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The HEICO-LOCK® High Lock Series is a German-made locking washer that has been proven to prevent loosening through vibration tests compliant with international standards. Simply fit it onto your standard bolts to add "looseness prevention effect"! You can easily use standard bolts as "Wedge Lock" bolts. 【Proven Loosening Prevention Performance】 - German Industrial Standards (DIN65151, DIN25201-4) - U.S. Aerospace Standards (NASM1312-7) 【Product Features of High Lock Combination Washer】 ■ Developed by a long-established German manufacturer with over 120 years of history ■ The structure includes a resin ring inside the washer, with loosening prevention performance proven to meet DIN standards ■ Added function to prevent falling off from the bolt (NEW!) ■ Patent granted ⇒ Not only does it ensure ease of use, but it also balances reliability in preventing loosening and peace of mind with the falling-off prevention feature. If you are troubled by "loosening" of bolts, please consider HEICO. *If you would like a sample, please contact us via [Contact Us] with your size and application information. *You can check product details in the materials available for [PDF Download].

• nut
• bolt
• fastener

For reliable, safe, and easy fastening, choose "HEICO-LOCK(R)". HEICO, a fastening manufacturer founded in 1900 in Germany, develops, manufactures, and sells the HEICO-LOCK. The HEICO-LOCK protects bolts from rotational loosening not through friction, but by utilizing 'axial force (preload)'. 【Features】 ◆ A trusted anti-loosening solution that utilizes the bolt's axial force (preload) ◆ Anti-loosening performance proven through international standard tests - German Industrial Standards (DIN65151, DIN25201-4) - U.S. Aerospace Standards (NASM1312-7) ◆ Prevents rotational loosening even under severe vibrations and dynamic loads ◆ Usable in fastening locations that require lubricants ◆ Reusable (depending on usage conditions) ◆ Compatible with high-strength bolts (8.8, 10.9, 12.9, A2-70, A4-80, etc.) ◆ Can be combined with various bolts available in the market ◆ Easy tightening work due to its washer design ◆ Provided in pairs (two pieces) in advance *Please feel free to contact us if you have any questions. *Samples can be provided if you specify size and material.

• Other machine elements
• bolt
• nut

Integrated flange nut and "HEICO-LOCK(R) wedge lock washer" Eliminates the worry of dropping washers during work, significantly improving work efficiency. The HEICO-LOCK(R) series nut products pursue reliable, safe, and easy fastening. By reducing the number of parts, they contribute to shorter work times and reduce the risk of misuse and work errors. Even during reuse, the individual parts do not come apart. The anti-loosening effect of the HEICO-LOCK(R) series has been proven through vibration tests in accordance with international standards. - German Industrial Standards (DIN65151, DIN25201-4) - U.S. Aerospace Standards (NASM1312-7) 【Features】 ◆ Integrated design with flange nut reduces the risk of misuse ◆ Easy, safe, and quick work even for non-skilled workers ◆ No worry of dropping washers in hard-to-reach places, providing peace of mind ◆ Reduces the number of parts, contributing to shorter work times and fewer work errors ◆ Individual parts do not come apart during reuse * Please feel free to contact us if you have any questions. * Samples can be provided if you specify the size and material.

• nut
• Other machine elements
• bolt

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.

• Other machine elements
• bolt
• nut

HEICO-LOCK(R) pursues reliable, safe, and easy fastening Transform your existing bolts or standard bolts into "anti-loosening" bolts In addition to the anti-loosening performance of HEICO-LOCK(R), a function to prevent bolts from falling off has been added. You can work quickly and easily without worrying about washers falling off during operation. 【Features】 ◆ Special rings made from soft resin, also used in seal rings ◆ The "tabs" of the resin ring catch onto the threads to prevent bolts from falling off ◆ Compatible with various types of bolts available in the market ◆ The resin ring always holds the two washers in precise alignment ◆ Washers do not come apart due to the resin ring during reuse ◆ Reduces stress during work without worrying about washers falling off 【Proven anti-loosening performance】 The anti-loosening effect of HEICO-LOCK(R) has been verified 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.

• Other machine elements
• bolt
• nut

HEICO-LOCK(R) pursues reliable, safe, and easy fastening Transform your existing bolts or standard bolts into "anti-loosening" bolts The anti-loosening performance of HEICO-LOCK(R) is enhanced with a feature that prevents bolts from falling off. You can work quickly and easily without worrying about washers falling off during operation. 【Features】 ◆ Special rings made from soft resin, also used in seal rings ◆ The "tabs" of the resin ring catch on the threads to prevent bolts from falling off ◆ Compatible with various types of bolts available in the market ◆ The resin ring always keeps two washers in precise alignment ◆ Washers do not come apart due to the resin ring even when reused ◆ Reduces stress during work by eliminating concerns about washer loss 【Proven anti-loosening performance】 The anti-loosening effect of HEICO-LOCK(R) has been verified 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.

• Other machine elements
• bolt
• nut

The "HEICO-LOCK(R) Wedge Locking System" protects 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 severe vibrations and dynamic loads. The anti-loosening effect of the HEICO-LOCK(R) series has been proven 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 side has a radial tooth surface. ◆ The radial tooth surface on the outer side of the washer firmly spikes into the underside of the bolt/nut and the joined base material when the bolt is tightened. ◆ The movement of the system occurs only between the inner wedge-shaped cam surfaces. ◆ The movement at the wedge-shaped cam surfaces effectively increases the axial force of the bolt. ◆ It provides reliable fastening strength under dynamic loads. *For more details, please download the PDF or contact us.

• Other machine elements
• bolt
• nut

Upgrade your existing bolts to "Wedge Lock" bolts. A new product from HEICO-LOCK(R) that pursues reliable, safe, and easy fastening. In addition to the anti-loosening performance of HEICO-LOCK(R) wedge lock washers, a function to prevent bolt drop has been added. You can use it in combination with bolts you already have or standard bolts along with HEICO-LOCK(R) combination washers. 【Features】 ■ Special rings made from soft resin, commonly used for seal rings ■ The "tab" of the resin ring catches on the threads to prevent bolt drop ■ Compatible with various types of bolts available in the market ■ The resin ring inside the washer keeps the two washers accurately aligned ■ The resin ring prevents the washers from coming apart during reuse ■ Reduces stress during work without worrying about washer drop If you provide information about the size and application, we can also provide samples. If you are interested, please contact us through the "Contact Us" section. *For more details, please refer to the PDF document or feel free to contact us.

• nut
• bolt

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.

• Other machine elements
• bolt
• nut

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.

• Other machine elements

The "HEICO-LOCK(R) Wedge Locking System" protects 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 proven 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 side has a radial tooth surface. ■ The radial tooth surface on the outer side of the washer firmly spikes into the underside of the bolt/nut and the material being fastened when the bolt is tightened. ■ The movement of the system occurs only between the wedge-shaped cam surfaces on the inner side of the washer. ■ The movement at the wedge-shaped cam surface effectively increases the axial force of the bolt. ■ It provides reliable fastening strength under dynamic loads. *For more details, please download the PDF or contact us.

• Other machine elements
• bolt
• nut

Reliable, safe, and easy-to-use HEICO-LOCK(R) locking device An explanation of the principles supporting this locking device. 1. Hardness difference: H (HEICO) > H (material) The surface hardness of the washer is harder than that of the general fastening material and nut/bolt, and it firmly spikes into the surface of the fastening material and bolt/nut. 2. Friction difference: μ (a) > μ (i) Friction coefficient of the wedge-shaped cam surface on the inside of the washer: μ (i) Friction coefficient of the radial tooth surface on the outside of the washer: μ (a) 3. Angle difference: α > β Angle of the cam surface on the inside of HEICO-LOCK(R): α Lead angle of the screw: β 4. Axial force (preload) difference: F (dyn) > F (stat) Dynamic axial force (dyn) in an environment where a load in the loosening direction occurs Static axial force (stat) during tightening The locking effect of the HEICO-LOCK(R) series has been demonstrated through vibration tests in accordance with international standards. - German Industrial Standards (DIN 65151, DIN 25201-4) - U.S. Aerospace Standards (NASM 1312-7)

• Other machine elements
• bolt
• nut