B
LIND
S
ELF-CLINCHING
F
ASTENERSSELF-CLINCHING
BLIND FASTENERS
PEM® brand self-clinching blind fasteners provide
permanently mounted blind threads in metal sheets as
thin as .040” / 1 mm.
➣ Provides barrier to protect threads against foreign
matter.
➣ Protects circuits from intrusion of extra long
screws.
PEM blind fasteners employ the proved PEM self-
clinching design and are easily installed in drilled or
punched holes. Shanks of PEM fasteners act as their
own pilots. PEM blind fasteners can be installed with
any standard press applying squeezing forces between
parallel surfaces. Installation is inexpensive and requires
no previous skills or experience.
Part Number Designation
PEM self-clinching blind fasteners are available in thread
sizes from #4-40 through 1/4-20 / M3 through M6 in
B – 832 – 2 ZI
carbon or stainless steel. PEM blind fasteners in each
thread size are available in two different shank lengths
to meet the specifications of design engineers who want
panel holes refilled as much as possible. Type and Thread Shank Finish
Material Code Code
©Copyright 1998 PennEngineering.
B-2 PennEngineering • www.pemnet.comT A E
L
B C
Metric parts are identified by
large chamfer at blind end.
H
Type Hole Size Barrel Shank Min. Depth Min. Dist.
A Min.
Thread FFaasstteenneerr MMaatteerriiaall Thread Shank in Sheet Diameter Diameter E Full L T Hole
(Shank) Sheet
S i z e S t e e l S t Sai tn el ee ls s C o d e C o d e M a x . T h i c k n e s s + - .. 00 00 03 M B ax . M C ax . ± . 0 1 0 T h r Hea d s M a x . ± . 0 1 0 t o C E/ dL ge
.112-40 1 .038 .040
BNS BS 440 .166 .150 .165 .25 .21 .335 .38 .19
(#4-40) 2 .054 .056
.138-32 1 .038 .040
B BS 632 .1875 .169 .187 .28 .23 .335 .38 .22
(#6-32) 2 .054 .056
.164-32 1 .038 .040
B BS 832 .213 .204 .212 .31 .28 .385 .44 .27
(#8-32) 2 .054 .056
.190-32 1 .038 .040
B BS 032 .250 .235 .249 .34 .28 .385 .44 .28
(#10-32) 2 .054 .056
.250-20 1 .054 .056
B BS 0420 .344 .305 .343 .43 .31 .500 .56 .34
(1/4-20) 2 .087 .090
MATERIAL & FINISH SPECIFICATIONS
Threads Fastener Materials Standard Finishes For Use in Sheet Hardness:
Internal, ANSI B1.1, Passivated and/or Zinc Per ASTM 80 or Less 70 or Less
2B / ANSI / ASME Heat-Treated 300 Series Tested Per B 633 SC1 (5µm), on the on the
Type B1.13M, 6H Carbon Steel Stainless Steel ASTM A380 Type III, Colorless Rockwell “B” Scale Rockwell “B” Scale
B • • • •
BS • • • •
PPaarrtt NNuummbbeerr CCooddee FFoorr FFiinniisshheess None ZI
PennEngineering • www.pemnet.com B-3
DEIFINU DEIFINU DEIFINU DEIFINU DEIFINU
All dimensions are in inches.
FFaasstteenneerr MMaatteerriiaall
Type Barrel Shank Min. Depth Min. Dist.
Thread A Min. Hole Size
Fastener Material Thread Shank Diameter Diameter E Full L T Hole
Size x (Shank) Sheet in Sheet
P i t c h S t e e l S t Sai tn el ee ls s C o d e C o d e M a x . T h i c k n e s s + 0 . 0 8 M B ax . M C ax . ± 0 . 2 5 T h r Hea d s M a x . ± 0 . 2 5 t o C E/ dL ge
1 0.97 1
M3 x 0.5 B BS M3NS 4.25 3.84 4.22 6.35 5.3 8.5 9.6 4.8
2 1.38 1.4
1 0.97 1
M4 x 0.7 B BS M4 5.4 5.2 5.38 7.95 7.1 9.8 11.2 6.9
2 1.38 1.4
1 0.97 1
M5 x 0.8 B BS M5 6.4 6.02 6.38 8.75 7.1 9.8 11.2 7.1
2 1.38 1.4
1 1.38 1.4
M6 x 1 B BS M6 8.75 7.8 8.72 11.1 7.8 12.7 14.3 8.6
2 2.21 2.3
CIRTEM CIRTEM CIRTEM CIRTEM CIRTEM
All dimensions are in millimeters.
NS Not Stocked. Available on special order.INSTALLATION
PUNCH
1.
Punch or drill properly sized mounting hole in the sheet. Do
not perform any secondary operations such as deburring.
2.
Place the barrel of the fastener into the anvil hole and place
..001100”” // 00..2255 mmmm
the mounting hole over the shank of the fastener.
xx 4455˚˚ NNoomm..
CChhaammffeerr oonn PPuunncchh
3. L+.06” / 1.5 mm