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All Categories > PEM® Brand Self-Clinching, Broaching, Surface Mount, Flare and Weld Mounted Fasteners > Studs and Pins for Sheet Metal > Heavy Duty Studs, Non Flush – Types HFH, HFHB, HFE, HFHS > Heavy Duty Studs, non Flush – Types HFH, HFHB, HFHS > High-Strength Studs - Type HFH/HFHS/HFHB - Unified > Part # HFH-0616-16ZI  
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Part # HFH-0616-16ZI, High-Strength Studs - Type HFH/HFHS/HFHB - Unified




PEM® self-clinching studs are installed by placing them in properly sized holes in the sheets and squeezing into place with any standard press. The squeezing action embeds the head of the stud into the sheet. The metal displaced by the head flows smoothly and evenly around the ribs and into the annular groove - creating a flushhead assembly and securely locking the stud into the sheet with high torque-out and pushout resistances.
HFH (heavy-duty) Studs replace weld studs with easier installation at lower costs. The large stud head which projects above the sheet material distributes the axial tightening force over a large area thereby improving pull through resistance .
HFHB (heavy-duty BUSBAR®) Studs are ideal for applications which demand superior electrical/mechanical attachment points. Phosphor bronze studs offer twice the conductivity of carbon steel studs
  • Types HFH and HFHS are for high-strength applications in sheets as thin as .050” .
  • Type HFHB is for superior electrical/mechanical attachment in copper.
  • Type HFH is recommended for use in steel or aluminum sheets HRB (Rockwell “B” Scale) 85 or less and HB (Hardness Brinell) 165 or less.
  • Type HFHS is recommended for use in steel or aluminum sheets HRB (Rockwell “B” Scale) 70 or less and HB (Hardness Brinell) 125 or less.
  • Type HFHB is recommended for use in copper sheets HRB (Rockwell “B” Scale) 55 or less and HB (Hardness Brinell) 83 or less.

Heavy duty studs, non flush - HFH, HFHB,  HFHS

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High-Strength Studs - Type HFH/HFHS/HFHB 2

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 Specifications  

Thread Size

.375-16 (3/8-16)

Thread Code

0616

Length Code

16

Min. Sheet Thickness

.090 in

Hole Size in Sheet + .005 - .000

.375 in

Max. Hole in Attached Parts

.437 in

L - Length ± .015

1.000 in

H ± .01

.580 in

S Max.1

.155 in

T Max.

.085 in

Min. Dist. Hole C/L to Edge

.530 in

Thread Strength

120 ksi

For Use in Sheet Hardness

HRB 85 / HB 165 or Less

Thread Specification

External, ANSI B1.1, 2A

Fastener Material

Heat-Treated Carbon Steel

Standard Finish

Zinc Plated, 5µm, 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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