PennEngineering
PennEngineering
Corporate Headquarters – Danboro, PA
5190 Old Easton Rd.
Danboro, PA 18916
Phone: 215-766-8853
Toll-Free Phone: 1-800-237-4736 (U.S. only)
Email: info@pemnet.com
Website: www.pemnet.com
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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 - Type SO4
Thru-Hole Unthreaded Standoffs - Types SO, SOA, SOS, SO4
Unit of Measure
1 2 3 4 5 

Part #

Hole Size in Sheet + 0.08

B - Thru-hole Diameter + 0.1 - 0.08

C - 0.13

H Nom.

L - Length +0.05 –0.13

Fastener Material

Standard Finish

CAD

SO4-43.1-3 N/A 4.22 mm N/A 3.1 mm N/A 4.2 mm N/A 4.8 mm N/A 3 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-43.1-4 N/A 4.22 mm N/A 3.1 mm N/A 4.2 mm N/A 4.8 mm N/A 4 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-43.1-6 N/A 4.22 mm N/A 3.1 mm N/A 4.2 mm N/A 4.8 mm N/A 6 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-43.1-8 N/A 4.22 mm N/A 3.1 mm N/A 4.2 mm N/A 4.8 mm N/A 8 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-43.1-10 N/A 4.22 mm N/A 3.1 mm N/A 4.2 mm N/A 4.8 mm N/A 10 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-43.1-12 N/A 4.22 mm N/A 3.1 mm N/A 4.2 mm N/A 4.8 mm N/A 12 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-43.1-14 N/A 4.22 mm N/A 3.1 mm N/A 4.2 mm N/A 4.8 mm N/A 14 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-43.1-16 N/A 4.22 mm N/A 3.1 mm N/A 4.2 mm N/A 4.8 mm N/A 16 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-43.1-18 N/A 4.22 mm N/A 3.1 mm N/A 4.2 mm N/A 4.8 mm N/A 18 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-43.1-20 N/A 4.22 mm N/A 3.1 mm N/A 4.2 mm N/A 4.8 mm N/A 20 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.1-3 N/A 5.41 mm N/A 3.1 mm N/A 5.39 mm N/A 6.4 mm N/A 3 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.1-4 N/A 5.41 mm N/A 3.1 mm N/A 5.39 mm N/A 6.4 mm N/A 4 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.1-6 N/A 5.41 mm N/A 3.1 mm N/A 5.39 mm N/A 6.4 mm N/A 6 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.1-8 N/A 5.41 mm N/A 3.1 mm N/A 5.39 mm N/A 6.4 mm N/A 8 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.1-10 N/A 5.41 mm N/A 3.1 mm N/A 5.39 mm N/A 6.4 mm N/A 10 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.1-12 N/A 5.41 mm N/A 3.1 mm N/A 5.39 mm N/A 6.4 mm N/A 12 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.1-14 N/A 5.41 mm N/A 3.1 mm N/A 5.39 mm N/A 6.4 mm N/A 14 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.1-16 N/A 5.41 mm N/A 3.1 mm N/A 5.39 mm N/A 6.4 mm N/A 16 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.1-18 N/A 5.41 mm N/A 3.1 mm N/A 5.39 mm N/A 6.4 mm N/A 18 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.1-20 N/A 5.41 mm N/A 3.1 mm N/A 5.39 mm N/A 6.4 mm N/A 20 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.6-3 N/A 5.41 mm N/A 3.6 mm N/A 5.39 mm N/A 6.4 mm N/A 3 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.6-4 N/A 5.41 mm N/A 3.6 mm N/A 5.39 mm N/A 6.4 mm N/A 4 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.6-6 N/A 5.41 mm N/A 3.6 mm N/A 5.39 mm N/A 6.4 mm N/A 6 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.6-8 N/A 5.41 mm N/A 3.6 mm N/A 5.39 mm N/A 6.4 mm N/A 8 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-63.6-10 N/A 5.41 mm N/A 3.6 mm N/A 5.39 mm N/A 6.4 mm N/A 10 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
Unit of Measure
1 2 3 4 5