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All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Nuts for Sheet Metal > Nylon Insert, Locking Thread Nuts – Types CFN, PL, PLC > Nylon Insert, Locking Thread Nuts – Type PL, PLC > Nylon Insert Self-Locking Fasteners - Types PL and PLC - Unified > Part # PL-632-ZI  

Part # PL-632-ZI, Nylon Insert Self-Locking Fasteners - Types PL and PLC - Unified

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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 beneath the collar is filled with displaced sheet material, thereby captivating the fastener in the sheet.

The color blue for fastener locking elements is a registered trademark. Unified fasteners have a blue nylon locking element and metric fasteners have a black nylon locking element.




 Specifications   

Thread Size
.138-32 (#6-32)

Thread Code
632

A (Shank) Max.
.060 in

Sheet Thickness1
.040 to .070 in

Hole Size in Sheet + .003 - .000
.265 in

C Max.

 View
.264 in

D Max.
.246 in

E Max.
.305 in

T Max.
.130 in

Min. Dist. Hole C/L to Edge
.19 in

Max. Hole in Attached Parts
.158 in

Fastener Materials - Locking Element
Blue Nylon

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

Thread Specification
Internal, ANSI B1.1, 2B

Fastener Material
Heat-Treated Carbon Steel

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

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.


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