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.

PEM® brand thru-hole threaded standoffs are installed with their heads flush with one surface of the mounting sheet.
Thru-Hole Threaded Standoffs - Types SO, SOA, SOS
Thru-hole Threaded Standoffs - Types SO, SOA, SOS 2
Unit of Measure
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Part #

Thread Size

Hole Size in Sheet + .003 - .000

C + .000 - .005

H Nom.

L - Length +.002 –.005

Fastener Material

Standard Finish

CAD

SO-440-4ZI N/A .112-40 (#4-40) N/A .166 in N/A .165 in N/A .187 in N/A .125 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-440-6ZI N/A .112-40 (#4-40) N/A .166 in N/A .165 in N/A .187 in N/A .187 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-440-8ZI N/A .112-40 (#4-40) N/A .166 in N/A .165 in N/A .187 in N/A .250 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-440-10ZI N/A .112-40 (#4-40) N/A .166 in N/A .165 in N/A .187 in N/A .312 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-440-12ZI N/A .112-40 (#4-40) N/A .166 in N/A .165 in N/A .187 in N/A .375 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-440-14ZI N/A .112-40 (#4-40) N/A .166 in N/A .165 in N/A .187 in N/A .437 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-440-16ZI N/A .112-40 (#4-40) N/A .166 in N/A .165 in N/A .187 in N/A .500 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-440-18ZI N/A .112-40 (#4-40) N/A .166 in N/A .165 in N/A .187 in N/A .562 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-440-20ZI N/A .112-40 (#4-40) N/A .166 in N/A .165 in N/A .187 in N/A .625 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-440-22ZI N/A .112-40 (#4-40) N/A .166 in N/A .165 in N/A .187 in N/A .687 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-440-24ZI N/A .112-40 (#4-40) N/A .166 in N/A .165 in N/A .187 in N/A .750 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-6440-4ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .250 in N/A .125 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-6440-6ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .250 in N/A .187 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-6440-8ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .250 in N/A .250 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-6440-10ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .250 in N/A .312 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-6440-12ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .250 in N/A .375 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-6440-14ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .250 in N/A .437 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-6440-16ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .250 in N/A .500 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-6440-18ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .250 in N/A .562 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-6440-20ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .250 in N/A .625 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-6440-22ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .250 in N/A .687 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-6440-24ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .250 in N/A .750 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-632-4ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .250 in N/A .125 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-632-6ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .250 in N/A .187 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
SO-632-8ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .250 in N/A .250 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
Unit of Measure
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