HEICO-LOCK® Wedge Lock Washers

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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Material

External Diameter (mm)

Inside Diamter (mm)

Item #	Material	M	External Diameter	UNC	Inside Diamter	Box QTY (Pairs)

HLB-1/2“S	N/A Stainless Steel	N/A 1/2 max	N/A 25.4 mm	N/A	N/A 13.5 mm	N/A 100
HLB-1/4“S	N/A Stainless Steel	N/A 1/4 max	N/A 13.5 mm	N/A	N/A 7.2 mm	N/A 200
HLB-1“S	N/A Stainless Steel	N/A 1 max	N/A 48.5 mm	N/A	N/A 27.9 mm	N/A 50
HLB-10S	N/A Stainless Steel	N/A 10 max	N/A 21 mm	N/A	N/A 10.7 mm	N/A 200
HLB-12S	N/A Stainless Steel	N/A 12 max	N/A 25.4 mm	N/A	N/A 13 mm	N/A 100
HLB-14S	N/A Stainless Steel	N/A 14 max	N/A 30.7 mm	N/A 9/16“	N/A 15.2 mm	N/A 100
HLB-16S	N/A Stainless Steel	N/A 16 max	N/A 30.7 mm	N/A 5/8“	N/A 17 mm	N/A 100
HLB-18S	N/A Stainless Steel	N/A 18 max	N/A 34.5 mm	N/A	N/A 19.5 mm	N/A 100
HLB-20S	N/A Stainless Steel	N/A 20 max	N/A 39 mm	N/A	N/A 21.4 mm	N/A 100
HLB-22S	N/A Stainless Steel	N/A 22 max	N/A 42 mm	N/A 7/8“	N/A 23.4 mm	N/A 50
HLB-24S	N/A Stainless Steel	N/A 24 max	N/A 48.5 mm	N/A	N/A 25.3 mm	N/A 50
HLB-27S	N/A Stainless Steel	N/A 27 max	N/A 48.5 mm	N/A	N/A 28.4 mm	N/A 25
HLB-3.5S	N/A Stainless Steel	N/A 3.5 max	N/A 9 mm	N/A #6	N/A 3.9 mm	N/A 200
HLB-3/4“S	N/A Stainless Steel	N/A 3/4 max	N/A 39 mm	N/A	N/A 20 mm	N/A 100
HLB-3/8“S	N/A Stainless Steel	N/A 3/8 max	N/A 21 mm	N/A	N/A 10.3 mm	N/A 200
HLB-30S	N/A Stainless Steel	N/A 30 max	N/A 58.5 mm	N/A 1 1/8“	N/A 31.4 mm	N/A 25
HLB-33S	N/A Stainless Steel	N/A 33 max	N/A 58.5 mm	N/A 1 1/4“	N/A 34.4 mm	N/A 25
HLB-36S	N/A Stainless Steel	N/A 36 max	N/A 63 mm	N/A 1 3/8“	N/A 37.4 mm	N/A 25
HLB-39S	N/A Stainless Steel	N/A 39 max	N/A 75.5 mm	N/A 1 1/2“	N/A 40.4 mm	N/A 25
HLB-4S	N/A Stainless Steel	N/A 4 max	N/A 9 mm	N/A #8	N/A 4.4 mm	N/A 200
HLB-5S	N/A Stainless Steel	N/A 5 max	N/A 10.8 mm	N/A #10	N/A 5.4 mm	N/A 200
HLB-6S	N/A Stainless Steel	N/A 6 max	N/A 13.5 mm	N/A	N/A 6.5 mm	N/A 200
HLB-8S	N/A Stainless 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“S	N/A Stainless Steel	N/A 1/2 max	N/A 19.5 mm	N/A	N/A 13.5 mm	N/A 200
HLS-1/4“S	N/A Stainless Steel	N/A 1/4 max	N/A 11.5 mm	N/A	N/A 7.2 mm	N/A 200

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Material

External Diameter (mm)

Inside Diamter (mm)

Item #

Material

M

External Diameter

UNC

Inside Diamter

Box QTY (Pairs)