Zygology
Zygology Ltd
Unit 7, Thame 40 Jane Morbey Road
Thame Oxon OX9 3RR
Phone: 0808 123 1221
Fax: +44 1844 266021
Email: sales@zygology.com
Web Address: www.zygology.com
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PEM® brand self-clinching blind fasteners provide permanently mounted blind threads in metal sheets as thin as .040”.
  • Provides barrier to protect threads against foreign matter.
  • Protects internal components from intrusion of screws.
PEM blind fasteners employ the proven PEM self-clinching design and are easily installed in properly sized holes. Shanks of PEM fasteners act as their own pilots. PEM blind fasteners can be installed with any standard press applying squeezing forces between parallel surfaces.

PEM self-clinching blind fasteners are available in thread sizes from #4-40 through 1/4-20 in carbon or stainless steel.
Blind nuts – B, BS
Self-Clinching Blind Fasteners - Types B, BS 2
Unit of Measure
1 

Item #

Thread Size

A (Shank) Max.

Hole Size in Sheet + .003 - .000

E ± .010

T ± .010

Fastener Material

Standard Finish

CAD

B-440-1ZI N/A .112-40 (#4-40) N/A 0.038 in N/A .166 in N/A .250 in N/A .380 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)
B-632-1ZI N/A .138-32 (#6-32) N/A 0.038 in N/A .188 in N/A .280 in N/A .380 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)
B-832-1ZI N/A .164-32 (#8-32) N/A 0.038 in N/A .213 in N/A .310 in N/A .440 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)
B-032-1ZI N/A .190-32 (#10-32) N/A 0.038 in N/A .250 in N/A .340 in N/A .440 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)
B-0420-1ZI N/A .250-20 (1/4-20) N/A .054 in N/A .344 in N/A .430 in N/A .560 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)
B-440-2ZI N/A .112-40 (#4-40) N/A .054 in N/A .166 in N/A .250 in N/A .380 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)
B-632-2ZI N/A .138-32 (#6-32) N/A .054 in N/A .188 in N/A .280 in N/A .380 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)
B-832-2ZI N/A .164-32 (#8-32) N/A .054 in N/A .213 in N/A .310 in N/A .440 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)
B-032-2ZI N/A .190-32 (#10-32) N/A .054 in N/A .250 in N/A .340 in N/A .440 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)
B-0420-2ZI N/A .250-20 (1/4-20) N/A .087 in N/A .344 in N/A .430 in N/A .560 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)
BS-440-1 N/A .112-40 (#4-40) N/A 0.038 in N/A .166 in N/A .250 in N/A .380 in N/A 300 Series Stainless Steel N/A Passivated and/or Tested Per ASTM A380 N/A CAD Icon (for items table)
BS-632-1 N/A .138-32 (#6-32) N/A 0.038 in N/A .188 in N/A .280 in N/A .380 in N/A 300 Series Stainless Steel N/A Passivated and/or Tested Per ASTM A380 N/A CAD Icon (for items table)
BS-832-1 N/A .164-32 (#8-32) N/A 0.038 in N/A .213 in N/A .310 in N/A .440 in N/A 300 Series Stainless Steel N/A Passivated and/or Tested Per ASTM A380 N/A CAD Icon (for items table)
BS-032-1 N/A .190-32 (#10-32) N/A 0.038 in N/A .250 in N/A .340 in N/A .440 in N/A 300 Series Stainless Steel N/A Passivated and/or Tested Per ASTM A380 N/A CAD Icon (for items table)
BS-0420-1 N/A .250-20 (1/4-20) N/A .054 in N/A .344 in N/A .430 in N/A .560 in N/A 300 Series Stainless Steel N/A Passivated and/or Tested Per ASTM A380 N/A CAD Icon (for items table)
BS-440-2 N/A .112-40 (#4-40) N/A .054 in N/A .166 in N/A .250 in N/A .380 in N/A 300 Series Stainless Steel N/A Passivated and/or Tested Per ASTM A380 N/A CAD Icon (for items table)
BS-632-2 N/A .138-32 (#6-32) N/A .054 in N/A .188 in N/A .280 in N/A .380 in N/A 300 Series Stainless Steel N/A Passivated and/or Tested Per ASTM A380 N/A CAD Icon (for items table)
BS-832-2 N/A .164-32 (#8-32) N/A .054 in N/A .213 in N/A .310 in N/A .440 in N/A 300 Series Stainless Steel N/A Passivated and/or Tested Per ASTM A380 N/A CAD Icon (for items table)
BS-032-2 N/A .190-32 (#10-32) N/A .054 in N/A .250 in N/A .340 in N/A .440 in N/A 300 Series Stainless Steel N/A Passivated and/or Tested Per ASTM A380 N/A CAD Icon (for items table)
BS-0420-2 N/A .250-20 (1/4-20) N/A .087 in N/A .344 in N/A .430 in N/A .560 in N/A 300 Series Stainless Steel N/A Passivated and/or Tested Per ASTM A380 N/A CAD Icon (for items table)
Unit of Measure
1