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All Categories > Standoffs and Spacers > Metric Standoffs and Spacers > Blind Threaded Standoffs - Metric > MFG # BSOS-3.5M3-14  
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MFG # BSOS-3.5M3-14, Blind Threaded Standoffs - Metric

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These standoffs, which use the proven self-clinching design, install with a squeeze in punched or drilled round holes - and become permanently mounted in the thin sheet.
When blind-threaded types are used, outer sheet surfaces are not only flush, but closed as well.
PEM® self-clinching standoffs are also available on special order in non-heat treated carbon steel as type SON (thru-hole threaded) or BSON (blind threaded).
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.

The installation, pushout, torque-out and pull-thru values reported are averages when all installation specifications and procedures are followed. Variations in mounting hole size, sheet material and installation procedure will affect this data. Performance testing of this product in your application is recommended. We will be happy to provide samples for this purpose.

Inventory  · Specifications  · Performance Data


On Hand



Thread Size

M3 x 0.5


Internal, ANSI B1.1 2B ANSI/ASME B1.13M, 6H

L +0.05 -0.13

14.00 mm

H - Diameter Hole Size in Sheet +0.08

5.41 mm

F Min.

6.50 mm

Fastener Material

300 Series Stainless Steel

Standard Finish

Passivated and/or Tested Per ASTM A380

For Use in Sheet Hardness

HRB 70 / HB 125 or Less

Min. Sheet Thickness

1.02 mm

C -0.13

5.39 mm

H Nom.

6.40 mm

Min. Distance Hole C/L to Edge

6.80 mm

Performance Data

5052-H34 Aluminum - Installation

7.6 kN

5052-H34 Aluminum - Pushout

1330 N

Cold-Rolled Steel - Installation

14.7 kN

Cold-Rolled Steel - Pushout

1860 N

5052-H34 Aluminum - Torque-Out

1.24 N·m

Cold-Rolled Steel - Torque-Out

2.15 N·m

Max. Rec. Tightening Torque for Mating Screw

0.44 N·m

Test Sheet Thickness

1.50 mm

5052-H34 Aluminum - Pull-Thru

996 N

Cold-Rolled Steel - Pull-Thru

1172 N


·  SO, SOS, SOA, SO4, BSO, BSOS, BSOA and BSO4 Standoff Installation

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