
Description:
LOCTITE 638 - universally applicable joining adhesive
LOCTITE's 638 adhesive is suitable for securing shaft hub joints, especially cylindrical joint parts with narrow bond gaps approaching 0.25 mm. For secure connections, the metal adhesive is high-strength and dries quickly in the absence of air between close-fitting metal surfaces: This prevents joints from coming loose on their own or leaks from vibration or impact. The heat resistant adhesive can be used for both active metals and passive ones such as stainless steel. As a universal adhesive, the metal adhesive is heat resistant (-55°C to +180°C) and tolerates contact with various oils, ideal for gearboxes or engines.
To use, clean all surfaces with LOCTITE SF 7063 cleaner. Curing of the screw adhesive can be accelerated with LOCTITE SF7649 activator. For sliding fits, apply the adhesive in a ring on the outside of the front edge of the shaft and on the inside of the hub and rotate parts against each other when joining. For press fits, apply the adhesive evenly to both joining surfaces and join parts quickly. For shrink fits, apply the adhesive as an even, continuous layer. If the hub is heated for assembly, the adhesive must be applied to the shaft. If the shaft is cooled for assembly, the hub should be coated. When heating and cooling at the same time, the adhesive must be applied to the cooled part. Avoid condensation on the cooled parts. Do not move the parts until hand strength is achieved.
The Product Benefits at a Glance:
- For bonding cylindrical parts to be joined
- Universally applicable and fast curing
- For active metals and passive materials
- Based on acrylate
- Colour: Green
- Format: 50ml
Details:
Visit the Loctite Store
LOCTITE 638, High Strength Adhesive for securing cylindrical parts to shafts, Anaerobic and Temperature Resistant Liquid Glue for Gearboxes, 50ml
Imported From: United Kingdom
At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.
Every product in the BOLO catalogue is sourced through our Verified Global Supply Network of verified sellers, authorized distributors or directly from the manufacturer.
Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.
If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.
Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.
While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.
Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.
BOLO operates in accordance with the laws and regulations of Qatar. Any items found to be restricted or prohibited for sale within the Qatar will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in Qatar are listed on our website.
All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.
All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.
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Visit the Loctite Store
LOCTITE 638, High Strength Adhesive for securing cylindrical parts to shafts, Anaerobic and Temperature Resistant Liquid Glue for Gearboxes, 50ml

Imported From: United Kingdom
At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.
Every product in the BOLO catalogue is sourced through our Verified Global Supply Network of verified sellers, authorized distributors or directly from the manufacturer.
Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.
If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.
Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.
While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.
Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.
BOLO operates in accordance with the laws and regulations of Qatar. Any items found to be restricted or prohibited for sale within the Qatar will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in Qatar are listed on our website.
All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.
All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.
Description:
LOCTITE 638 - universally applicable joining adhesive
LOCTITE's 638 adhesive is suitable for securing shaft hub joints, especially cylindrical joint parts with narrow bond gaps approaching 0.25 mm. For secure connections, the metal adhesive is high-strength and dries quickly in the absence of air between close-fitting metal surfaces: This prevents joints from coming loose on their own or leaks from vibration or impact. The heat resistant adhesive can be used for both active metals and passive ones such as stainless steel. As a universal adhesive, the metal adhesive is heat resistant (-55°C to +180°C) and tolerates contact with various oils, ideal for gearboxes or engines.
To use, clean all surfaces with LOCTITE SF 7063 cleaner. Curing of the screw adhesive can be accelerated with LOCTITE SF7649 activator. For sliding fits, apply the adhesive in a ring on the outside of the front edge of the shaft and on the inside of the hub and rotate parts against each other when joining. For press fits, apply the adhesive evenly to both joining surfaces and join parts quickly. For shrink fits, apply the adhesive as an even, continuous layer. If the hub is heated for assembly, the adhesive must be applied to the shaft. If the shaft is cooled for assembly, the hub should be coated. When heating and cooling at the same time, the adhesive must be applied to the cooled part. Avoid condensation on the cooled parts. Do not move the parts until hand strength is achieved.
The Product Benefits at a Glance:
- For bonding cylindrical parts to be joined
- Universally applicable and fast curing
- For active metals and passive materials
- Based on acrylate
- Colour: Green
- Format: 50ml
Details:
Similar suggestions by Bolo
Share with
Or share with link
https://www.bolo.qa/products/KO00AH1IA48