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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.

Types SO4 standoffs are for installation into stainless steel sheets as thin as 1.
Unit of Measure

Thread Size x Pitch

N/A M3 x 0.5

Thread Code

N/A 3.5M3

Length Code

N/A 12

Material Code

N/A 4
Min. Sheet Thickness1 N/A 1 mm

Hole Size in Sheet + 0.08

N/A 5.41 mm

B - Counter-Bore Dia. ± 0.13

N/A 3.25 mm a1352.jpg

C - 0.13

N/A 5.39 mm

D ± 0.25

N/A 4.00 mm

H Nom.

N/A 6.4 mm

L - Length +0.05 –0.13

N/A 12 mm

Min. Dist. Hole C/L to Edge

N/A 6.8 mm
For Use in Sheet Hardness2 N/A HRB 88 / HB 176 or Less

Thread Specification

N/A Internal, ANSI/ASME B1.13M, 6H

Fastener Material

N/A 400 Series Stainless Steel

Standard Finish

N/A Electroless Nickel over Copper over Nickel strike per ASTM B733

CAD Supplier

N/A PennEngineering® (PEM®)
  • 1 For maximum performance, we recommend that you use the maximum shank length for your sheet thickness.
  • 2 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.

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