Is WEICON Screw Protection AN302-60 – Reliable Fastener Safeguard suitable for threads larger than M20 or R3/4"?

WEICON Screw Protection AN302-60 – Reliable Fastener Safeguard Format is specified as suitable for threads up to M20 or R3/4". Based on the product description, it is not recommended for threads larger than M20/R3/4". The adhesive’s performance (breakaway torque 30–35 Nm, curing times, temperature range and high-viscosity, permanent bond) is engineered for fasteners up to that size; using it on larger threads would likely provide insufficient locking torque and unreliable results. For threads above M20/R3/4" choose a higher-strength or specifically rated threadlocker formulated for larger-diameter fasteners.

Can WEICON Screw Protection AN302-60 – Reliable Fastener Safeguard be used on dissimilar metal threads without causing galvanic corrosion?

WEICON Screw Protection AN302-60 – Reliable Fastener Safeguard can generally be used on dissimilar metal threads, but caution is required to minimize the risk of galvanic corrosion. The product is an anaerobic adhesive that cures to form a polymer layer between mating metal surfaces, which helps isolate metals and reduce direct metal-to-metal contact — a key factor in preventing galvanic coupling. Its high viscosity and permanent bond also limit electrolyte ingress and movement that accelerate corrosion. However, several practical points matter: - Surface preparation: clean, dry, and oil-free threads improve adhesive coverage and sealing; contaminants or incomplete coverage can leave exposed metal areas where galvanic action may occur. - Environment: in wet, salty, or highly corrosive environments, the risk of galvanic corrosion increases; additional corrosion protection (sealants, coatings, or sacrificial anodes) may be advisable. - Dissimilar metal pairing: large potential differences (e.g., aluminum vs. stainless steel or copper) raise risk; when possible choose compatible materials or add protective measures. - Long-term inspection: because the adhesive creates a hard, permanent bond, periodic checks or added corrosion protection are recommended for critical assemblies. Conclusion: WEICON Screw Protection AN302-60 – Reliable Fastener Safeguard helps reduce galvanic corrosion by isolating threads, but it does not guarantee immunity in harsh environments or with highly dissimilar metals. For best results, ensure thorough surface prep and consider supplemental corrosion protection when risk is high.

WEICON Screw Protection AN302-60 – Reliable Fastener Safeguard

Adhesives and screw protections, All products/

Additional information

This high-viscosity anaerobic adhesive in a convenient pen-type container is designed for maximum reliability when securing threaded connections, effectively preventing screws from loosening even under extreme conditions. Its powerful green formula ensures a permanent bond that is exceptionally resistant to vibration and mechanical stress, making disassembly extremely difficult once cured. Suitable for threads up to M20 or R3/4″, it delivers outstanding performance across a wide temperature range from -60°C to +180°C. With a breakaway torque of 30–35 Nm, it provides robust locking strength, while its fast-curing properties allow initial fixation within just 2–5 minutes, depending on the material, and full strength after 2–4 hours. Engineered for demanding applications, this adhesive offers a professional solution for industries where durability, safety, and long-term stability are essential.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Price	Quantity	Actions	Catalogue
WE-AN30-260-P-050	Screw locking compound AN30260 (pen 50 ml)	-	-	In stock	0 €		Enquiry

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This high-viscosity anaerobic adhesive in a convenient pen-type container is designed for maximum reliability when securing threaded connections, effectively preventing screws from loosening even under extreme conditions. Its powerful green formula ensures a permanent bond that is exceptionally resistant to vibration and mechanical stress, making disassembly extremely difficult once cured. Suitable for threads up to M20 or R3/4″, it delivers outstanding performance across a wide temperature range from -60°C to +180°C. With a breakaway torque of 30–35 Nm, it provides robust locking strength, while its fast-curing properties allow initial fixation within just 2–5 minutes, depending on the material, and full strength after 2–4 hours. Engineered for demanding applications, this adhesive offers a professional solution for industries where durability, safety, and long-term stability are essential.