FEO-M3-MD

Miniature Self-Clinching Fasteners – Types U, UL, FE, FEO, FEOX, FEX

FEO-M3-MD

Miniature Self-Clinching Fasteners – Types U, UL, FE, FEO, FEOX, FEX

PEM® brand miniature fasteners fit into a minimal space and provide strong, reusable threads.

Types FE, FEO and UL are self-locking. Types FE and FEO thread locking torque performance is equivalent to applicable NASM25027 specifications. Type UL self-locking nuts meet locking torque requirements specified herein. Some sizes of FE, FEO, and UL can be ordered to NASM45938/7 specifications. Types FEX, FEOX and U have free-running class 2B/6H threads.

PEM miniature fasteners provide immediate visual indication when proper installation has been accomplished.

A strong, knurled collar, which is completely embedded in the sheet, guarantees against rotation of the fastener in the sheet. The torque-out resistance of the knurl greatly exceeds the torque that can be exerted by the selflocking feature.

When this collar is embedded in the sheet, the undercut cavity beneath the collar is filled with displaced sheet material thereby developing pushout resistance.

A dry-film lubricant applied to these fasteners provides the smooth, non-galling prevailing torque performance necessary for reliable locking and for reusability.

Specifications

Thread Code
M3
Thread Size
M3 x 0.5
Thread Size X Pitch
M3 x 0.5
Thread Specification
ANSI B1.21M, Internal, MJ 4H6H 4H5H (M6 thread)
Fastener Material
300 Series Stainless Steel
Standard Finish
Black, Black Dry Film Lubricant, Dry-film Lubricant
For Use in Sheet Hardness
HRB 70 / HB 125 or Less
Product Category
Miniature Self-Clinching Fasteners – Types U, UL, FE, FEO, FEOX, FEX
CAD Supplier
PennEngineering® (PEM®)
CADPartID
103693
Thread Type
Self-Locking
Application Type
Automotive Electronics, Consumer Electronics, Datacom, Telecom
Base Panel Material
Aluminum, Steel
Brand
PEM
Fastener Characteristics
Locking, Miniature, Threaded Internal
Industry
Automotive Electronics, Consumer Electronics, Datacom & Telecom
Installation Equipment/Method
C-Frame Automatic Feed, C-Frame Manual Feed
PEM Product Family
FE, LN
Product Type
Nuts
Technology Type
Self-Clinching
Unit (Metric/Unified)
Metric
A Shank Max
1.020mm, 1.02mm
C – 0.13_mm
4.37mm
E ± 0.13_mm
4.88mm
Hole Size in Sheet + 0.08_mm
4.39mm
Max. Hole in Attached Parts_mm
3.50mm
Min. Dist. Hole C/L to Edge_mm
3.6mm
D Max._mm
3.96mm
Sheet Thickness_mm
0.99 to 1.14mm
T + 0.4_mm
1.90mm

Resources

Installation & Performance Data

fe-fe-fex-feo-feox-fasteners-metric
TYPE THREAD CODE TEST SHEET MATERIAL INSTALLATION (kN) PUSHOUT (N) TORQUE-OUT (N•m)
FEO, FEOX M3 5052-H34 Aluminum 4 391 1.35
FEO, FEOX M3 Cold-Rolled Steel 6.7 622 1.35
ln-fe-feo-nuts-metric
TYPE THREAD CODE TEST SHEET MATERIAL INSTALLATION (kN) PUSHOUT (N) TORQUE-OUT (N•m)
FEO M3 5052-H34 Aluminum 4 391 1.35
FEO M3 Cold-Rolled Steel 6.7 622 1.35

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