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The Ultimate High-Performance Anti-Vibration Locking Washer.

HEICO-LOCK washers are wedge locking washers that positively lock fasteners using tension instead of friction, safely locking bolted joints in critical applications with exceptional resistance to vibration loosening and dynamic loads.
The 'Heico-Lock' System consists of a pre-assembled pair of washers that have inclined clams on the inside and radial teeth/ridges on the opposite sides.

Tightening of the bolt and/or nut leads to a gripping action of the teeth thus seating the surfaces. Tightening locks the 'Heico-Lock' locking washers in place. Movement is only possible across the face of the cams. Working together, both sides of the locking washers combine into a fastening system that prevents loosening of joints by shock and vibration.
These superior locking washers are available in steel and stainless steel in both standard and broad outside diameter configerations with sizes ranging from M3 to M42.
'Heico-Lock' locking washers secure you real benefits!
Click on the following links for further details on these quality locking washers:
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M3 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £0.74 (including 20 % tax)
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M3.5 Steel Std OD Heico Lock- Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £0.74 (including 20 % tax)
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M5 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £0.76 (including 20 % tax)
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M6 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £0.80 (including 20 % tax)
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M8 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £0.91 (including 20 % tax)
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M10 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £0.97 (including 20 % tax)
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M11 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £1.54 (including 20 % tax)
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M12 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £1.67 (including 20 % tax)
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M14 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £2.35 (including 20 % tax)
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M16 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £2.44 (including 20 % tax)
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M20 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £3.82 (including 20 % tax)
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M22 Steel Std OD Heico Lock-Lockind Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £4.88 (including 20 % tax)
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M24 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £5.21 (including 20 % tax)
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M33 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £10.87 (including 20 % tax)
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M42 Steel Std OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £15.72 (including 20 % tax)
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M4 Steel (Large) OD Heico Lock-Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £0.80 (including 20 % tax)
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M5 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £0.85 (including 20 % tax)
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M6 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £0.98 (including 20 % tax)
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M8 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £1.08 (including 20 % tax)
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M10 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £1.68 (including 20 % tax)
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M12 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £2.50 (including 20 % tax)
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M14 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £3.20 (including 20 % tax)
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M16 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £3.61 (including 20 % tax)
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M18 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £5.53 (including 20 % tax)
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M20 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £7.93 (including 20 % tax)
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M22 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £9.00 (including 20 % tax)
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M24 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £10.00 (including 20 % tax)
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M27 Steel Large OD Heico Lock - Locking Washer Steel anti-vibration locking washer. ‘Heico-Lock' positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place. [Product Details...] £10.54 (including 20 % tax)
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M6 S.Steel Std OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £2.21 (including 20 % tax)
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M8 S.Steel Std OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £2.51 (including 20 % tax)
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M10 S.Steel Std OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £2.86 (including 20 % tax)
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M11 S.Steel Std OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £4.02 (including 20 % tax)
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M14 S.Steel Std OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £7.74 (including 20 % tax)
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M16 S.Steel Std OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £8.35 (including 20 % tax)
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M18 S.Steel Std OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £11.08 (including 20 % tax)
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M20 S.Steel Std OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £11.84 (including 20 % tax)
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M24 S.Steel Std OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £15.54 (including 20 % tax)
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M30 S.Steel Std OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £31.50 (including 20 % tax)
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M4 S.Steel Large OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £2.28 (including 20 % tax)
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M5 S.Steel Large OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £2.35 (including 20 % tax)
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M6 S.Steel Large OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £2.57 (including 20 % tax)
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M8 S.Steel Large OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £3.28 (including 20 % tax)
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M12 S.Steel Large OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £7.92 (including 20 % tax)
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M14 S.Steel Large OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £8.51 (including 20 % tax)
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M18 S.Steel Large OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £15.84 (including 20 % tax)
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M24 S.Steel Large OD Heico Lock-Locking Washer Stainless Steel anti-vibration locking washer. ‘Heico-Lock’ positively locks bolted joints using tension instead of friction. Inclined cams on the inside of each washer and radial teeth on the opposite side work together to securely lock the bolt in place [Product Details...] £39.60 (including 20 % tax)
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