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Lock washer Product List

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Thanks to you, HEICO in Germany is celebrating its 120th anniversary.

Thanks to you, HEICO in Germany is celebrating its 120th anniversary.

We make continuous improvement of production processes and equipment our fundamental principle, and we never neglect our efforts to enhance innovation for quality improvement.

HEICO, a German company, celebrated its 120th anniversary in 2020 since its founding in 1900. This achievement is solely thanks to the long-standing support of all of you, for which we are truly grateful. In our company, we actively develop and manufacture our own unique tools and processing machines, implement in-house heat treatment and surface processing, and introduce process control systems to improve product quality and production efficiency. We will continue to aim for the development of products that realize "reliable, safe, and easy fastening," responding to our customers' needs based on the extensive know-how cultivated from our many years of experience and achievements.

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For secure, reliable, and easy fastening, use Hi-Lock Wedge Lock Washers.

For secure, reliable, and easy fastening, use Hi-Lock Wedge Lock Washers.

Reliable, safe, and easy HEICO-LOCK® standard type.

HEICO-LOCK(R) wedge lock washers protect bolts from rotational loosening not through friction, but by using 'axial force (preload).' Born in Germany, HEICO-LOCK(R) provides high anti-loosening performance and reliability even under intense vibrations and dynamic loads. The anti-loosening effect of the HEICO-LOCK(R) series has been verified through vibration tests in accordance with international standards: - German Industrial Standards (DIN 65151, DIN 25201-4) - U.S. Aerospace Standards (NASM 1312-7) 【Features】 ■ The inner surface of the washer has a wedge-shaped cam surface, while the outer surface has radial teeth. ■ The radial teeth on the outer surface of the washer firmly spike into the bolt/nut and the joined material. ■ The movement of the system occurs only between the wedge-shaped cam surfaces on the inside of the washer. ■ Movement at the wedge-shaped cam surfaces effectively increases the axial force of the bolt. ■ It provides reliable fastening strength under dynamic loads. *Please feel free to contact us for more details.

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  • bolt
  • nut

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HEICO-LOCK® High Lock Ring Lock Washer

HEICO-LOCK® High Lock Ring Lock Washer

The blue resin ring makes it easy to inspect bolts in high or distant locations.

Adding functions to the reliable, safe, and easy-to-use HEICO-LOCK fastening system. HEICO-LOCK protects bolts from rotational loosening not by friction, but by 'axial force (preload).' The HEICO-LOCK(R) ring lock washer features an outer blue ring that makes inspection easy even in high or remote locations. 【Features】 ◆ The outer resin ring of the washer always keeps the two washers in precise alignment. ◆ The blue resin ring allows for easy inspection of bolts in high or remote locations. ◆ Compatible with various types of bolts available in the market. ◆ The outer resin ring of the washer always keeps the two washers in precise alignment. ◆ The resin ring prevents the washers from coming apart during reuse. ◆ Improves workability, contributing to reduced working time and minimized errors. The anti-loosening effect of HEICO-LOCK(R) has been proven through vibration tests in accordance with international standards. - German Industrial Standards (DIN65151, DIN25201-4) - U.S. Aerospace Standards (NASM1312-7) * Please feel free to contact us if you have any questions. * Samples can be provided if you specify the size and material.

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  • bolt
  • nut

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