F4-440-1

PEMSERT® Self-Clinching Flush Fasteners – Type F4

F4-440-1

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.

Specifications

Thread Code
440
Thread Size
#4-40
Thread Specification
2B, ASME B1.1, Internal
Shank Code
1
Fastener Material
Heat treated 400 Series Stainless Steel
For Use in Sheet Hardness
HRB 88 / HB 183 or Less
Product Category
PEMSERT® Self-Clinching Flush Fasteners – Type F4
CAD Supplier
PennEngineering® (PEM®)
CADPartID
103690
Application Type
Aerospace, Automotive, Automotive Electronics, Commercial Vehicles, Datacom, Electric Vehicle Chargers, Electric Vehicles, Electronics, Industrial, Manufacturing & Sheet Metal Fabrication, Marine, Medical, Renewable Energy, Telecom
Base Panel Material
Stainless Steel
Brand
PEM
Fastener Characteristics
Flush, Threaded Internal
Industry
Automotive, Automotive Electronics, Datacom & Telecom, Defense, Electric Vehicles, Industrial & Commercial, Medical
Installation Equipment/Method
C-Frame Automatic Feed, C-Frame Manual Feed
PEM Product Family
F, SS
Product Type
Nuts
Technology Type
Self-Clinching
Unit (Metric/Unified)
Unified
A Shank Max
0.06in
H Nom._in
0.188in
Hole Size in Sheet + .003 – .000_in
0.172in
Min. Dist. Hole C/L to Edge_in
0.23in
C Max._in
0.171in
Sheet Thickness_in
.060 to .091in

Resources

Installation & Performance Data

f-f4-nuts-metric
TYPE THREAD CODE SHANK CODE AXIAL TENSILE STRENGTH (KN) REC. TIGTHENING TORQUE (N•m) TEST SHEET MATERIAL INSTALLATION (KN) PUSHOUT (N)
F4 440 1 0.68 0.23 300 Series Stainless Steel 32 1200
F4 440 2 0.68 0.23 300 Series Stainless Steel 32 1200
f-f4-nuts-unified
TYPE THREAD CODE SHANK CODE AXIAL TENSILE STRENGTH (lbs.) REC. TIGTHENING TORQUE (in. lbs.) TEST SHEET MATERIAL INSTALLATION (lbs.) PUSHOUT (lbs.)
F4 440 1 165 2.50 300 Series Stainless Steel 7200 270
F4 440 2 165 2.50 300 Series Stainless Steel 7200 270
ss-f4-nuts-metric
TYPE THREAD CODE SHANK CODE AXIAL TENSILE STRENGTH (KN) MAX. SCREW TIGTHENING TORQUE (N•m) TEST SHEET MATERIAL INSTALLATION (KN) PUSHOUT (N)
F4 440 1 0.68 0.23 300 Series Stainless Steel 32 1200
F4 440 2 0.68 0.23 300 Series Stainless Steel 32 1200
ss-f4-nuts-unified
TYPE THREAD CODE SHANK CODE AXIAL TENSILE STRENGTH (lbs.) MAX. SCREW TIGTHENING TORQUE (in. lbs.) TEST SHEET MATERIAL INSTALLATION (lbs.) PUSHOUT (lbs.)
F4 440 1 165 2.50 300 Series Stainless Steel 7200 270
F4 440 2 165 2.50 300 Series Stainless Steel 7200 270

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