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Ships within 48 hours · Estimated delivery Jun 15 - Jun 20
For Your Every Summer RSVP, with Code: SUMMER15
Description
Loctite 661 High Strength Low Viscosity UV-Curing Retainer 250mlLOCTITE 661 is an amber, anaerobic, low viscosity, high strength methacrylate retaining compound that also cures in the presence of UV light. It's therefore ideal for applications where any migration of the adhesive from the joint must be prevented. Fixture time on steel is 4 min and maximum diametrical clearance is 0. 15mm. Your Benefits 1 part product, requires no mixing Dual cure anaerobic and UV light High strength Low viscosity, small gap filling

Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 1182 reviews
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Product Reviews
★★★★★ 5
Fits well, sane quality as the oem installed
Works really well, it fits and matches the original spark plugs and very easy to install. Very affordable! It starts right up , quality is very good and didn't have to adjust the gap on spark plugs!
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Reviewed in the United States on July 5, 2025
★★★★★ 5
Fresh Spark Plug for the Mowing Season
Just what my push mower needed! Very compatible with my Craftsman M220 push mower. It was the right replacement part and workings just like the original brand B&S plug. Gap was correct right out of the box as my push mower fired right up first pull. Would recommend for anybody with a Craftsman M220.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Good spark
Good fit. Fired right up
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Good deal on spark plugs
They worked perfectly for me
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Better running mower
Seems to work fine and runs great
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Reviewed in the United States on May 15, 2026




