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PEM® Brand Fasteners for Metal Sheets and Panels
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Studs and Pins for Sheet Metal
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Heavy Duty Studs, Non Flush – Types HFH, HFHB, HFE, HFHS, THFE
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Heavy Duty Studs For Thin Sheets – Type THFE
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Heavy Duty Studs for Thin Sheets - Type THFE - Unified
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Part # THFE-0518-12ZI
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Part # THFE-0518-12ZI, Heavy Duty Studs for Thin Sheets - Type THFE - Unified
Enlarged head diameter reduces stress on panel.
Thicker head allows for larger hole in attached panels.
Clinch design provides high-strength in sheets as thin as .031”.
Recommended for use in steel or aluminum sheets HRB (Rockwell “B” Scale) 85 or less and HB (Hardness Brinell) 165 or less.
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Specifications
Thread Size
.313-18 (5/16-18)
Thread Code
0518
Length Code
12
Min. Sheet Thickness
.031
in
Hole Size in Sheet + .005 - .000
.312
in
L - Length ± .015
.750
in
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H ± .01
.586
in
S Max.
1
.117
in
T Max.
.099
in
Max. Hole in Attached Parts
.402
in
Min. Dist. Hole C/L to Edge
.596
in
Thread Strength
120
ksi
For Use in Sheet Hardness
HRB 85 / HB 165 or Less
Thread Specification
External, ASME B1.1, 2A
Fastener Material
Hardened Carbon Steel
Standard Finish
Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
CAD Supplier
PennEngineering® (PEM®)
1
Threads are gageable to within 2 pitches of the “S” Max. dimension. A class 3B/5H maximum material commercial nut shall pass up to the “S” Max. dimension.
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