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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
Unit of Measure

Thread Size x Pitch

 M5 x 0.8

Thread Code

 M5

Length Code

 20

Min. Sheet Thickness

 1.0 mm

Hole Size in Sheet + 0.13

 5 mm

L - Length ± 0.4

 20 mm
Type-HFL-Hard-Panel-Studs_2.jpg

H ± 0.25

 9.6 mm
S Max.1 2.6 mm

T Max.

 1.35 mm

Max. Hole in Attached Parts

 7.3 mm

Min. Dist. Hole C/L to Edge

 10 mm

Tensile strength

 900 MPa
For Use in Sheet Hardness2 HRB 96 / HB 216 or Less

Thread Specification

 External, ASME B1.1, 2A / ASME B1.13M, 6g

Fastener Material

 Heat-Treated Alloy Steel
Optional Finish3 No Finish (with Rust Preventative Oil)

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.
  • 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.