Thru-hole Threaded Standoffs - Types SO, SOA, SOS - Unified On Hi-Tech Fasteners, Inc.

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.

PEM® brand thru-hole threaded standoffs are installed with their heads flush with one surface of the mounting sheet.

Thru-hole Threaded Standoffs - Types SO, SOA, SOS 2

Part #	Thread Size	Hole Size in Sheet + .003 - .000	C + .000 - .005	H Nom.	L - Length +.002 –.005	Fastener Material	Standard Finish	CAD	Inventory
SO-440-4ZI	N/A .112-40 (#4-40)	N/A .166 in	N/A .165 in	N/A .187 in	N/A .125 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-440-6ZI	N/A .112-40 (#4-40)	N/A .166 in	N/A .165 in	N/A .187 in	N/A .187 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-440-8ZI	N/A .112-40 (#4-40)	N/A .166 in	N/A .165 in	N/A .187 in	N/A .250 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-440-10ZI	N/A .112-40 (#4-40)	N/A .166 in	N/A .165 in	N/A .187 in	N/A .312 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-440-12ZI	N/A .112-40 (#4-40)	N/A .166 in	N/A .165 in	N/A .187 in	N/A .375 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-440-14ZI	N/A .112-40 (#4-40)	N/A .166 in	N/A .165 in	N/A .187 in	N/A .437 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-440-16ZI	N/A .112-40 (#4-40)	N/A .166 in	N/A .165 in	N/A .187 in	N/A .500 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-440-18ZI	N/A .112-40 (#4-40)	N/A .166 in	N/A .165 in	N/A .187 in	N/A .562 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-440-20ZI	N/A .112-40 (#4-40)	N/A .166 in	N/A .165 in	N/A .187 in	N/A .625 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-440-22ZI	N/A .112-40 (#4-40)	N/A .166 in	N/A .165 in	N/A .187 in	N/A .687 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-440-24ZI	N/A .112-40 (#4-40)	N/A .166 in	N/A .165 in	N/A .187 in	N/A .750 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-6440-4ZI	N/A .112-40 (#4-40)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .125 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-6440-6ZI	N/A .112-40 (#4-40)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .187 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-6440-8ZI	N/A .112-40 (#4-40)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .250 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-6440-10ZI	N/A .112-40 (#4-40)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .312 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-6440-12ZI	N/A .112-40 (#4-40)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .375 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-6440-14ZI	N/A .112-40 (#4-40)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .437 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-6440-16ZI	N/A .112-40 (#4-40)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .500 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-6440-18ZI	N/A .112-40 (#4-40)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .562 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-6440-20ZI	N/A .112-40 (#4-40)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .625 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-6440-22ZI	N/A .112-40 (#4-40)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .687 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-6440-24ZI	N/A .112-40 (#4-40)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .750 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-632-4ZI	N/A .138-32 (#6-32)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .125 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-632-6ZI	N/A .138-32 (#6-32)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .187 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}
SO-632-8ZI	N/A .138-32 (#6-32)	N/A .213 in	N/A .212 in	N/A .250 in	N/A .250 in	N/A Heat-Treated Carbon Steel	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless	N/A	N/A {0}

Part #

Thread Size

Hole Size in Sheet + .003 - .000

C + .000 - .005

H Nom.

L - Length +.002 –.005

Fastener Material

Standard Finish

CAD

Inventory

SO-440-4ZI

N/A .112-40 (#4-40)

N/A .166 in

N/A .165 in

N/A .187 in

N/A .125 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-440-6ZI

N/A .112-40 (#4-40)

N/A .166 in

N/A .165 in

N/A .187 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-440-8ZI

N/A .112-40 (#4-40)

N/A .166 in

N/A .165 in

N/A .187 in

N/A .250 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-440-10ZI

N/A .112-40 (#4-40)

N/A .166 in

N/A .165 in

N/A .187 in

N/A .312 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-440-12ZI

N/A .112-40 (#4-40)

N/A .166 in

N/A .165 in

N/A .187 in

N/A .375 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-440-14ZI

N/A .112-40 (#4-40)

N/A .166 in

N/A .165 in

N/A .187 in

N/A .437 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-440-16ZI

N/A .112-40 (#4-40)

N/A .166 in

N/A .165 in

N/A .187 in

N/A .500 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-440-18ZI

N/A .112-40 (#4-40)

N/A .166 in

N/A .165 in

N/A .187 in

N/A .562 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-440-20ZI

N/A .112-40 (#4-40)

N/A .166 in

N/A .165 in

N/A .187 in

N/A .625 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-440-22ZI

N/A .112-40 (#4-40)

N/A .166 in

N/A .165 in

N/A .187 in

N/A .687 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-440-24ZI

N/A .112-40 (#4-40)

N/A .166 in

N/A .165 in

N/A .187 in

N/A .750 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-6440-4ZI

N/A .112-40 (#4-40)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .125 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-6440-6ZI

N/A .112-40 (#4-40)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .187 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-6440-8ZI

N/A .112-40 (#4-40)

N/A .213 in

N/A .212 in

N/A .250 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-6440-10ZI

N/A .112-40 (#4-40)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .312 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-6440-12ZI

N/A .112-40 (#4-40)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .375 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-6440-14ZI

N/A .112-40 (#4-40)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .437 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-6440-16ZI

N/A .112-40 (#4-40)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .500 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-6440-18ZI

N/A .112-40 (#4-40)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .562 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-6440-20ZI

N/A .112-40 (#4-40)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .625 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-6440-22ZI

N/A .112-40 (#4-40)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .687 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-6440-24ZI

N/A .112-40 (#4-40)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .750 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-632-4ZI

N/A .138-32 (#6-32)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .125 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-632-6ZI

N/A .138-32 (#6-32)

N/A .213 in

N/A .212 in

N/A .250 in

N/A .187 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}

SO-632-8ZI

N/A .138-32 (#6-32)

N/A .213 in

N/A .212 in

N/A .250 in

N/A Heat-Treated Carbon Steel

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

N/A

N/A {0}