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The self-loosening of bolted joints is one of the most commonly occuring failure modes in the operation of machines and systems. HEICO-LOCK® Wedge Lock Washers prevent loosening of the bolted joint by providing a safe and reliable bolt securing system - even for extremes of vibration or dynamic loads.

Features:

  • Certified system for securing bolts, working at low and high preload levels
  • Particularly suitable for dynamic loads – including when using lubricants
  • Very easy to install and remove (Wedge Lock Washers are supplied as a pre-assembled pair)
  • Can be re-used
  • Also suitable for high-tensile bolts of 8.8, 10.9 and 12.9 and their respective nuts
  • Available in steel or stainless steel with narrow or wide bearing surfaces – other materials are available upon request
  • Available from M3 – M76 and ¼” – 3” - custom sizes upon request
heico-wedge-lock-washer
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Unit of Measure
1 2 3 4 5 

Item #

Material

M

External Diameter

UNC

Inside Diamter

Box QTY (Pairs)

Quantity
HLB-36 N/A Steel N/A 36 max N/A 63 mm N/A 1 3/8“ N/A 37.4 mm N/A 25
HLB-39 N/A Steel N/A 39 max N/A 75.5 mm N/A 1 1/2“ N/A 40.4 mm N/A 25
HLB-4 N/A Steel N/A 4 max N/A 9 mm N/A #8 N/A 4.4 mm N/A 200
HLB-5 N/A Steel N/A 5 max N/A 10.8 mm N/A #10 N/A 5.4 mm N/A 200
HLB-6 N/A Steel N/A 6 max N/A 13.5 mm N/A N/A 6.5 mm N/A 200
HLB-8 N/A Steel N/A 8 max N/A 16.6 mm N/A 5/16“ N/A 8.6 mm N/A 200
HLS-1/2“ N/A Steel N/A 1/2 max N/A 19.5 mm N/A N/A 13.5 mm N/A 200
HLS-1/4“ N/A Steel N/A 1/4 max N/A 11.5 mm N/A N/A 7.2 mm N/A 200
HLS-1“ N/A Steel N/A 1 max N/A 39 mm N/A N/A 27.9 mm N/A 100
HLS-10 N/A Steel N/A 10 max N/A 16.6 mm N/A N/A 10.7 mm N/A 200
HLS-11 N/A Steel N/A 11 max N/A 18.5 mm N/A 7/16“ N/A 11.4 mm N/A 200
HLS-12 N/A Steel N/A 12 max N/A 19.5 mm N/A N/A 13 mm N/A 200
HLS-14 N/A Steel N/A 14 max N/A 23 mm N/A 9/16“ N/A 15.2 mm N/A 100
HLS-16 N/A Steel N/A 16 max N/A 25.4 mm N/A 5/8“ N/A 17 mm N/A 100
HLS-18 N/A Steel N/A 18 max N/A 29 mm N/A N/A 19.5 mm N/A 100
HLS-20 N/A Steel N/A 20 max N/A 30.7 mm N/A N/A 21.4 mm N/A 100
HLS-22 N/A Steel N/A 22 max N/A 34.5 mm N/A 7/8“ N/A 23.4 mm N/A 100
HLS-24 N/A Steel N/A 24 max N/A 39 mm N/A N/A 25.3 mm N/A 100
HLS-27 N/A Steel N/A 27 max N/A 42 mm N/A N/A 28.4 mm N/A 50
HLS-3 N/A Steel N/A 3 max N/A 7 mm N/A #5 N/A 3.4 mm N/A 200
HLS-3.5 N/A Steel N/A 3.5 max N/A 7.6 mm N/A #6 N/A 3.9 mm N/A 200
HLS-3/4“ N/A Steel N/A 3/4 max N/A 30.7 mm N/A N/A 20 mm N/A 100
HLS-3/8“ N/A Steel N/A 3/8 max N/A 16 mm N/A N/A 10.3 mm N/A 200
HLS-30 N/A Steel N/A 30 max N/A 47 mm N/A 1 1/8“ N/A 31.4 mm N/A 50
HLS-33 N/A Steel N/A 33 max N/A 48.5 mm N/A 1 1/4“ N/A 34.4 mm N/A 25
Unit of Measure
1 2 3 4 5