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
Print Back
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.

Types SO4 standoffs are for installation into stainless steel sheets as thin as 1.02mm.

If you require a standoff which we do not offer in this bulletin, please contact us. We will be happy to work with you to satisfy your special need.
Thru-Hole Threaded Standoffs - Type SO4
Thru-Hole Threaded Standoffs for Installation into Stainless Steel - Type SO4 2
Unit of Measure
1 2 3 4 5 

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

SO4-M5-18 N/A M5 x 0.8 N/A 7.14 mm N/A 7.12 mm N/A 7.9 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-M5-20 N/A M5 x 0.8 N/A 7.14 mm N/A 7.12 mm N/A 7.9 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-M5-22 N/A M5 x 0.8 N/A 7.14 mm N/A 7.12 mm N/A 7.9 mm N/A 22 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-M5-25 N/A M5 x 0.8 N/A 7.14 mm N/A 7.12 mm N/A 7.9 mm N/A 25 mm N/A 400 Series Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SO4-M3-3NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-M3-4NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-M3-6NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-M3-8NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-M3-10NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-M3-12NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-M3-14NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-M3-16NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-M3-18NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-3.5M3-3NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-3.5M3-4NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-3.5M3-6NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-3.5M3-8NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-3.5M3-10NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-3.5M3-12NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-3.5M3-14NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-3.5M3-16NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-3.5M3-18NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-M3.5-3NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-M3.5-4NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
SO4-M3.5-6NC 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 400 Series Stainless Steel N/A Electroless Nickel over Copper over Nickel strike per ASTM B733 N/A CAD Icon (for items table)
Unit of Measure
1 2 3 4 5