fastening & assembly solutions and technology - Approved Business

FAST OCTOBER 2011
FASTPRODUCTS: Secure fastening
Integration is the safe
route to bolt security
PEM types PF7M and PF7MF
captive panel screws, recently
introduced by PennEngineering
are two distinct mounting styles
for permanent installation into
thin sheets. Both types feature
small, compact, and low-profile
designs ideally suited for limited
access areas and benefit from
patented MAThread anti-cross
threading technology that easily
corrects off-angle installations,
aligns components, and slides
through clogged internal threads.
Their Phillips recess allows for
tool or hand operation.
Type PF7M captive panel
screws integrate a self-clinching
mounting design providing high
pushout resistance. These fasteners
install flush on the back side
of panels as thin as 0.92mm and
are available in two screw lengths
in M3 and M4. They can install
reliably into panels with hardness
of HRB 80 or less or HB 150
or less.
Type PF7MF captive panel
screws feature a flaring design,
which allows them to be installed
permanently into any panel hardness
with minimal force. A closer
fastener centreline to sheet edge
can also be achieved with the
flare-style mounting. They install
flush on the back side of panels as
thin as 0.79mm and are also available
in two screw lengths with
M3 and M4 thread sizes.
As with other PEM captive
screws, both types feature a
shoulder on the retainer portion of
the fastener to help simplify
installation. These new captive
screws join a growing family of
PEM brand hardware allowing
for subsequent access to an
assembly. Captive screws remain
intact without risk of loosening or
falling out and additionally
reduce the number of loose parts
to be inventoried and handled.
Detailed specifications
(Bulletin PF7) and free part drawings
(PEM CAD Library) for
these RoHS-compliant fasteners
can be downloaded at www.pemnet.com.
PENNENGINEERING
+1 215 766 8853
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