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 .
Unit of Measure


Thread Size

N/A 0.112-40 (#4-40)

Thread Code

N/A 6440

Length Code

N/A 16

Material Code

N/A 4

Min. Sheet Thickness

N/A 0.040 in

Hole Size in Sheet + .003 - .000

N/A 0.213 in

C + 0.000 - 0.005

N/A 0.212 in a-1353.jpg

F Min.

N/A 0.25 in

H Nom.

N/A 0.25 in

L - Length +.002 –.005

N/A 0.5 in

Min. Dist. Hole C/L to Edge

N/A 0.28 in
For Use in Sheet Hardness1 N/A HRB 88/HB 176 or Less

Thread Specification

N/A Internal, ANSI B1.1, 2B

Fastener Material

N/A 400 Series Stainless Steel

Standard Finish

N/A Passivated and/or tested per ASTM A380

CAD Supplier

N/A PennEngineering® (PEM®)

On Hand

N/A {0}
  • 1 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.