Part # F4-0420-3, PEMSERT® Self-Clinching Flush Fasteners - Type F4

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 loadbearingthreads. The PEM® flush nut can be installed easily by squeezing it into a round holein metal sheets. When the fastener is properly installed, both the top and the bottom of thesheet 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 andtorsional strength.

Unit of Measure

Specifications

Thread Size	N/A .250-20 (1/4-20)
Thread Code	N/A 0420
Shank Code¹	N/A 3
A (Shank) Max.	N/A .120 in
Sheet Thickness	N/A .125 to .156 in
Hole Size in Sheet + .003 - .000	N/A .344 in
C Max.	N/A .343 in
H Nom.	N/A .375 in
Min. Dist. Hole C/L to Edge²	N/A .34 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®)
Inventory	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.

Specifications

Thread Size

Thread Code

A (Shank) Max.

Sheet Thickness

Hole Size in Sheet + .003 - .000

C Max.

H Nom.

Thread Specification

Fastener Material

Standard Finish

CAD Supplier

Inventory