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All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Standoffs for Sheet Metal > Blind, Threaded Standoffs – Types BSO, BSO4, BSOA, BSOS > Blind Threaded Standoffs – Type BSO4 > Blind Threaded Standoffs for Installation into Stainless Steel - Type BSO4 - Unified > Part # BSO4-440-28  

Part # BSO4-440-28, Blind Threaded Standoffs for Installation into Stainless Steel - Type BSO4 - Unified

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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 BSO4 standoffs are for installation into stainless steel sheets as thin as .040”.

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.




 Specifications   

Thread Size
.112-40 (#4-40)

Thread Code
440

Length Code
28

Material Code
4

Min. Sheet Thickness
.040 in

Hole Size in Sheet + .003 - .000
.166 in

C + .000 - .005

 View
.165 in

F Min.
.375 in

H Nom.
.187 in

L - Length +.002 –.005
.875 in

Min. Dist. Hole C/L to Edge
.23 in

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

Thread Specification
Internal, ANSI B1.1, 2B

Fastener Material
400 Series Stainless Steel

Standard Finish
Passivated and/or tested per ASTM A380

CAD Supplier
PennEngineering® (PEM®)
1 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.



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