Panduit MMP350-C316 316 Stainless Steel Marker Plate with Tag

The Panduit MMP350-C316 delivers permanent cable and equipment identification in corrosive environments where aluminum or standard steel tags fail. Built from marine-grade 316 stainless steel, this 3.5" × 0.75" marker plate withstands salt spray, chemical exposure, and temperature extremes common in coastal data centers, industrial control installations, wastewater treatment plants, and outdoor telecom shelters. The raised-slot feed design cuts installation time by guiding Panduit MLT-S and MIM series cable ties into position without fumbling—critical when you're labeling hundreds of conduit runs or valve assemblies on a project schedule. Ships 100 plates per package, 1000 per carton for medium to high-volume deployments.

Key Features

316 stainless steel construction resists pitting and crevice corrosion in chloride-rich and acidic environments where 304-grade and aluminum tags degrade

Raised slot feed design positions cable ties consistently and speeds installation—no hunting for the tie path when working overhead or in tight enclosures

3.5" × 0.75" (88.9 mm × 19.1 mm) format accommodates three lines of engraved or stamped text for circuit ID, destination, and install date

Silver finish maintains legibility under layers of dust and overspray; resists paint adhesion for easy field cleaning

100-pack matches typical job-site quantity for a mid-size rack or cable tray run without excess inventory

RoHS compliant for projects requiring lead-free material declarations

Type 316 stainless steel contains 2–3% molybdenum, giving it superior resistance to chlorides and sulfuric acid compared to the more common 304 alloy. In practice, this means MMP350-C316 tags survive in desalination plants, food processing facilities, marine structures, and chemical plants where cheaper tags corrode through within months. The material meets ASTM A240 standards and maintains structural integrity from -100°F to 800°F, covering every climate zone and most industrial process temperature ranges. The 0.020" nominal thickness resists bending during installation and stays flat against pipes or cable bundles—thinner tags curl and catch on adjacent infrastructure.

The raised slot runs lengthwise down the center of the plate and stands 0.040" proud of the surface. This tactile feature lets installers thread Panduit's Pan-Ty and Mini-Pan-Ty cable ties by feel in low-light environments or when working from a ladder. Compatible tie series include MLT-S (standard cable ties) and MIM (miniature cable ties); both lock securely without crushing the plate or requiring secondary fasteners. For engraving, the flat surface accepts rotary engravers, laser markers, and metal stamping tools—choose the method that matches your labeling workflow. Competitor cross-references include Brady ID4629, ID4609, ID4409, HellermannTyton SSTAG-11013-7316, and ID4429; verify dimensions and slot geometry before substitution. Typical applications include steam line identification in pharmaceutical clean rooms, conduit labeling in offshore oil platforms, valve tagging in municipal water systems, and cable route marking in industrial control panels subject to washdown procedures.

The 100-piece package quantity aligns with NEC 110.22 equipment marking requirements for a typical electrical room or telecom closet, while the 1000-piece carton supports multi-building campus deployments. RoHS compliance satisfies EU and California material restrictions for projects requiring environmental documentation. For installations demanding tamper evidence, pair these plates with Panduit's stainless steel cable ties featuring releasable heads—permanent identification with field-serviceable mounting when circuit modifications are anticipated.