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These standoffs, which use the proven self-clinching design, install with a squeeze in properly sized round holes - and become permanently mounted in the thin sheet.

PEM® brand thru-hole threaded standoffs are installed with their heads flush with one surface of the mounting sheet.
Unit of Measure

Thread Size

.112-40 (#4-40)

Thread Code

440

Length Code

16

Min. Sheet Thickness

.040 in

Hole Size in Sheet + .003 - .000

.166 in

B - Counter-Bore Dia. ± .005

.125 in
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C + .000 - .005

.165 in

D ± .010

.187 in

H Nom.

.187 in

L - Length +.002 –.005

.500 in

Min. Dist. Hole C/L to Edge

.23 in
For Use in Sheet Hardness1 HRB 80 / HB 150 or less

Thread Specification

Internal, ANSI B1.1, 2B

Fastener Material

Heat-Treated Carbon Steel

Standard Finish

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

CAD Supplier

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