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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.
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Part #

Thread Size

Hole Size in Sheet + .003 - .000

C Max.

D Max.

T Max.

Standard Finish

Optional Finish

CAD

PL-440-ZI N/A .112-40 (#4-40) N/A .234 in N/A .233 in N/A .215 in N/A .130 in N/A Zinc Plated, 5µm, Colorless N/A N/A
PL-632-ZI N/A .138-32 (#6-32) N/A .265 in N/A .264 in N/A .246 in N/A .130 in N/A Zinc Plated, 5µm, Colorless N/A N/A
PL-832-ZI N/A .164-32 (#8-32) N/A .297 in N/A .296 in N/A .278 in N/A .155 in N/A Zinc Plated, 5µm, Colorless N/A N/A
PL-032-ZI N/A .190-32 (#10-32) N/A .312 in N/A .311 in N/A .293 in N/A .165 in N/A Zinc Plated, 5µm, Colorless N/A N/A
PL-440-ZC N/A .112-40 (#4-40) N/A .234 in N/A .233 in N/A .215 in N/A .130 in N/A N/A Zinc Plated 5µm, Yellow N/A
PL-632-ZC N/A .138-32 (#6-32) N/A .265 in N/A .264 in N/A .246 in N/A .130 in N/A N/A Zinc Plated 5µm, Yellow N/A
PL-832-ZC N/A .164-32 (#8-32) N/A .297 in N/A .296 in N/A .278 in N/A .155 in N/A N/A Zinc Plated 5µm, Yellow N/A
PL-032-ZC N/A .190-32 (#10-32) N/A .312 in N/A .311 in N/A .293 in N/A .165 in N/A N/A Zinc Plated 5µm, Yellow N/A
PLC-440 N/A .112-40 (#4-40) N/A .234 in N/A .233 in N/A .215 in N/A .130 in N/A Passivated and/or tested per ASTM A380 N/A N/A
PLC-632 N/A .138-32 (#6-32) N/A .265 in N/A .264 in N/A .246 in N/A .130 in N/A Passivated and/or tested per ASTM A380 N/A N/A
PLC-832 N/A .164-32 (#8-32) N/A .297 in N/A .296 in N/A .278 in N/A .155 in N/A Passivated and/or tested per ASTM A380 N/A N/A
PLC-032 N/A .190-32 (#10-32) N/A .312 in N/A .311 in N/A .293 in N/A .165 in N/A Passivated and/or tested per ASTM A380 N/A N/A
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