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All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Standoffs for Sheet Metal > Standoffs, Thru-Hole, Threaded and Unthreaded – Types SO, SO4, SOA, SOS > Thru-Hole Threaded Standoffs – Types SO, SOA, SOS > Thru-hole Threaded Standoffs - Types SO, SOA, SOS - Unified > Part # SO-440-4ZI  

Part # SO-440-4ZI, Thru-hole Threaded Standoffs - Types SO, SOA, SOS - Unified

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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.




 Specifications   

Thread Size
.112-40 (#4-40)

Thread Code
440

Length Code
4

Min. Sheet Thickness
.040 in

Hole Size in Sheet + .003 - .000
.166 in

B - Counter-Bore Dia. ± .005

 View
.125 in

C + .000 - .005
.165 in

D ± .010
0 in

H Nom.
.187 in

L - Length +.002 –.005
.125 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.



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PEM Bulletin SO

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