Basic Thin Type: Dimension and tightening torque tables

hln_basic-thin_img

Standard materials and coatings

Material Coating
Class 4/low-carbon steel (JIS SS400 equivalent) Electrogalvanized (trivalent chromate)
Hot-dip galvanized (HDZ35)
Class 8/medium-carbon steel (JIS S45C) Manganese Phosphate coating
A2/stainless steel (JIS SUS304 or equivalent) Unplated/plain

Please contact us for other materials and/or coatings.

Dimension table (M16–M130)

Updated September 29, 2016

Unit: mm

d Pitch Convex nut Concave nut Width across flats e Overall height Unit weight
P m m1 s g
Nominal size Coarse Fine Basic Tolerance Basic Tolerance Basic Tolerance Approx. Approx. Approx.
M16 2.0 1.5 10 0
-0.8
10 0
-0.8
24 0
-0.8
27.7 16.3 36
M18 2.5 1.5 11 0
-0.9
11 0
-0.9
27 0
-0.8
31.2 17.8 52
M20 2.5 1.5 12 0
-0.9
12 0
-0.9
30 0
-0.8
34.6 19.3 67
M22 2.5 1.5 13 0
-0.9
13 0
-0.9
32 0
-1.0
37.0 21.4 81
M24 3.0 2.0 14 0
-0.9
14 0
-0.9
36 0
-1.0
41.6 22.9 116
M27 3.0 2.0 16 0
-1.4
16 0
-1.4
41 0
-1.0
47.3 25.9 176
M30 3.5 2.0 18 0
-1.4
18 0
-1.4
46 0
-1.0
53.1 29.9 260
M33 3.5 2.0 20 0
-1.5
20 0
-1.5
50 0
-1.0
57.7 33.4 344
M36 4.0 3.0 21 0
-1.5
21 0
-1.5
55 0
-1.2
63.5 33.9 424
M39 4.0 3.0 23 0
-1.5
23 0
-1.5
60 0
-1.2
69.3 37.5 556
M42 4.5 4.0 25 0
-1.5
25 0
-1.5
65 0
-1.2
75.0 41.0 730
M45 4.5 4.0 27 0
-1.5
27 0
-1.5
70 0
-1.2
80.8 45.0 923
M48 5.0 4.0 29 0
-1.5
29 0
-1.5
75 0
-1.2
86.5 49.0 1,169
M52 5.0 4.0 31 0
-1.5
31 0
-1.5
80 0
-1.2
92.4 52.5 1,428
M56 5.5 4.0 34 0
-1.5
34 0
-1.5
85 0
-1.4
98.1 57.5 1,687
M64 6.0 4.0 38 0
-1.5
38 0
-1.5
95 0
-1.4
110 63.5 2,304
M68 40 0
-1.7
40 0
-1.7
100 0
-1.4
115 66.6 3,030
M72 42 0
-1.7
42 0
-1.7
105 0
-1.4
121 68.6 3,060
M76 46 0
-1.7
46 0
-1.7
110 0
-1.4
127 76.6 3,740
M80 48 0
-1.7
48 0
-1.7
115 0
-1.4
133 80.6 4,250
M85 50 0
-1.7
50 0
-1.7
120 0
-1.4
139 82.6 4,610
M90 54 0
-2.0
54 0
-2.0
130 0
-1.6
150 90.6 5,900
M95 57 0
-2.0
57 0
-2.0
135 0
-1.6
156 95.6 6,770
M100 60 0
-2.0
60 0
-2.0
145 0
-1.6
167 100.6 8,430
M105 63 0
-2.0
63 0
-2.0
150 0
-1.6
173 105.6 9,250
M110 65 0
-2.0
65 0
-2.0
155 0
-1.6
179 107.6 11,750
M115 69 0
-2.0
69 0
-2.0
165 0
-1.6
191 115.6 12,280
M120 72 0
-2.0
72 0
-2.0
170 0
-1.6
196 120.6 13,330
M125 76 0
-2.0
76 0
-2.0
180 0
-1.6
208 128.6 16,290
M130 78 0
-2.0
78 0
-2.0
185 0
-1.6
214 130.6 17,150

• Nut shape: JIS B1181 (2004)/ISO 4032
• Screw precision: JIS B0209 (2001)/ISO 261 – 6H
• Please inquire for dimensions, pitch and other specifications not mentioned above.
• Specifications, including size, are subject to change without notice.

Tightening torque table (M16–M130)

Updated September 29, 2016

Unit: mm

Nominal size Pitch Reference tightening torque for convex nut
*70% of the bolt yield point
Recommended tightening torque for convex nut
Class 4 (SS400 or equivalent) Class 8 (S45C) Class 10 (SCM435) A2/stainless steel
(JIS SUS304 or equivalent)
Common to all materials
(min.–max.)
4.8
(320 N/mm²)
8.8
(640 N/mm²)
10.9
(900 N/mm²)
A2-50 A2-70
Trivalent chromate HDZ35 Manganese Phosphate coating Plain
M16 2.0 50 120 105 140 35 70 70–100
M18 2.5 70 165 140 195 46 98 100–150
M20 2.5 100 230 200 280 65 140 120–200
M22 2.5 135 315 270 380 90 190 150–250
M24 3.0 170 400 340 480 110 240 160–300
M27 3.0 250 585 500 700 165 350 250–390
M30 3.5 340 790 680 955 220 480 270–440
M33 3.5 460 1,080 925 1,300 300 650 290–490
M36 4.0 595 1,385 1,185 1,670 390 835 340–590
M39 4.0 765 1,790 1,530 2,160 500 1,080 390–640
M42 4.5 950 2,215 1,900 2,670 620 1,330 440–690
M45 4.5 1,185 2,775 2,370 3,340 780 1,670 490–740
M48 5.0 1,425 3,320 2,850 4,000 940 2,000 540–780
M52 5.0 1,845 4,305 3,685 5,190 1,210 2,590 590–830
M56 5.5 2,290 5,350 4,585 6,445 1,500 3,220 640–880
M64 6.0 3,460 8,070 6,915 9,725 2,270 4,860 690–930
M68 4,190 9,770 8,375 11,780 2,750 5,890 Tighten about 1 turn after tightening manually
M72 5,025 11,720 10,045 14,125 3,295 7,065
M76 5,960 13,905 11,915 16,760 3,910 8,380
M80 7,010 16,345 14,010 19,705 4,600 9,850
M85 8,480 19,785 16,960 23,850 5,565 11,925
M90 10,145 23,670 20,290 28,530 6,655 14,265
M95 12,015 28,035 24,030 33,790 7,885 16,895
M100 14,100 32,905 28,205 39,660 9,255 19,830
M105 16,420 38,310 32,835 46,175 10,775 23,090
M110 18,975 44,270 37,950 53,365 12,450 26,680
M115 21,780 50,825 43,565 61,260 14,295 30,630
M120 24,855 57,995 49,710 69,905 16,310 34,950
M125 28,200 65,810 56,410 79,325 18,510 39,660
M130 31,840 74,295 63,680 89,550 20,895 44,775

• The reference tightening torque for the convex nut is calculated on the basis of a torque coefficient of 0.15.
• The tightening torque for the convex nut with HDZ35 is calculated on the basis of a torque coefficient of 0.35.
• For the tightening torque of the A2/stainless steel convex nut, refer to the strength classification of the bolt used.
• The tightening torque for the convex nut is calculated as 60–80% of the basic type.
• Because the proof load of the convex nut is the same as a general single nut, there is no unique torque value.
• The concave nut can be tightened until contact with the convex nut even if the tightening torque exceeds the recommended maximum value because the torque coefficient varies depending on the surface roughness.
• For HDZ concave nuts, tighten 50% more than the recommended torque value due to the high torque coefficient.