 |
39 |
44 |
50 |
56 |
66 |
Inner Dia (Min) d1 |
13 |
17 |
21 |
23 |
25 |
28 |
31 |
37 |
Thickness (S) |
3 |
4 |
4 |
4 |
4 |
5 |
5 |
6 |
Tolerance for OD Minus(-) |
0.52 |
0.62 |
1 |
1.20 |
||||
Tolerance for ID Plus(+) |
0.27 |
0.33 |
0.52 |
0.62 |
||||
Tolerance for thickness + or - |
0.30 |
0.60 |
HIGH STRENGTH FRICTION GRIP HEX BOLTS IN MM THREADS TO IS 3757-1985 GRADES 8.8S & 10.9S


All dimensions in mm
DIA |
M16 |
M20 |
M22 |
M24 |
M27 |
M30 |
M36 |
Pitch |
2 |
2.5 |
2.5 |
3 |
3 |
3.5 |
4 |
Thread Length for Bolt length <= 100 |
31 |
36 |
38 |
41 |
44 |
49 |
56 |
Thread Length for Bolt length > 100 |
38 |
43 |
45 |
48 |
51 |
56 |
63 |
Head Across Flat (B) Min |
26.16 |
33 |
35 |
40 |
45 |
49 |
58.8 |
Head Across Flat (B) Max |
27 |
34 |
36 |
41 |
46 |
50 |
60 |
Head Height (H) Nom Tolerance + or - |
10 |
12.5 |
14 |
15 |
17 |
18.7 |
22.5 |
0.75 |
0.90 |
1.05 |
|||||
Across corners C min |
29.56 |
37.29 |
39.55 |
45.20 |
50.85 |
55.37 |
66.44 |
Major Dia at thread (min) |
15.682 |
19.623 |
21.623 |
23.577 |
26.577 |
29.522 |
35.465 |
Major Dia at thread (max) |
15.962 |
19.958 |
21.958 |
23.952 |
26.952 |
29.947 |
35.94 |
HIGH STRENGTH FRICTION GRIP HEX NUTS IN MM THREADS TO IS 6623-1985 GRADES 8S & 10S
All dimensions in mm
DIA |
M16 |
M20 |
M22 |
M24 |
M27 |
M30 |
M36 |
Pitch |
2 |
2.5 |
2.5 |
3 |
3 |
3.5 |
4 |
Head Across Flat (B) Min |
26.16 |
33 |
35 |
40 |
45 |
49 |
58.8 |
Head Across Flat (B) Max |
27 |
34 |
36 |
41 |
46 |
50 |
60 |
Height (H) Min Max |
16.4 |
19.4 |
22.3 |
22.9 |
26.3 |
29.1 |
35 |
17.1 |
20.7 |
23.6 |
24.2 |
27.6 |
30.7 |
36.6 |
|
Across corners C min |
29.56 |
37.29 |
39.55 |
45.20 |
50.85 |
55.37 |
66.44 |
Minor Dia at thread (min) |
14.235 |
17.694 |
19.694 |
21.202 |
24.252 |
26.761 |
32.270 |
Minor Dia at thread (max) |
14.610 |
18.144 |
20.144 |
21.702 |
24.752 |
27.321 |
32.870 |
PREVAILING TORQUE TYPE NUTS IN MM THREADS WITH NYLON INSERTS (NYLOCK NUTS) TO IS 7002-2005

All dimensions in mm
DIA | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M16 | M20 | M24 | M30 | M36 |
Pitch | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3 | 3.5 | 4 |
Across Flat (S)Tolerance Minus (-) | 5.5 | 7 | 8 | 10 | 13 | 16 | 18 | 24 | 30 | 36 | 46 | 55 |
0.18 | 0.22 | 0.27 | 0.33 | 0.84 | 1 | 1.2 | ||||||
Height (H) MaxMin | 4.5 | 6 | 6.8 | 8 | 9.5 | 11.9 | 14.9 | 19.1 | 22.8 | 27.1 | 32.6 | 38.9 |
4.02 | 5.52 | 6.22 | 7.42 | 8.92 | 11.2 | 14.2 | 17.8 | 20.7 | 25 | 30.1 | 36.4 | |
Across corners e min | 6.01 | 7.66 | 8.79 | 11.05 | 14.38 | 17.77 | 20.03 | 26.75 | 32.95 | 39.55 | 50.85 | 60.79 |
Minor Dia at thread (min) | 2.850 | 3.242 | 4.134 | 4.917 | 6.647 | 8.376 | 10.106 | 13.835 | 17.294 | 20.752 | 26.211 | 31.67 |
Minor Dia at thread (max) | 3.010 | 3.422 | 4.334 | 5.153 | 6.912 | 8.676 | 10.441 | 14.210 | 17.774 | 21.252 | 26.771 | 32.27 |
High Tensile Fasteners Applications
- Ship Building
- Heat Exchangers
- Condensers
- Fossil Fuel Power Plants
- Industrial Boilers
- Marine Applications
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- Oil & Gas Industry
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