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 BSO4 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.
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Unit of Measure

Thread Size x Pitch

 M3 x 0.5

Thread Code

 M3

Length Code

 12

Material Code

 4
Min. Sheet Thickness1 1.0 mm

Hole Size in Sheet + 0.08

 4.22 mm

C - 0.13

 4.2 mm
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F Min.

 5.00 mm

H Nom.

 4.8 mm

L - Length + 0.05 –0.13

 12 mm

Min. Dist. Hole C/L to Edge

 6.00 mm
For Use in Sheet Hardness2 HRB 88 / HB 176 or Less

Thread Specification

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

Fastener Material

 400 Series Stainless Steel

Standard Finish

 Passivated and/or tested per ASTM A380

CAD Supplier

 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.