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1185 1186
Bolts Screw
s W
ashersV Details of dimensions and strength ranks X Right pageR SCM435 (M3～M20) SCM440 (M24)Q 38～43HRC (M3～M20) 32～37HRC (M24)
Screw part : Class 2 JIS B 0205
SOCKET HEAD CAP SCREWS SMALL HEAD CAP SCREWS
S Black Oxide (Fe3O4)
Bolt precision JIS B 1176 Strength rank 12.9 (M3～M20) 10.9 (M24)
ℓPart Number U/Price Slide 1
QuantitySlide 2
QuantityType M－ L
Full Thread
CB 3－5
68
1012141516182022
18
2530
3540
45
50
5560 65
Full Thread
CB 4－5
68
101214151618202225
20
30
35
40
45
50
55
60
65
70 75
Full Thread
CB 5－5 6
8
101214151618202225
22
30
35
40
45
50
55
60
65 70
ℓPart Number U/Price Slide 1
QuantitySlide 2
QuantityType M－ L
22
CB 5－75 80
85
9095
100110
120
130 140
Full Thread
CB 6－6 8
10
121415161820
222530
24
35
40
45
50
55
60
65
70
75
80
85
9095
100
110
120
130
140 150
Full Thread
CB 8－8 10
12
1516182022253035
28
40
45
50
55
60
65
70
75
80
85 90
ℓPart Number U/Price Slide 1
QuantitySlide 2
QuantityType M－ L
28
CB 8－95 100110
120
130
140
150
160 200
Full Thread
CB 10－10 1215
20
2530
35 40
32
45
50
55
60
65
70
75
80
85
90
95
100110
120
130
140
150
160
170
180
190
200 210
Full Thread
CB 12－15 20
2530
35
40
45 50
36
55
60
65
70
75
80
85
90
95
100110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280 290
ℓPart Number U/Price Slide 1
QuantitySlide 2
QuantityType M－ L
Full Thread
CB 16－20 25
30
3540
45
50
55 60
44
65
70
75
80
85
90
95
100110
120
130
140
150
160
170
180
190
200
210
220
230
240
250260
270
280
290
300
310 320
Full Thread
CB 20－40 45
50
55
60
65
70 75
52
80
85
90
95
100110
120
130
140
150
160
170
180
190
200
210
220
230
240 250
Full Thread
CB 24－50 60
70 80
60
90
100
110
120
130
140 150
V CBHS is made by grinding down the head of CB, part of the stamped characters on the head surface may sometimes remain visible.
R SCM435Q 38～43HRC
Screw part : Class 2 JIS B 0205
S Black Oxide (Fe3O4)
Bolt precision JIS B 1176 Strength rank 12.9
ℓPart Number U/Price Slide Unit PriceType M－L 1～19 20～100
Full Thread
CBHS 3－5
68
1012
1520
18 25
Full Thread
CBHS 4－5
68
1012
152025
20 3035
ℓPart Number U/Price Slide Unit PriceType M－L 1～19 20～100
Full Thread
CBHS 5－8
1012152025
22
3035
4045
ℓPart Number U/Price Slide Unit PriceType M－ L 1～19 20～100
Full Thread
CBHS 6－10 12
1520 2530
24
3540 4550
ℓPart Number U/Price Slide Unit PriceType M－ L 1～19 20～100
Full Thread
CBHS 8－15 20
2530 35
28
4045
505560
V To be quoted on price & lead time above Max. Q'ty.
Part Number CB 8－40CBHS5－10
V The bolt tightening part S1 of CBHS is smaller than the bolt tightening part S of CB, and also the tightening force is weaker than that of CB. If you wish to obtain an adequate tightening force, consider adding more bolts. It is also recommended that you reduce the size of the counterbore machining. (See figure at right.) If you remove an excessive amount of the C-chamfering, the bolt head may become recessed below the mounting part.
S S1
S＞S1
CBSocket Head Cap Screws
CBHSSmall Head Cap Screws
C chamfered
■Details Size and Strength Rank of Socket Head Cap ScrewM×P (coarse
thread)A
E BCB CBHS
M 3×0.5 5.5 4.5 3 2.5M 4×0.7 7 5.5 4 3M 5×0.8 8.5 7 5 4M 6×1.0 10 8.5 6 5M 8×1.25 13 11 8 6M10×1.5 16 － 10 8M12×1.75 18 － 12 10M16×2.0 24 － 16 14M20×2.5 30 － 20 17M24×3.0 36 － 24 19
※"Strength rank" signifies tensile strength of bolts.(Example) 12.9 (CB3～20)
Indicates that the yield point or the minimum proof strength is 90% of the tensile strength.
Indicates that the minimum tensile strength is 1220N/mm2{124kgf/mm2}
10.9 (CB24)
Indicates that the yield point or the minimum proof strength is 90% of the tensile strength.
Indicates that the minimum tensile strength is 980N/mm2{100kgf/mm2}
[Technical Data]・Screw lower hole table X P.1347
P.1188CBW
CB
Spring Washers
Socket Head Cap Screws
A
LE
M×P
Bℓ
CB
A
LE
M×P
Bℓ
－0.
10
CBHS
QuotationQuotation
QuotationQuotation
Quo
tati
on
Quo
tati
on
Quo
tati
on
Quo
tati
on
Quo
tati
on
Quo
tati
on
Quo
tati
on
Quo
tati
on
QuotationQuotationQuotationQuotation
QuotationQuotationQuotationQuotation
V Non JIS material definition is listed on P.1351 - 1352
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