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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

.112-40 (#4-40)

Thread Code

440

Shank Code

1

A (Shank) ± .003

.040 in
Nylon-Insert-Self-Locking-Fasteners---Types-CFN-2.jpg

Min. Sheet Thickness

.043 in

Hole Size in Sheet + .003 - .000

.152 in

C ± .002

.162 in

D ± .004

.175 in

E + .001 - .004

.203 in

T Max.

.104 in

Min. Dist. Hole C/L to Edge

.115 in

Max. Temperature Limit

250 ºF120 ºC

Fastener Materials - Locking Element

Blue Nylon
For Use in Sheet Hardness1 HRB 60 / HB 107 or Less

Thread Specification

Internal, ANSI B1.1, 2B

Fastener Material

Carbon Steel

Optional Finish

Zinc plated per ASTM B633, SC1 (5µm), Type II, yellow

CAD Supplier

PennEngineering® (PEM®)
  • 1 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.