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Type CFN broaching fasteners are available for thinner sheet, close-to-edge applications. The locking element provides prevailing torque to eliminate loosening of mating threaded hardware.
Unit of Measure

Thread Size

 M3 x 0.5

Thread Code

 M3
Shank Code1 1

A (Shank) ± 0.08

 1.020 mm
Nylon-Insert-Self-Locking-Fasteners---Types-CFN-2.jpg

Min. Sheet Thickness

 1.10 mm

Hole Size in Sheet + 0.08

 3.86 mm

C ± 0.05

 4.11 mm

D ± 0.1

 4.45 mm

E + 0.03 - 0.1

 5.16 mm

T Max.

 2.65 mm
Min. Dist. Hole C/L to Edge2 2.93 mm

Max. Temperature Limit

 250 ºF120 ºC

Fastener Materials - Locking Element

 Black Nylon
For Use in Sheet Hardness3 HRB 60 / HB 107 or Less

Thread Specification

 Internal, ASME B1.13M, 6H

Fastener Material

 Carbon Steel

Standard Finish

 Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

CAD Supplier

 PennEngineering® (PEM®)

Inventory
  • 1 Other shank and screw lengths available.
  • 2 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.
  • 3 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.