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  • Installs into thinner, harder, high strength steel materials (high strength steel sheets up to 700 MPa maximum ultimate tensile)
  • Allows overall weight reduction for all vehicles
  • Provides lower installed cost
Compare to other thin sheet fastening devices:
  • Addresses environmental concerns
  • Lighter weight
  • Close to edge of panel mounting
  • No embossing required
  • Hardened stud material provides stronger thread strength
  • Can be installed automatically using press or in-die technology
Type HFLH™ Hard Panel Studs
Type HFLH™ Hard Panel Studs_2
Unit of Measure
Items Type HFLH™ Hard Panel Studs
HFLH-032-8ZI
Type HFLH™ Hard Panel Studs - Unified
Type HFLH™ Hard Panel Studs
HFLH-032-12ZI
Type HFLH™ Hard Panel Studs - Unified
Type HFLH™ Hard Panel Studs
HFLH-032-16ZI
Type HFLH™ Hard Panel Studs - Unified
Type HFLH™ Hard Panel Studs
HFLH-032-20ZI
Type HFLH™ Hard Panel Studs - Unified
Type HFLH™ Hard Panel Studs
HFLH-032-24ZI
Type HFLH™ Hard Panel Studs - Unified
Thread Size N/A .190-32 (#10-32)
Thread Code N/A 032
Length Code N/A 8 N/A 12 N/A 16 N/A 20 N/A 24
Min. Sheet Thickness N/A .040 in
Hole Size in Sheet + .005 - .000 N/A .190 in
L - Length ± .015 N/A .500 in Type-HFL-Hard-Panel-Studs_2.jpg N/A .750 in Type-HFL-Hard-Panel-Studs_2.jpg N/A 1.00 in Type-HFL-Hard-Panel-Studs_2.jpg N/A 1.25 in Type-HFL-Hard-Panel-Studs_2.jpg N/A 1.50 in Type-HFL-Hard-Panel-Studs_2.jpg
H ± .01 N/A .357 in
S Max.1 N/A .102 in
T Max. N/A .048 in
Max. Hole in Attached Parts N/A .280 in
Min. Dist. Hole C/L to Edge N/A .360 in
Tensile strength N/A 120 ksi
For Use in Sheet Hardness2 N/A HRB 96 / HB 216 or Less
Thread Specification N/A External, ASME B1.1, 2A / ASME B1.13M, 6g
Fastener Material N/A Heat-Treated Alloy Steel
Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
Optional Finish3 N/A
CAD Supplier N/A 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.
  • 2 HRB - Hardness Rockwell "B" Scale. HB - Hardness Brinell
  • 3 “X” suffix studs may have pitch diameters and major diameters below 2A “Basic”, per ANSI B1.1, Section 7, and B1.13M, Section 8 to allow for minimum of 0.0002” / 0.0051 mm of plating.