Flat Semi-Tubular Rivet

SEMI-TUBULAR RIVET
Flat Semi-Tubular Rivet
■ Shape and symbols of standard dimensions
H
L
r
B
D
A
d
b2
■ Calculation of under-head shank length
*3
Material thickness t
a1
*2
b1
a2
(Eccentricity of head)
L= Shank diameter(d)×Coefficient(0.6)+Material thickness(t)
(Eccentricity of hole)
*1
Shank
diameter d
Swaging
margin K
*1. Shank diameter (d) x 0.6 = swaging margin (K)
*2. Use coefficient (0.5) as a guide for SUSXM7
(with hole diameter/depth between 0.75 d and 0.77 d)
*3. The under-head shank length L should be less than
5 times the shank diameter or in the case of stainless
steel less than double.
2º max
c
When a length exceeding the specification is required,
please ask us.
Under-head shank length L
l
(Tilt of end face)
(Tilt of head)
The length obtained by this calculation shall be used as a guide.
■ Specification table
Unit (mm)
Nominal diameter
Standard
d
1.2
1.6
2
2.5
1.2
1.6
+ 0.02
− 0.05
3
2
2.5
Tolerance
Standard
D
2.2
A
B
r
a1-a2
b1-b2
c
L
Recommended
work hole
diameter
Standard
Tolerance
Standard
Tolerance
Standard
Tolerance
Max
Max
Max
Max
Min
Max
Standard
4
3
4
0
− 0.08
3.7
0.3
4.6
5.4
7.2
0.6
0.9
1.1
1.4
1.1
1.3
1.7
2.1
2.8
1.4
1.8
2.3 *4
2.7 *4
± 0.05
0.8
± 0.04
1.1
± 0.05
± 0.1
0.08
8
5
6
0
− 0.12
10.5
8
0
− 0.15
13.5
3.6 *4
4.5*4
± 0.25
± 0.2
0.1
0.2
2
10
1.25
4.2
± 0.10
5.4
5.6
7.2
0.3
0.3
3
20
2.65
0.4
0.2
3.5
22
3.15
0.4
6
36
5.3
4.5
28
4.2
+ 0.05
0
Tolerance
2.8
± 0.3
0.4
0.15
3
14
2.1
2.1
0.3
0.2
0.1
0.2
2.5
14
1.65
0
− 0.6
± 0.07
± 0.15
0.06
0.1
6
9
0
− 0.5
1.8
± 0.1
3.5
0
− 0.4
0.4
5
0
− 0.10
0
− 0.3
Tolerance
H
3
0.5
10
56
8.5
8
42
6.4
± 0.05
± 0.10
*4. When length L is close to the minimum or maximum, length B shall be 0.8 x d. For details, see the length B list below.
■ Tolerance of length L
Length L
Nominal diameter
17
1.2
Unit (mm)
1.6
2
2.5
3
4
5
6
4 or below
± 0.1
± 0.15
―
Over 4 to 10
± 0.15
± 0.2
± 0.25
Over 10 to 20
± 0.2
± 0.25
± 0.3
Over 20 to 40
―
± 0.3
± 0.4
Over 40
―
―
± 0.5
8
■ Length B list
2.5
Nominal diameter
Length L
Length B
3
3.5
2.0
3
3.5
2.4
4
4.5
5
3.2
5
5.5
6
4.0