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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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Part #

Thread Size

A (Shank) Max.

Sheet Thickness

Hole Size in Sheet + .003 - .000

C Max.

H Nom.

Fastener Material

CAD

Min. Sheet Thickness

F4-256-1 N/A .086-56 (#2-56) N/A .060 in N/A .060 to .091 in N/A .172 in N/A .171 in N/A .188 in N/A Heat treated 400 series stainless steel N/A N/A
F4-440-1 N/A .112-40 (#4-40) N/A .060 in N/A .060 to .091 in N/A .172 in N/A .171 in N/A .188 in N/A Heat treated 400 series stainless steel N/A N/A
F4-632-1 N/A .138-32 (#6-32) N/A .060 in N/A .060 to .091 in N/A .213 in N/A .212 in N/A .250 in N/A Heat treated 400 series stainless steel N/A N/A
F4-832-1 N/A .164-32 (#8-32) N/A .060 in N/A .060 to .091 in N/A .290 in N/A .289 in N/A .312 in N/A Heat treated 400 series stainless steel N/A N/A
F4-032-1 N/A .190-32 (#10-32) N/A .060 in N/A .060 to .091 in N/A .312 in N/A .311 in N/A .343 in N/A Heat treated 400 series stainless steel N/A N/A
F4-256-2 N/A .086-56 (#2-56) N/A .090 in N/A .091 Min. in N/A .172 in N/A .171 in N/A .188 in N/A Heat treated 400 series stainless steel N/A N/A
F4-440-2 N/A .112-40 (#4-40) N/A .090 in N/A .091 Min. in N/A .172 in N/A .171 in N/A .188 in N/A Heat treated 400 series stainless steel N/A N/A
F4-632-2 N/A .138-32 (#6-32) N/A .090 in N/A .091 Min. in N/A .213 in N/A .212 in N/A .250 in N/A Heat treated 400 series stainless steel N/A N/A
F4-832-2 N/A .164-32 (#8-32) N/A .090 in N/A .091 Min. in N/A .290 in N/A .289 in N/A .312 in N/A Heat treated 400 series stainless steel N/A N/A
F4-032-2 N/A .190-32 (#10-32) N/A .090 in N/A .091 Min. in N/A .312 in N/A .311 in N/A .343 in N/A Heat treated 400 series stainless steel N/A N/A
F4-0420-3 N/A .250-20 (1/4-20) N/A .120 in N/A .125 to .156 in N/A .344 in N/A .343 in N/A .375 in N/A Heat treated 400 series stainless steel N/A N/A
F4-0420-4 N/A .250-20 (1/4-20) N/A .151 in N/A .156 to .187 in N/A .344 in N/A .343 in N/A .375 in N/A Heat treated 400 series stainless steel N/A N/A
F4-0420-5 N/A .250-20 (1/4-20) N/A .182 in N/A .187 Min. in N/A .344 in N/A .343 in N/A .375 in N/A Heat treated 400 series stainless steel N/A N/A
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