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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 1.02mm.

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.
Thru-Hole Threaded Standoffs - Type SO4
Thru-Hole Threaded Standoffs for Installation into Stainless Steel - Type SO4 2
Unit of Measure
Items Thru-Hole Threaded Standoffs - Type SO4
SO4-M3-3
Thru-Hole Threaded Standoffs for Installation into Stainless Steel - Type SO4 - Metric
Thru-Hole Threaded Standoffs - Type SO4
SO4-M3-4
Thru-Hole Threaded Standoffs for Installation into Stainless Steel - Type SO4 - Metric
Thru-Hole Threaded Standoffs - Type SO4
SO4-M3-6
Thru-Hole Threaded Standoffs for Installation into Stainless Steel - Type SO4 - Metric
Thru-Hole Threaded Standoffs - Type SO4
SO4-M3-8
Thru-Hole Threaded Standoffs for Installation into Stainless Steel - Type SO4 - Metric
Thru-Hole Threaded Standoffs - Type SO4
SO4-M3-10
Thru-Hole Threaded Standoffs for Installation into Stainless Steel - Type SO4 - Metric
Description N/A 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 1.02mm.

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.
Thread Size x Pitch N/A M3 x 0.5
Thread Code N/A M3
Length Code N/A 3 N/A 4 N/A 6 N/A 8 N/A 10
Material Code N/A 4
Min. Sheet Thickness N/A 1.0 mm
Hole Size in Sheet + 0.08 N/A 4.22 mm
B - Counter-Bore Dia. ± 0.13 N/A 3.25 mm a1352.jpg
C - 0.13 N/A 4.2 mm
D ± 0.25 N/A 0 mm N/A 0 mm N/A 0 mm N/A 0 mm N/A 4.00 mm
H Nom. N/A 4.8 mm
L - Length +0.05 –0.13 N/A 3 mm N/A 4 mm N/A 6 mm N/A 8 mm N/A 10 mm
Min. Dist. Hole C/L to Edge N/A 6.00 mm
For Use in Sheet Hardness1 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 Passivated and/or tested per ASTM A380
CAD Supplier N/A PennEngineering® (PEM®)
  • 1 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.