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Online literature contains the most current information available.
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. Ty
Unit of Measure

Thread Size x Pitch

N/A M3 x 0.5

Thread Type

N/A Non-Locking

Thread Code

N/A M3

A (Shank) Max.

N/A 1.53 mm a1387.jpg
Sheet Thickness1 N/A 1.50 to 1.78 mm

Hole Size in Sheet + 0.08

N/A 4.39 mm

C - 0.13

N/A 4.37 mm

D Max.

N/A 3.96 mm

E ± 0.13

N/A 4.88 mm

T + 0.4

N/A 1.90 mm

Min. Dist. Hole C/L to Edge

N/A 3.6 mm

Max. Hole in Attached Parts

N/A 3.50 mm
For Use in Sheet Hardness2 N/A HRB 70 / HB 125 or Less

Thread Specification

N/A Internal, ANSI / ASME B1.13M, 6H

Fastener Material

N/A 300 Series Stainless Steel

Standard Finish

N/A Passivated and/or tested per ASTM A380

CAD Supplier

N/A PennEngineering® (PEM®)
  • 1 In applications between the sheet thicknesses for your thread size, see last paragraph of installation data on page FE-6. Knurled collar may fracture if fastener is used in sheets thicker than the specified range and the screw is tightened beyond maximum tightening torque.
  • 2 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.