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PEMSERT® Self-clinching Flush Fasteners.
Installs flush into stainless steel sheets

Type F4™ fasteners are ideal for flush applications where a stainless steel sheet requires loadbearing threads. The PEM® flush nut can be installed easily by squeezing it into a round hole in metal sheets. When the fastener is properly installed, both the top and the bottom of the sheet remain flat, enhancing the functional and cosmetic qualities of the entire assembly. The hexagonal head along with the proven PEM self-clinching design ensures high axial and torsional strength.
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Unit of Measure
Items
Flush nuts – F

PEMSERT® Self-Clinching Flush Fasteners - Type F4 - Unified
Flush nuts – F

PEMSERT® Self-Clinching Flush Fasteners - Type F4 - Unified
Flush nuts – F

PEMSERT® Self-Clinching Flush Fasteners - Type F4 - Unified
Flush nuts – F

PEMSERT® Self-Clinching Flush Fasteners - Type F4 - Unified
Flush nuts – F

PEMSERT® Self-Clinching Flush Fasteners - Type F4 - Unified
Thread Size N/A .086-56 (#2-56) N/A .112-40 (#4-40) N/A .138-32 (#6-32) N/A .164-32 (#8-32) N/A .190-32 (#10-32)
Thread Code N/A 256 N/A 440 N/A 632 N/A 832 N/A 032
Shank Code1 N/A 1
A (Shank) Max. N/A .060 in
Sheet Thickness N/A .060 to .091 in
Hole Size in Sheet + .003 - .000 N/A .172 in N/A .172 in N/A .213 in N/A .290 in N/A .312 in
C Max.
N/A .171 in a1386_1.jpg N/A .171 in a1386_1.jpg N/A .212 in a1386_1.jpg N/A .289 in a1386_1.jpg N/A .311 in a1386_1.jpg
H Nom. N/A .188 in N/A .188 in N/A .250 in N/A .312 in N/A .343 in
Min. Dist. Hole C/L to Edge2 N/A .23 in N/A .23 in N/A .27 in N/A .28 in N/A .31 in
For Use in Sheet Hardness3 N/A HRB 88 / HB 183 or Less
Thread Specification N/A Internal, ASME B1.1, 2B
Fastener Material N/A Heat treated 400 Series Stainless Steel
Standard Finish N/A Passivated and/or tested per ASTM A380
CAD Supplier N/A PennEngineering® (PEM®)
Min. Sheet Thickness N/A
Inventory N/A {0} N/A {0} N/A {0} N/A {0} N/A {0}
  • 1 Other shank and screw lengths available.
  • 2 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.
  • 3 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.