Plastic quarter-turn fastener M1 series

stainless steelfor enclosuresfor panels

Overview
The Southco M1 compression latch combines a flush-mount appearance with a lift-and-turn actuation to provide a compressive seal for watertight and vibration-damping panel closures. It is designed for applications that require integrated aesthetics and reliable sealing.

Features and Benefits

• Flush-mount profile delivers a recessed appearance while providing compressive action for watertight sealing and reduced vibration/noise.
• Lift-and-turn actuation reduces wear on the pawl and frame compared with conventional actuators.
• Corrosion-resistant materials suitable for outdoor and marine-exposed environments.
• Available in two main sizes and multiple finishes to suit a range of panels and aesthetic requirements.
• Supplied with gaskets and O-rings where a watertight fit is required.
• Installs in a single round hole for straightforward panel integration.
• Concealed fasteners provide a clean exterior appearance.
• Compatible with Southco "one look, one latch" program for marine applications.

Available Options

• Multiple pawl/cam options (six common styles) for application-specific fit.
• 2.5" (63.5 mm) model available in locking versions (basic keylock or 3-wafer keylock).
• Various finishes and appearance options (electropolished, natural, PVD including black PVD).

Standards and Certifications

• Models suitable for applications requiring NEMA 12 and IP-65 protection levels (verify by part number).

Typical product variants / examples

• Medium size variants: typical door/panel thickness ranges 2–12 mm and 12–22.5 mm; grip ranges examples 21–28 mm, 27–40 mm, 39–52 mm, 63–76 mm.
• Large size variants: examples include grip ranges 23.5–35 mm, 34–48 mm, 47–61 mm, 60–75 mm, 74–88 mm; door thickness examples as above.
• Materials/finishes: 316 stainless steel (electropolished) and plastic variants; decorative PVD and black PVD available for some SKUs.

Technical specifications

• Brand: Southco
• Model: M1
• Profile: Flush-mount
• Actuation: Lift-and-Turn (lift then rotate)
• Primary materials: 316 stainless steel; plastic variants available
• Finishes: Electropolished, Natural, PVD (including Black PVD)
• Sizes: Medium and Large
• Typical door/panel thickness (examples): 2–12 mm; 12–22.5 mm; 18.5–29 mm
• Grip ranges (examples): 21–28 mm; 27–40 mm; 39–52 mm; 47–61 mm; 60–75 mm; 63–76 mm; 74–88 mm
• Latching options: Single-point or three-point
• Access options: Non-locking, locking, keyed (basic keylock, 3-wafer keylock)
• Installation: Single round hole
• Sealing: Supplied with gaskets and O-rings for watertight fit
• Fasteners: Concealed fasteners for clean exterior appearance
• Compliance: Suitable for NEMA 12 and IP-65 environments (model dependent)
• Applications: Marine, outdoor panels, vibration-prone enclosures where watertight sealing and integrated appearance are required