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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
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Unit of Measure
1 2 3 4 5 

Item #

Material

M

External Diameter

UNC

Inside Diamter

Box QTY (Pairs)

Quantity
HLS-36 N/A Steel N/A 36 max N/A 55 mm N/A 1 3/8“ N/A 37.4 mm N/A 25
HLS-39 N/A Steel N/A 39 max N/A 58.5 mm N/A 1 1/2“ N/A 40.4 mm N/A 25
HLS-4 N/A Steel N/A 4 max N/A 7.6 mm N/A #8 N/A 4.4 mm N/A 200
HLS-42 N/A Steel N/A 42 max N/A 63 mm N/A N/A 43.2 mm N/A 25
HLS-45 N/A Steel N/A 45 max N/A 70 mm N/A 1 3/4“ N/A 46.2 mm N/A 25
HLS-48 N/A Steel N/A 48 max N/A 75 mm N/A N/A 49.6 mm N/A 25
HLS-5 N/A Steel N/A 5 max N/A 9 mm N/A #10 N/A 5.4 mm N/A 200
HLS-52 N/A Steel N/A 52 max N/A 80 mm N/A 2“ N/A 53.6 mm N/A 1
HLS-56 N/A Steel N/A 56 max N/A 85 mm N/A 2 1/4“ N/A 59.1 mm N/A 1
HLS-6 N/A Steel N/A 6 max N/A 10.8 mm N/A N/A 6.5 mm N/A 200
HLS-60 N/A Steel N/A 60 max N/A 90 mm N/A N/A 63.1 mm N/A 1
HLS-64 N/A Steel N/A 64 max N/A 95 mm N/A 2 1/2“ N/A 67.1 mm N/A 1
HLS-68 N/A Steel N/A 68 max N/A 100 mm N/A N/A 71.1 mm N/A 1
HLS-72 N/A Steel N/A 72 max N/A 105 mm N/A N/A 75.1 mm N/A 1
HLS-76 N/A Steel N/A 76 max N/A 110 mm N/A 3“ N/A 79.1 mm N/A 1
HLS-8 N/A Steel N/A 8 max N/A 13.5 mm N/A 5/16“ N/A 8.6 mm N/A 200
Unit of Measure
1 2 3 4 5