PennEngineering
PennEngineering
Corporate Headquarters – Danboro, PA
5190 Old Easton Rd.
Danboro, PA 18916
Phone: 215-766-8853
Toll-Free Phone: 1-800-237-4736 (U.S. only)
Email: info@pemnet.com
Website: www.pemnet.com
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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.

When blind-threaded types are used, outer sheet surfaces are not only flush, but closed as well.

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.
Blind Threaded Standoffs - Types BSO, BSOA, BSOS
Blind Threaded Standoffs - Types BSO, BSOA, BSOS 2
Unit of Measure
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Part #

Thread Size

Hole Size in Sheet + .003 - .000

C + .000 - .005

F Min.

H Nom.

L - Length +.002 –.005

Fastener Material

Standard Finish

CAD

BSO-6440-34ZI N/A .112-40 (#4-40) N/A .213 in N/A .212 in N/A .375 in N/A .250 in N/A 1.062 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
BSO-632-10ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .156 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 CAD Icon (for items table)
BSO-632-12ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .156 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 CAD Icon (for items table)
BSO-632-14ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .187 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 CAD Icon (for items table)
BSO-632-16ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .250 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 CAD Icon (for items table)
BSO-632-18ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .250 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 CAD Icon (for items table)
BSO-632-20ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .250 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 CAD Icon (for items table)
BSO-632-22ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .375 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 CAD Icon (for items table)
BSO-632-24ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .375 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 CAD Icon (for items table)
BSO-632-26ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .375 in N/A .250 in N/A .812 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
BSO-632-28ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .375 in N/A .250 in N/A .875 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
BSO-632-30ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .375 in N/A .250 in N/A .937 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
BSO-632-32ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .375 in N/A .250 in N/A 1.00 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
BSO-632-34ZI N/A .138-32 (#6-32) N/A .213 in N/A .212 in N/A .375 in N/A .250 in N/A 1.062 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
BSO-8632-10ZI N/A .138-32 (#6-32) N/A .281 in N/A .280 in N/A .156 in N/A .312 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 CAD Icon (for items table)
BSO-8632-12ZI N/A .138-32 (#6-32) N/A .281 in N/A .280 in N/A .156 in N/A .312 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 CAD Icon (for items table)
BSO-8632-14ZI N/A .138-32 (#6-32) N/A .281 in N/A .280 in N/A .187 in N/A .312 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 CAD Icon (for items table)
BSO-8632-16ZI N/A .138-32 (#6-32) N/A .281 in N/A .280 in N/A .250 in N/A .312 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 CAD Icon (for items table)
BSO-8632-18ZI N/A .138-32 (#6-32) N/A .281 in N/A .280 in N/A .250 in N/A .312 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 CAD Icon (for items table)
BSO-8632-20ZI N/A .138-32 (#6-32) N/A .281 in N/A .280 in N/A .250 in N/A .312 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 CAD Icon (for items table)
BSO-8632-22ZI N/A .138-32 (#6-32) N/A .281 in N/A .280 in N/A .375 in N/A .312 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 CAD Icon (for items table)
BSO-8632-24ZI N/A .138-32 (#6-32) N/A .281 in N/A .280 in N/A .375 in N/A .312 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 CAD Icon (for items table)
BSO-8632-26ZI N/A .138-32 (#6-32) N/A .281 in N/A .280 in N/A .375 in N/A .312 in N/A .812 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
BSO-8632-28ZI N/A .138-32 (#6-32) N/A .281 in N/A .280 in N/A .375 in N/A .312 in N/A .875 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
BSO-8632-30ZI N/A .138-32 (#6-32) N/A .281 in N/A .280 in N/A .375 in N/A .312 in N/A .937 in N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
Unit of Measure
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