Internally-Threaded Fasteners
National Rivet automotive fasteners provide the durability and reliability required for demanding automotive manufacturing and assembly applications.
Blind Clinch Nut
Clinch Nut
Blind Clinch Nut
This style fastener can be installed from one side of the work piece. A pull-up stud engages the thread and exerts a pull causing the shank to expand firmly against the material being fastened.
Product Specs
Diameter
A
B
Work Hole
4 - 40 UNC-2B
.151/.155
.255/.285
.022/.028
.155/.157
6 - 32 UNC-2B
.185/.189
.310/.340
.028/.036
.189/.193
8 - 32 UNC-2B
.217/.221
.342/.372
.028/.036
.221/.226
10 - 24 UNC-2B
.246/.250
.391/.421
.034/.042
.250/.256
10 - 32 UNF-2B
.246/.250
.391/.421
.034/.042
.250/.256
1/4 - 20 UNC-2B
.328/.332
.460/.490
.054/.062
.332/.338
Clinch Nut
This style of fastener is designed for use with standard automatic rivet setting machines. When both sides of the work piece are accessible a clinch nut provides economical thread installation.
Product Specs
Head Diameter
Head Thickness
Approx. No. of Threads
Shank Diameter
Work Hole Diameter
Shank Lengths
H
T
N
D
L
3 - 48
9/32
5/64
4
.155/.160
.171
As Specified
4 - 40
5/16
3/32
4
.155/.160
.171
As Specified
5 - 40
11/32
7/64
4-1/2
.186/.191
.203
As Specified
6 - 32
11/32
7/64
4
.186/.191
.203
As Specified
8 - 32
3/8
1/8
4
.218/.223
.234
As Specified
10 - 24
13/32
1/8
3-1/2
.249/.254
.265
As Specified
10 - 32
13/32
1/8
4
.249/.254
.265
As Specified
1/4 - 20
15/32
3/16
3-1/2
.328/.335
.343
As Specified