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The thread locking torque performance of Type PL and PLC PEMHEX® self-clinching fasteners is equivalent to applicable NASM25027 specifications. A nylon hexagonal element provides a reusable, non-metallic prevailing torque thread lock. The strong knurled collar receives the installation force and resists torque. The spin resistance of the knurl greatly exceeds the torque that can be exerted by the self-locking feature. As the knurled collar is embedded in the sheet, the undercut cavity beneathmore
Unit of Measure

Specifications

Thread Size

M5 x 0.8

Thread Code

M5

A (Shank) Max.

1.53 mm
Sheet Thickness1 1 to 1.78 mm

Hole Size in Sheet + 0.08

8 mm

C Max.

7.98 mm a1363.jpg

D Max.

7.52 mm

E Max.

9 mm

T Max.

4.45 mm

Min. Dist. Hole C/L to Edge

6.35 mm

Max. Hole in Attached Parts

5.50 mm

Fastener Materials - Locking Element

Black Nylon
For Use in Sheet Hardness2 HRB 70 / HB 125 or Less

Thread Specification

Internal, ASME B1.13M, 6H

Fastener Material

Heat-Treated Carbon Steel

Optional Finish

Zinc plated per ASTM B633, SC1 (5µm), Type II, yellow

CAD Supplier

PennEngineering® (PEM®)
  • 1 - Can be used in panel thickness of .040” to .060” / 1 mm to 1.53 mm provided the fastener is not fully installed. The knurled collar must be left protruding above the sheet to the degree that the sheet thickness is less than .060” / 1.53 mm.

    - Knurled collar may fracture if fastener is used in sheets thicker than .070” / 1.78 mm and screw is tightened beyond maximum tightening torque.
  • 2 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.