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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, THFE > 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 s

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

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

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Thread Size

.375-16 (3/8-16)

Thread Code


Length Code


Min. Sheet Thickness

.090 in

Hole Size in Sheet + .005 - .000

.375 in

Max. Hole in Attached Parts

.437 in

L - Length ± .015

1.00 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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