24 products

PL Series Precision Locknuts – Left-Hand Threads

The PL series is the left-hand-thread precision locknut — the same ground, square-faced construction as the PN series, cut left-hand for shafts whose rotation would loosen a right-hand nut. It locks with the same PW series precision lockwasher.

PL Series Specifications

  • Part numbers: PL-00 through PL-24 (24 sizes stocked)
  • Bore / shaft size: 0.391 in to 4.716 in
  • Outside diameter: 0.75 in to 6.125 in
  • Material & temperature: Carbon steel, black oxide finish; 300°F maximum operating temperature
  • Standards: ANSI/ABMA 8.2-1999; made in USA, RoHS compliant

Applications

Counter-rotating precision spindles, double-ended grinding and turning machines, and balanced twin-drive assemblies.

Related Whittet-Higgins Series

Apollo is an authorized Whittet-Higgins distributor. Every part on this page is genuine Whittet-Higgins, manufactured in the USA. Need a size that is not listed, or help matching a locknut to its lockwasher and assembly socket? Contact our team.
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $209.99
    $209.99
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $186.02
    $186.02
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $161.86
    $161.86
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $135.37
    $135.37
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $120.75
    $120.75
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $101.85
    $101.85
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $87.44
    $87.44
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $76.12
    $76.12
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $69.16
    $69.16
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $49.76
    $49.76
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $44.31
    $44.31
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $39.63
    $39.63
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $33.72
    $33.72
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $26.20
    $26.20
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $23.15
    $23.15
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $19.89
    $19.89
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $14.64
    $14.64
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $15.57
    $15.57
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $15.12
    $15.12
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $12.71
    $12.71
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $14.18
    $14.18
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $11.90
    $11.90
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $11.28
    $11.28
  • Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD Whittet-Higgins PL-18 Precision Locknut – 3.527-12 thread, 4.656in OD
    $10.87
    $10.87