Closed-End Blind Rivets Countersunk Head Specifications
Closed-End Blind Rivets Countersunk Head Specifications
Dimensions of 120 Deg. Countersunk Head Style Break Mandrel Closed End Blind Rivets (Table 1)
Rivet Series NO.
Nom Rivet Size
D
H
E
R
W
P
F
L
Body Dia
Style 1 Regular Head
Radius
of
Fillet
Mandrel Dia
Mandrel Protrusion
Blind Side Protrusion
Rivet Body Length
Head Dia
Head Height
All Materials
Max
Min
Max
Min
.Max
Max
Min
Max
Max
4
1/8 (.125)
0.128
0.122
0.252
0.221
0.0420
0.025
0.074
1.00
Equal to "L" Rivet Body Length
See Table 2
5
5/32 (.156)
0.159
0.153
0.328
0.296
0.051
0.025
0.092
1.06
6
3/16 (.187)
0.191
0.183
0.394
0.356
0.060
0.025
0.110
1.06
8
1/4 (.250)
0.255
0.246
0.525
0.475
0.080
0.025
0.146
1.06
See Notes
3
4
5
Notes:
All Dimensions are in inches.
For application data, see table 2
Maximum head diameter is called on nominal rivet diameter and nominal head angle extended to sharp corner. Minimum head diameter is absolute
Head Height is given for reference purposes only. Variations in this dimension are controlled by the diameters (H) and (D) and the included angle of the head.
The blind side protrusion (F) equals the max length of rivet body (L) as given in Table 2 for the applicable grip. Minimum blind side clearance may be calculated by subtracting the actual grip (G) (i.e. the total thickness of material to be joined) from the blind side protrusion (F). (Example: To join two plates each .100 in. thick with a 5/32 in. rivet, a No. 54 rivet would be used. Minimum blind side clearance necessary to permit proper rivet setting would be L-G, which is .550 - .200 and equals .350 in.)