LCN Roller Lock Screw: Aluminum (MPN 4040SE-425)
The LCN Roller Lock Screw (MPN 4040SE-425) is an aluminum accessory for door closers, compatible with the 4040SE series. 3G Electric interprets this demand and sources the genuine OEM part, providing a single point…
SKU 3G-OTH-506781
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Product Description
The LCN Roller Lock Screw (MPN 4040SE-425) is an aluminum accessory for door closers, compatible with the 4040SE series. 3G Electric interprets this demand and sources the genuine OEM part, providing a single point of accountability across 14 industrial departments — with specialist depth in combustion, pumps and controls as a trust anchor.
Frequently Asked Questions
What is the LCN Roller Lock Screw 4040SE-425 used for?
The LCN Roller Lock Screw 4040SE-425 is an aluminum accessory for door closers in the 4040SE series. It secures the roller arm assembly, ensuring consistent door-closing force and alignment in commercial and industrial door applications.
What are the specifications of the LCN 4040SE-425 Roller Lock Screw?
The LCN 4040SE-425 Roller Lock Screw is an aluminum accessory compatible with the 4040SE series door closers. Its manufacturer part number is 4040SE-425. It is a genuine OEM part designed for secure roller arm retention.
Where to buy the LCN 4040SE-425 Roller Lock Screw worldwide?
3G Electric supplies the genuine LCN 4040SE-425 Roller Lock Screw worldwide. We handle full logistics, customs clearance, and delivery to your site. As a single-point sourcing partner across 14 industrial departments, we provide the right part with accountability.
How to install the LCN 4040SE-425 Roller Lock Screw?
To install the LCN 4040SE-425 Roller Lock Screw, first remove the existing screw from the door closer roller arm. Align the new aluminum screw with the threaded hole and tighten securely using a standard screwdriver. Verify smooth roller movement after installation.
Used in
Common applications for LCNLCN Products
3G Electric supplies LCN accessories for door closers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









