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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

 N/A .086-56 (#2-56)

Thread Type

 N/A Non-Locking

Thread Code

 N/A 256
Shank Code1 N/A 1

A (Shank) Max.

 N/A .031 in a1387_1.jpg
Sheet Thickness2 N/A .030 to .036 in

Hole Size in Sheet + .003 - .000

 N/A .144 in

C + .000 - .005

 N/A .144 in

D Max.

 N/A .106 in

E ± .005

 N/A .160 in

T + .015 -.000

 N/A .065 in
Min. Dist. Hole C/L to Edge3 N/A .110 in

Max. Hole in Attached Parts

 N/A .106 in
For Use in Sheet Hardness4 N/A HRB 70 / HB 125 or Less

Thread Specification

 N/A Internal, ANSI B1.1, 2B

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®)

Inventory

 N/A {0}
  • 1 Shank code applicable only to Types U and UL fasteners.
  • 2 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
  • 3 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.
  • 4 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.