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  • Thru-Hole Threaded Standoffs - Types SO, SOA, SOS
  • Thru-hole Threaded Standoffs - Types SO, SOA, SOS 2
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.
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Thread Size x Pitch

  • M3.5 x 0.6
  • M3 x 0.5
  • M4 x 0.7
  • M5 x 0.8

L - Length +0.05 –0.13 (mm)

Fastener Material

  • 300 Series Stainless Steel
  • Aluminum
  • Heat-Treated Carbon Steel

Standard Finish

  • Passivated and/or tested per ASTM A380
  • Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

Part #

Thread Size x Pitch

Hole Size in Sheet + 0.08

C - 0.13

H Nom.

L - Length +0.05 –0.13

Fastener Material

Standard Finish

CAD

SO-M3-3ZI N/A M3 x 0.5 N/A 4.22 mm N/A 4.2 mm N/A 4.8 mm N/A 3 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3-4ZI N/A M3 x 0.5 N/A 4.22 mm N/A 4.2 mm N/A 4.8 mm N/A 4 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3-6ZI N/A M3 x 0.5 N/A 4.22 mm N/A 4.2 mm N/A 4.8 mm N/A 6 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3-8ZI N/A M3 x 0.5 N/A 4.22 mm N/A 4.2 mm N/A 4.8 mm N/A 8 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3-10ZI N/A M3 x 0.5 N/A 4.22 mm N/A 4.2 mm N/A 4.8 mm N/A 10 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3-12ZI N/A M3 x 0.5 N/A 4.22 mm N/A 4.2 mm N/A 4.8 mm N/A 12 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3-14ZI N/A M3 x 0.5 N/A 4.22 mm N/A 4.2 mm N/A 4.8 mm N/A 14 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3-16ZI N/A M3 x 0.5 N/A 4.22 mm N/A 4.2 mm N/A 4.8 mm N/A 16 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3-18ZI N/A M3 x 0.5 N/A 4.22 mm N/A 4.2 mm N/A 4.8 mm N/A 18 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-3.5M3-3ZI N/A M3 x 0.5 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 3 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-3.5M3-4ZI N/A M3 x 0.5 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 4 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-3.5M3-6ZI N/A M3 x 0.5 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 6 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-3.5M3-8ZI N/A M3 x 0.5 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 8 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-3.5M3-10ZI N/A M3 x 0.5 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 10 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-3.5M3-12ZI N/A M3 x 0.5 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 12 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-3.5M3-14ZI N/A M3 x 0.5 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 14 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-3.5M3-16ZI N/A M3 x 0.5 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 16 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-3.5M3-18ZI N/A M3 x 0.5 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 18 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3.5-3ZI N/A M3.5 x 0.6 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 3 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3.5-4ZI N/A M3.5 x 0.6 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 4 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3.5-6ZI N/A M3.5 x 0.6 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 6 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3.5-8ZI N/A M3.5 x 0.6 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 8 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3.5-10ZI N/A M3.5 x 0.6 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 10 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3.5-12ZI N/A M3.5 x 0.6 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 12 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
SO-M3.5-14ZI N/A M3.5 x 0.6 N/A 5.41 mm N/A 5.39 mm N/A 6.4 mm N/A 14 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A
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