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 ensure permanent mounting in metal sheets as thin as 1.60mm.

The fastener head is locked securely in a blind, milled hole and is able to handle substantial loads. The concealed-head feature allows the side of the sheet opposite installation to remain smooth.

Sheet preparation only requires a milled blind hole to the recommended minimum depth. Center-cutting end mills for hole preparation are available from PennEngineering. Installation of the concealed-head studs and standoffs ismore
Concealed-head standoffs - CSOS, CSS
Stainless Steel Standoffs - Types CSS, CSOS 2
Unit of Measure
1 2 3 

Part #

Thread Size x Pitch

Style

Shank

Blind Mounting Hole Diameter + 0.08

L - Length + 0.05 –0.13

A Max.

B Max.

C Max.

Min. Depth Full Thread F

CAD

CSS-M3-4 N/A M3 x 0.5 N/A #1 N/A Short N/A 5.41 mm N/A 4 mm N/A 1.04 mm N/A 4.20 mm N/A 5.39 mm N/A 5 mm N/A CAD Icon (for items table)
CSS-M4-4 N/A M4 x 0.7 N/A #1 N/A Short N/A 7.92 mm N/A 4 mm N/A 1.04 mm N/A 6.23 mm N/A 7.9 mm N/A 6.5 mm N/A CAD Icon (for items table)
CSS-M5-4 N/A M5 x 0.8 N/A #1 N/A Short N/A 8.74 mm N/A 4 mm N/A 1.04 mm N/A 7.37 mm N/A 8.72 mm N/A 9.6 mm N/A CAD Icon (for items table)
CSS-M3-6 N/A M3 x 0.5 N/A #1 N/A Short N/A 5.41 mm N/A 6 mm N/A 1.04 mm N/A 4.20 mm N/A 5.39 mm N/A 5 mm N/A CAD Icon (for items table)
CSS-M4-6 N/A M4 x 0.7 N/A #1 N/A Short N/A 7.92 mm N/A 6 mm N/A 1.04 mm N/A 6.23 mm N/A 7.9 mm N/A 6.5 mm N/A CAD Icon (for items table)
CSS-M5-6 N/A M5 x 0.8 N/A #1 N/A Short N/A 8.74 mm N/A 6 mm N/A 1.04 mm N/A 7.37 mm N/A 8.72 mm N/A 9.6 mm N/A CAD Icon (for items table)
CSS-M3-8 N/A M3 x 0.5 N/A #2 N/A Short N/A 5.41 mm N/A 8 mm N/A 1.04 mm N/A 4.20 mm N/A 5.39 mm N/A 5 mm N/A CAD Icon (for items table)
CSS-M4-8 N/A M4 x 0.7 N/A #2 N/A Short N/A 7.92 mm N/A 8 mm N/A 1.04 mm N/A 6.23 mm N/A 7.9 mm N/A 6.5 mm N/A CAD Icon (for items table)
CSS-M5-8 N/A M5 x 0.8 N/A #1 N/A Short N/A 8.74 mm N/A 8 mm N/A 1.04 mm N/A 7.37 mm N/A 8.72 mm N/A 9.6 mm N/A CAD Icon (for items table)
CSS-M3-10 N/A M3 x 0.5 N/A #3 N/A Short N/A 5.41 mm N/A 10 mm N/A 1.04 mm N/A 4.20 mm N/A 5.39 mm N/A 5 mm N/A CAD Icon (for items table)
CSS-M4-10 N/A M4 x 0.7 N/A #2 N/A Short N/A 7.92 mm N/A 10 mm N/A 1.04 mm N/A 6.23 mm N/A 7.9 mm N/A 6.5 mm N/A CAD Icon (for items table)
CSS-M5-10 N/A M5 x 0.8 N/A #2 N/A Short N/A 8.74 mm N/A 10 mm N/A 1.04 mm N/A 7.37 mm N/A 8.72 mm N/A 9.6 mm N/A CAD Icon (for items table)
CSS-M3-12 N/A M3 x 0.5 N/A #3 N/A Short N/A 5.41 mm N/A 12 mm N/A 1.04 mm N/A 4.20 mm N/A 5.39 mm N/A 5 mm N/A CAD Icon (for items table)
CSS-M4-12 N/A M4 x 0.7 N/A #3 N/A Short N/A 7.92 mm N/A 12 mm N/A 1.04 mm N/A 6.23 mm N/A 7.9 mm N/A 6.5 mm N/A CAD Icon (for items table)
CSS-M5-12 N/A M5 x 0.8 N/A #2 N/A Short N/A 8.74 mm N/A 12 mm N/A 1.04 mm N/A 7.37 mm N/A 8.72 mm N/A 9.6 mm N/A CAD Icon (for items table)
CSS-M3-16 N/A M3 x 0.5 N/A #3 N/A Short N/A 5.41 mm N/A 16 mm N/A 1.04 mm N/A 4.20 mm N/A 5.39 mm N/A 5 mm N/A CAD Icon (for items table)
CSS-M4-16 N/A M4 x 0.7 N/A #3 N/A Short N/A 7.92 mm N/A 16 mm N/A 1.04 mm N/A 6.23 mm N/A 7.9 mm N/A 6.5 mm N/A CAD Icon (for items table)
CSS-M5-16 N/A M5 x 0.8 N/A #3 N/A Short N/A 8.74 mm N/A 16 mm N/A 1.04 mm N/A 7.37 mm N/A 8.72 mm N/A 9.6 mm N/A CAD Icon (for items table)
CSS-M3-20 N/A M3 x 0.5 N/A #3 N/A Short N/A 5.41 mm N/A 20 mm N/A 1.04 mm N/A 4.20 mm N/A 5.39 mm N/A 5 mm N/A CAD Icon (for items table)
CSS-M4-20 N/A M4 x 0.7 N/A #3 N/A Short N/A 7.92 mm N/A 20 mm N/A 1.04 mm N/A 6.23 mm N/A 7.9 mm N/A 6.5 mm N/A CAD Icon (for items table)
CSS-M5-20 N/A M5 x 0.8 N/A #3 N/A Short N/A 8.74 mm N/A 20 mm N/A 1.04 mm N/A 7.37 mm N/A 8.72 mm N/A 9.6 mm N/A CAD Icon (for items table)
CSS-M3-25 N/A M3 x 0.5 N/A #3 N/A Short N/A 5.41 mm N/A 25 mm N/A 1.04 mm N/A 4.20 mm N/A 5.39 mm N/A 5 mm N/A CAD Icon (for items table)
CSS-M4-25 N/A M4 x 0.7 N/A #3 N/A Short N/A 7.92 mm N/A 25 mm N/A 1.04 mm N/A 6.23 mm N/A 7.9 mm N/A 6.5 mm N/A CAD Icon (for items table)
CSS-M5-25 N/A M5 x 0.8 N/A #3 N/A Short N/A 8.74 mm N/A 25 mm N/A 1.04 mm N/A 7.37 mm N/A 8.72 mm N/A 9.6 mm N/A CAD Icon (for items table)
CSOS-M3-4 N/A M3 x 0.5 N/A #1 N/A Long N/A 5.41 mm N/A 4 mm N/A 1.83 mm N/A 4.20 mm N/A 5.39 mm N/A 5 mm N/A CAD Icon (for items table)
Unit of Measure
1 2 3