Stainless Steel Gland Locknut
The Stainless Steel Gland Locknut fastens cable glands and fittings to threaded or unthreaded entry holes on metallic enclosures. Machined from solid stainless steel bar stock, it provides high mechanical retention, preserves electrical grounding continuity, and resists degradation in corrosive environments. Compatible with hazardous location and high-hygiene setups.
Product Overview
The Stainless Steel Gland Locknut fastens cable glands and fittings to threaded or unthreaded entry holes on metallic enclosures. Machined from solid stainless steel bar stock, it provides high mechanical retention, preserves electrical grounding continuity, and resists degradation in corrosive environments. Compatible with hazardous location and high-hygiene setups.
Key Features
Material Composition: Solid AISI 304 or AISI 316L stainless steel, delivering high resistance to oxidation, sulfur compounds, and saline exposure.
Thread Tolerance: Precision-machined to 6H metric standards (or equivalent PG/NPT tolerances) for smooth, binding-free engagement with cable glands.
Vibration Resistance: Flat-faced, uniform hexagonal profile ensures even torque distribution and prevents loosening under continuous industrial vibration.
Grounding Continuity: Metal-to-metal surface contact maintains secure electrical bonding between the cable gland and grounded panel walls.
Technical Specifications
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Specification |
Details |
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Thread Standards |
Metric (ISO 965), PG (DIN 40430), NPT (ANSI B1.20.1), G (BSPP) |
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Size Range |
Metric (M12 to M63), PG (PG7 to PG48), NPT (1/4" to 2") |
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Alloy Grades |
AISI 304 (EN 1.4301) / AISI 316 / 316L (EN 1.4404) |
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Operating Range |
-60°C to +200°C (gasket dependent) |
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Compliance Standards |
RoHS, REACH, CE, UL-rated enclosure compatible, and Ex certified for hazardous areas (when paired with certified glands) |
Product Options
Alloy Selection: SS304 for general outdoor and industrial automation; SS316/316L for marine, chemical processing, and wastewater applications requiring enhanced pitting resistance.
Profile Variations: Standard hex thickness and low-profile variants for space-restricted terminal boxes.
Surface Treatments: Standard passivated finish or electropolished finish for cleanroom, pharmaceutical, and food-processing environments (NSF-compliant setups).
Applications
Industrial Enclosures: Securing cable entry points on stainless steel control and instrumentation cabinets.
Marine & Offshore Skids: Junction boxes and power distribution units exposed to saltwater spray and high humidity.
Process Automation: Chemical, pharmaceutical, and food-grade washdown production floors.
Hazardous & Heavy Industries: Oil and gas facilities, explosive atmospheres (Ex e/Ex d junction boxes), and outdoor electrical transmission infrastructure.
OEM & ODM Customization
Non-Standard Dimensions: Custom thread pitches, modified inner diameters, or specialized UNEF threads produced from engineering drawings.
Alternative Alloys: Fabrication available in 316Ti, Duplex stainless steel, or specialized engineering brass on request.
Traceability Marking: Laser-engraved part numbers, heat numbers, or customer logos on the flat hex surface.
Packaging Solutions: Bulk industrial packaging, barcoded labeling, or pre-kitted sets including matching cable glands and O-rings.
Quality Control
Incoming Material Verification: PMI (Positive Material Identification) spectrometer analysis performed on every lot of raw stainless steel bar stock.
Dimensional Gauging: 100% profile testing using calibrated thread plug and ring gauges to verify pitch diameter and tolerance class.
Surface Cleanliness: Ultrasonic degreasing and deburring remove all residual machining oils and burrs.
Documentation: Material Test Reports (MTR per EN 10204 3.1) and RoHS/REACH certificates issued upon request.
Frequently Asked Questions
Q: How do I match the locknut size to my cable gland?
A: Select the locknut matching the exact thread standard and size of your cable gland (e.g., an M20x1.5 gland requires an M20x1.5 locknut).
Q: When should I specify SS316/316L instead of SS304?
A: Choose SS316/316L for marine environments, coastal installations, and areas subject to acidic cleaning agents or chloride exposure, due to its molybdenum content.
Q: Are these locknuts reusable?
A: Yes. Solid stainless steel construction prevents thread stripping under standard tightening torque limits, allowing reliable disassembly and reuse.
Q: Do these locknuts include integrated locking teeth?
A: Standard units feature flat faces. External tooth lock washers can be provided separately if enhanced anti-vibration locking is required.
Q: What is the standard production lead time?
A: Standard catalog dimensions ship within 3 to 5 business days. Custom machined configurations require 15 to 25 business days.
Q: What is the Minimum Order Quantity (MOQ)?
A: Standard stock sizes have an MOQ of 100 pieces. Custom dimensions depend on tooling setup and material availability.
Request a Quote
To receive pricing and availability, please specify:
Thread Standard & Size: (e.g., Metric M25, PG21, NPT 3/4")
Material Grade: SS304 or SS316/316L
Quantity: (Batch quantity / Annual forecasted volume)
Special Requirements: (Passivation, electropolishing, laser marking, MTR documentation, or custom packaging)
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