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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.

Unthreaded standoffs are also available for spacing multi-panel assemblies.
Thru-Hole Unthreaded Standoffs - Types SO, SOA, SOS
Thru-Hole Unthreaded Standoffs - Types SO, SOA, SOS, SO4
Unit of Measure
Items Thru-Hole Unthreaded Standoffs - Types SO, SOA, SOS
SO-43.1-3ZI
Thru-Hole Unthreaded Standoffs - Types SO, SOA SOS - Metric
Thru-Hole Unthreaded Standoffs - Types SO, SOA, SOS
SO-43.1-4ZI
Thru-Hole Unthreaded Standoffs - Types SO, SOA SOS - Metric
Thru-Hole Unthreaded Standoffs - Types SO, SOA, SOS
SO-43.1-6ZI
Thru-Hole Unthreaded Standoffs - Types SO, SOA SOS - Metric
Thru-Hole Unthreaded Standoffs - Types SO, SOA, SOS
SO-43.1-8ZI
Thru-Hole Unthreaded Standoffs - Types SO, SOA SOS - Metric
Thru-Hole Unthreaded Standoffs - Types SO, SOA, SOS
SO-43.1-10ZI
Thru-Hole Unthreaded Standoffs - Types SO, SOA SOS - Metric
Description N/A 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.

Unthreaded standoffs are also available for spacing multi-panel assemblies.
Thru-Hole Code N/A 43.1
Length Code N/A 3 N/A 4 N/A 6 N/A 8 N/A 10
Material Code N/A
Min. Sheet Thickness N/A 1.0 mm
Hole Size in Sheet + 0.08 N/A 4.22 mm
B - Thru-hole Diameter + 0.1 - 0.08 N/A 3.1 mm a1350.jpg
C - 0.13 N/A 4.2 mm
H Nom. N/A 4.8 mm
L - Length +0.05 –0.13 N/A 3 mm N/A 4 mm N/A 6 mm N/A 8 mm N/A 10 mm
Min. Dist. Hole C/L to Edge N/A 6.00 mm
For Use in Sheet Hardness1 N/A HRB 80 / HB 150 or less
Fastener Material N/A Heat-Treated Carbon Steel
Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
CAD Supplier N/A PennEngineering® (PEM®)
  • 1 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.