• 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
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Unit of Measure

Thread Size x Pitch

 M8 x 1.25

Thread Code

 M8

Length Code

 15
Min. Sheet Thickness1 1.5 mm

Hole Size in Sheet + 0.13

 8 mm

L - Length ± 0.4

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

H ± 0.25

 15.3 mm
S Max.2 3.3 mm

T Max.

 2.13 mm

Max. Hole in Attached Parts

 10.3 mm

Min. Dist. Hole C/L to Edge

 14.5 mm

Tensile strength

 900 MPa
For Use in Sheet Hardness3 HRB 96 / HB 216 or Less

Thread Specification

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

Fastener Material

 Heat-Treated Alloy Steel

Standard Finish

 Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

CAD Supplier

 PennEngineering® (PEM®)
  • 1 For maximum performance, we recommend that you use the maximum shank length for your sheet thickness.
  • 2 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.
  • 3 HRB - Hardness Rockwell "B" Scale. HB - Hardness Brinell