BS-0420-2

Self-Clinching Blind Fasteners – Types B, BS

BS-0420-2

Self-Clinching Blind Fasteners – Types B, BS

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.

Specifications

Thread Code
420
Thread Size
1/4-20
Thread Specification
2B, ANSI B1.1, Internal
Shank Code
2
Fastener Material
300 Series Stainless Steel
Standard Finish
Passivated and/or tested
For Use in Sheet Hardness
HRB 70 / HB 125 or Less
Product Category
Self-Clinching Blind Fasteners – Types B, BS
CAD Supplier
PennEngineering® (PEM®)
CADPartID
103682
Application Type
Aerospace, Automotive, Automotive Electronics, Commercial Vehicles, Datacom, Electric Vehicle Chargers, Electric Vehicles, Electronics, Industrial, Manufacturing & Sheet Metal Fabrication, Marine, Medical, Renewable Energy, Telecom
Base Panel Material
Aluminum, Steel
Brand
PEM
Fastener Characteristics
Threaded Internal
Industry
Automotive, Automotive Electronics, Datacom & Telecom, Defense, Electric Vehicles, Industrial & Commercial, Medical
Installation Equipment/Method
C-Frame Automatic Feed, C-Frame Manual Feed
PEM Product Family
B
Product Type
Nuts
Technology Type
Self-Clinching
Unit (Metric/Unified)
Unified
A Shank Max
0.087in
B Max._in
0.305in
E ± .010_in
0.43in
F Min._in
0.31in
Hole Size in Sheet + .003 – .000_in
0.344in
L Max._in
0.5in
Min. Dist. Hole C/L to Edge_in
0.34in
Min. Sheet Thickness_in
0.09in
C Max._in
0.343in
T ± .010_in
0.56in

Resources

Installation & Performance Data

b-b-bs-unified
TYPE THREAD CODE SHANK CODE TEST SHEET THICKNESS TEST SHEET MATERIAL INSTALLATION (lbs.) PUSHOUT (lbs.) TORQUE-OUT (in. lbs.)
B, BS 0420 1 0.056 5052-H34 Aluminum 4000 315 90
B, BS 0420 2 0.090 5052-H34 Aluminum 4000 315 90
B, BS 0420 1 0.056 Cold-Rolled Steel 6000 400 105
B, BS 0420 2 0.090 Cold-Rolled Steel 6000 400 105

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