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PRIME-LINE

PRIME-LINE is a North American manufacturer of replacement hardware and accessories for residential and light-commercial garage doors, as well as cabinet and sliding-door systems. The brand is widely recognized in the building maintenance and repair sector for producing functional components that match common OEM specifications, allowing straightforward retrofitting without requiring full door or cabinet replacement. 3G Electric stocks a selection of PRIME-LINE products, focusing on items that address frequent failure points in garage door mechanisms: locking handles, cables, slide locks, and stop balls. The product range includes keyed T-handles and L-handles with arm lengths suited to standard garage door lock assemblies, carbon-steel spring cables and extension cables rated for loads up to 2,155 lb, bolting-type slide locks with defined base dimensions, and rubber stop balls with retracting cords for material handling. These components are manufactured from carbon steel or rubber, with load ratings and dimensional specifications clearly stated to enable direct comparison with existing hardware. For plant engineers and maintenance managers, PRIME-LINE parts offer a predictable fit and performance profile, reducing downtime during repairs. 3G Electric supports this line by maintaining inventory of these 34 SKUs, providing logistics support for global shipment, and offering quoting for bulk or scheduled orders. The absence of proprietary fastening systems or non-standard hole patterns in these products simplifies installation, making them suitable for facilities that require consistent, repeatable replacement cycles. Procurement specialists can rely on the published specifications—such as overall length, base width, and load rating—to match PRIME-LINE components to existing door assemblies without custom fabrication. This catalog page covers the core PRIME-LINE product families available through 3G Electric, with emphasis on dimensional and material data that directly informs purchasing decisions.

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About PRIME-LINE

PRIME-LINE is a North American manufacturer of replacement hardware and accessories for residential and light-commercial garage doors, as well as cabinet and sliding-door systems. The brand is widely recognized in the building maintenance and repair sector for producing functional components that match common OEM specifications, allowing straightforward retrofitting without requiring full door or cabinet replacement. 3G Electric stocks a selection of PRIME-LINE products, focusing on items that address frequent failure points in garage door mechanisms: locking handles, cables, slide locks, and stop balls. The product range includes keyed T-handles and L-handles with arm lengths suited to standard garage door lock assemblies, carbon-steel spring cables and extension cables rated for loads up to 2,155 lb, bolting-type slide locks with defined base dimensions, and rubber stop balls with retracting cords for material handling. These components are manufactured from carbon steel or rubber, with load ratings and dimensional specifications clearly stated to enable direct comparison with existing hardware. For plant engineers and maintenance managers, PRIME-LINE parts offer a predictable fit and performance profile, reducing downtime during repairs. 3G Electric supports this line by maintaining inventory of these 34 SKUs, providing logistics support for global shipment, and offering quoting for bulk or scheduled orders. The absence of proprietary fastening systems or non-standard hole patterns in these products simplifies installation, making them suitable for facilities that require consistent, repeatable replacement cycles. Procurement specialists can rely on the published specifications—such as overall length, base width, and load rating—to match PRIME-LINE components to existing door assemblies without custom fabrication. This catalog page covers the core PRIME-LINE product families available through 3G Electric, with emphasis on dimensional and material data that directly informs purchasing decisions.

Common Applications

  • Residential garage door repair — PRIME-LINE keyed T-handles (GD 52169) for replacing broken lock handles on sectional doors.
  • Light-commercial door maintenance — PRIME-LINE spring cables (GD 52102) for torsion spring systems on warehouse overhead doors.
  • Sliding door security — PRIME-LINE slide locks (GD 52118) for bolting sliding garage doors in industrial storage facilities.
  • Garage door safety — PRIME-LINE stop balls (GD 52286) as travel limit stops on automatic door openers.
  • Extension spring door systems — PRIME-LINE extension cables (GD 52263) for replacing worn cables on residential garage doors.
  • Cabinet and locker hardware — PRIME-LINE keyed L-handles (GD 52123) for securing storage cabinets in maintenance shops.

Frequently asked questions

Common questions about PRIME-LINE from 3G Electric.

What load ratings are available for PRIME-LINE garage door cables?

PRIME-LINE spring cables and extension cables are rated for maximum loads of 2,155 lb and 1,385 lb respectively, as specified for the carbon steel models. These ratings apply to the cable assembly, not the door weight alone, and should be matched to the total door system weight including hardware. Always verify that the cable's load rating exceeds the door's operating weight by a safety margin per local codes.

Are PRIME-LINE T-handles and L-handles interchangeable with existing garage door lock mechanisms?

PRIME-LINE keyed T-handles (e.g., GD 52169) and L-handles (e.g., GD 52123) are designed as direct replacements for common residential garage door lock assemblies. The T-handle has a 4-inch arm length, and both types use standard keyed locking cylinders. Check the backset and hole pattern of your existing lock before ordering; these handles typically fit doors with a 7/8-inch to 1-inch thickness and standard 2-3/8-inch or 2-3/4-inch backset.

What is the difference between a PRIME-LINE spring cable and an extension cable?

PRIME-LINE spring cables (e.g., GD 52102) are designed for use with torsion spring systems, where the cable winds around a drum and is attached to the bottom bracket. Extension cables (e.g., GD 52263) are used with extension spring systems, running from the spring to the track or header. Both are made from carbon steel, but the spring cable has a higher load rating (2,155 lb) compared to the extension cable (1,385 lb). The overall length is 8 21/32 ft for both, supplied as a pair.

Can PRIME-LINE slide locks be used on sliding garage doors?

Yes, PRIME-LINE slide locks (e.g., GD 52118) are specifically designed for bolting onto sliding garage doors. The lock has an overall depth of 3 3/16 inches, a base length of 3 1/8 inches, and a base width of 5/16 inches. It uses a bolting mechanism to secure the door in the closed position. Ensure the door's track and frame can accommodate these dimensions before installation.

What material is the PRIME-LINE garage stop ball made from?

The PRIME-LINE garage stop ball (GD 52286) is constructed from rubber and includes a retracting cord. It is used as a buffer or stop for garage doors during operation, preventing over-travel. The rubber material provides impact absorption and durability for repeated use. This part is not load-bearing but serves as a mechanical stop in the door's travel path.

Does 3G Electric supply PRIME-LINE products?

Yes — 3G Electric (S) Pte. Ltd. supplies PRIME-LINE products. We stock the PRIME-LINE catalog and supply genuine factory-original products with full manufacturer warranty and technical support.