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All Categories > PEM / Penn Engineering > Self-Clinching Fasteners for Sheet Metal > Stainless Steel Sheet Fasteners > Type SO4 Thru-Hole Threaded Standoffs > Type SO4 Thru-Hole Threaded Standoffs (Unified) > View Items  

Type SO4 Thru-Hole Threaded Standoffs (Unified)

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Specially hardened stainless steel fasteners for use in stainless steel sheets.
  • Installed with heads flush with one surface of the mounting sheet.
  • Available unthreaded for spacing multi-panel assemblies.
  • For use in sheets of HRB 88 or less.One of the very basics of self-clinching is that the fastener must be harder than the host sheet. Only then will the fastener perform as intended. This is particularly challenging when installing fasteners into stainless steel sheets.
  • Therefore we have developed this line of specially hardened stainless steel fasteners. When pressed in they become an integral part of the sheet. They allow the use of stainless steel sheet to satisfy applications, which require lighter, stronger designs that must perform in challenging environments. Effectively eliminate welding and reduce loose hardware.
  • PEM self-clinching nuts provide strong load-bearing threads in stainless sheets as thin as 0.030"/0.8mm. When properly installed the nuts mount permanently in the sheets with one side completely flush within the panel. PEM type SP nuts also provide significant corrosion resistant properties for the most demanding conditions.
  • PEM self-clinching flush-head studs can be mounted in stainless sheets as thin as 0.040"/1mm. These studs offer convenient attachment points and achieve excellent performance values. Type FHP studs have high corrosion resistance. You can select either the FH4 or FHP types depending on the level of corrosion resistance that you require.
  • PEM self-clinching standoffs provide a permanently mounted fastener that can be used for mounting, stacking or spacing components to or from stainless steel panels. Pressed into stainless sheets as thin as 0.040"/1.02mm these fasteners are available as Type SO4 (blind) or Type BSO4 (through hole) types.
  • PEM self-clinching panel fasteners provide "tool only" access to your stainless steel assemblies.
  • Fasteners made from precipitation hardened grade stainless are particularly useful in applications such as outdoor equipment, medical devices and chemical and food processing equipment or anywhere corrosive element exposure is possible.
Quantity Discount Available.
Request Quote for orders less than 1000 or 5000, depending on fastener type.






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  Results 1 - 25 of 85 1 2 3 4 

Item #

Type

Thread Size

Length (L)

D (± 0.010)

Hole Size in Sheet (+0.003 / -0.000)

Inventory

SO4-440-4 SO4 (#4-40)
0.112-40
0.125 in. N/A 0.166 in. {}
SO4-440-6 SO4 (#4-40)
0.112-40
0.187 in. N/A 0.166 in. {}
SO4-440-8 SO4 (#4-40)
0.112-40
0.250 in. N/A 0.166 in. {}
SO4-440-10 SO4 (#4-40)
0.112-40
0.312 in. N/A 0.166 in. {}
SO4-440-12 SO4 (#4-40)
0.112-40
0.375 in. 0.187 in. 0.166 in. {}
SO4-440-14 SO4 (#4-40)
0.112-40
0.437 in. 0.187 in. 0.166 in. {}
SO4-440-16 SO4 (#4-40)
0.112-40
0.500 in. 0.187 in. 0.166 in. {}
SO4-440-18 SO4 (#4-40)
0.112-40
0.562 in. 0.187 in. 0.166 in. {}
SO4-440-20 SO4 (#4-40)
0.112-40
0.625 in. 0.312 in. 0.166 in. {}
SO4-440-22 SO4 (#4-40)
0.112-40
0.687 in. 0.312 in. 0.166 in. {}
SO4-440-24 SO4 (#4-40)
0.112-40
0.750 in. 0.312 in. 0.166 in. {}
SO4-6440-4 SO4 (#4-40)
0.112-40
0.125 in. N/A 0.213 in. {}
SO4-6440-6 SO4 (#4-40)
0.112-40
0.187 in. N/A 0.213 in. {}
SO4-6440-8 SO4 (#4-40)
0.112-40
0.250 in. N/A 0.213 in. {}
SO4-6440-10 SO4 (#4-40)
0.112-40
0.312 in. N/A 0.213 in. {}
SO4-6440-12 SO4 (#4-40)
0.112-40
0.375 in. 0.187 in. 0.213 in. {}
SO4-6440-14 SO4 (#4-40)
0.112-40
0.437 in. 0.187 in. 0.213 in. {}
SO4-6440-16 SO4 (#4-40)
0.112-40
0.500 in. 0.187 in. 0.213 in. {}
SO4-6440-18 SO4 (#4-40)
0.112-40
0.562 in. 0.187 in. 0.213 in. {}
SO4-6440-20 SO4 (#4-40)
0.112-40
0.625 in. 0.312 in. 0.213 in. {}
SO4-6440-22 SO4 (#4-40)
0.112-40
0.687 in. 0.312 in. 0.213 in. {}
SO4-6440-24 SO4 (#4-40)
0.112-40
0.750 in. 0.312 in. 0.213 in. {}
SO4-632-4 SO4 (#6-32)
0.138-32
0.125 in. N/A 0.213 in. {}
SO4-632-6 SO4 (#6-32)
0.138-32
0.187 in. N/A 0.213 in. {}
SO4-632-8 SO4 (#6-32)
0.138-32
0.250 in. N/A 0.213 in. {}
  Results 1 - 25 of 85 1 2 3 4