Camden Stainless steel endcaps 18\" length - CM-PT375SS-18

We've spec'd a lot of access control cable infrastructure over the years, and the material choice for endcaps and conduit terminators is one of the quietest ROI decisions in the bill of materials. On paper, it looks cosmetic — stainless costs more, aluminum is cheaper. In practice, we've watched aluminum and zinc-plated endcaps fail silently in coastal and high-humidity facilities. Corrosion starts at the fastener interface, creeps into the cable termination, and manifests as intermittent reader timeouts or false alarms that take weeks to diagnose. By the time you've pulled a conduit run, re-soldered connections, and replaced the damaged endcap, you've spent 4-6 billable hours and the customer has experienced unplanned downtime. Stainless steel eliminates that entire failure mode. The CM-PT375SS-18 is particularly valuable in parking structures, loading docks, and outdoor reader mounting — anywhere moisture and salt are ambient conditions. The 18-inch length covers 85-90% of standard door-frame and wall-mounted reader installations we encounter, which means fewer custom cuts and faster rough-in scheduling.

Technical Highlights:

• 304/316 Stainless Steel Grade: Corrosion resistance in salt-spray and high-humidity environments is the core material property. We've seen zinc-plated equivalents degrade within 18-36 months; stainless steel maintains structural and aesthetic integrity beyond 10 years. The material cost premium is front-loaded; the maintenance cost savings are back-loaded and substantial.
• 3/8" ID Specification: Diameter tolerance is tighter than you'd expect. A 1/16" mismatch creates either a gap (water ingress, dust contamination) or binding (installation force damages the cable jacket). Always verify your existing cable assembly before ordering. If your system runs mixed cable diameters, you'll need both the CM-PT375SS and CM-PT250SS series in inventory.
• Integrated Mounting Provisions: The fastening points are molded into the stainless housing, not bolted-on hardware. This design reduces field variables — no loose fasteners, no misaligned mounting ears, no need to source complementary hardware. Mount it to the wall, the door frame, or the reader housing directly.
• 18-inch Length Standardization: This length covers the distance from a typical wall-mounted reader (4-6 inches above the door frame) to the strike or electric lock mounted on the door leaf. Longer runs (24", 36") require custom conduit routing; shorter runs (7", 12") are common for internal cabinet terminations. Know your termination-point-to-reader distance before specifying.
• Zero-Maintenance Finish: Stainless steel requires no protective coating, no annual cleaning regimen, no rust-inhibiting spray. Install and forget. In high-salt environments, an occasional freshwater rinse extends aesthetic shine, but it's optional.

Deployment Considerations:

• Verify cable diameter (3/8" ID) against your existing power transfer cable assembly. A loose fit will allow moisture and dust into the termination point; a tight fit may damage the cable jacket during installation. If your system uses 1/4" ID cable, order the CM-PT250SS series instead.
• 18-inch length is rigid enough for vertical mounting without sag, but only if the endcap is secured at both the cable entry point and the wall/door frame. Single-point mounting creates leverage stress on the fastener and may cause micro-movement during vibration (door slams, heavy foot traffic).
• Stainless steel is non-conductive but does not provide electrical isolation. If your conduit run is carrying both power and signal cables, ensure proper grounding per NEC Article 300 and local electrical codes. The endcap itself is neutral; compliance is a system-design responsibility.
• In outdoor installations, secure the endcap to a rigid structure (wall, door frame, metal post) rather than to the cable itself. Wind load and thermal cycling create stress on the cable if the endcap is unsupported. Pre-plan the mounting point during design; retrofit installations often require additional hardware.
• Stainless steel fasteners are strongly recommended if you're disassembling or remounting the endcap in a corrosive environment. Standard steel fasteners will corrode independently of the stainless housing, creating an eyesore and potential point failure.

The CM-PT375SS-18 is the right choice for any access control integrator deploying systems in outdoor, coastal, or high-humidity environments where long-term maintenance costs and aesthetic durability matter. Pair it with Camden's power transfer cable systems and you've eliminated one of the most common hidden failure points in access control infrastructure. For more options and variations, visit the Camden catalog.