Stainless Steel Gland Washer
Stainless steel cable gland washers provide mechanical support, secure retention, and environmental sealing for cable entry points on industrial enclosures. Designed for metric, PG, and NPT threaded cable glands, these washers ensure consistent torque distribution and prevent moisture, dust, and corrosive media ingress in demanding industrial environments.
Product Overview
Stainless steel cable gland washers provide mechanical support, secure retention, and environmental sealing for cable entry points on industrial enclosures. Designed for metric, PG, and NPT threaded cable glands, these washers ensure consistent torque distribution and prevent moisture, dust, and corrosive media ingress in demanding industrial environments.
Manufactured via precision stamping and CNC machining in our ISO 9001 certified facility, our washers meet strict dimensional tolerances to prevent panel distortion and thread stripping during installation.
Key Features
Material Integrity: Produced from solid Stainless Steel 304 (EN 1.4301 / UNS S30400) and Stainless Steel 316 (EN 1.4401 / UNS S31600) for superior pitting and chloride resistance.
Precision Stamping: Burr-free edges and flat parallel surfaces ensure uniform clamping pressure against enclosure walls.
Thread Compatibility: Engineered for standard metric (M12 to M63), PG (PG7 to PG48), and NPT thread profiles.
Ingress Protection Support: Maintains IP66, IP67, IP68, and IP69K ratings when paired with compatible cable glands and sealing elements.
Temperature Resistance: Operates reliably from -60°C to +200°C (dependent on integrated sealing lip variants if applicable).
Technical Specifications & MOQ Overview
|
Parameter |
Specification Details |
|
Material Grades |
AISI 304 (A2), AISI 316 (A4), AISI 316L |
|
Thread Standards |
Metric (ISO 68-1 / ISO 965), PG (DIN 40430), NPT (ANSI B1.20.1) |
|
Size Range |
M12 × 1.5 to M63 × 1.5 / PG7 to PG48 / 1/4" to 2" NPT |
|
Thickness |
1.0 mm to 2.0 mm (Standard tolerance: ±0.05 mm) |
|
Operating Temperature |
-60°C to +200°C |
|
Minimum Order Quantity (MOQ) |
In-stock standard sizes: 1,000 pieces |
|
Compliance |
RoHS, REACH, CE, Conflict Minerals Free |
Engineering Resources & CAD Download: [Download 2D/3D CAD Models (STEP/IGES Formats) & Tolerance Specs]
Product Options
Material Options: SS304 for standard industrial use; SS316/316L for marine, offshore, and chemical processing environments.
Surface Finish: Mill finish, vibratory deburred, passivated (ASTM A967 chemical passivation), or electro-polished.
Washer Types:
Flat plain washers for general load distribution.
External/Internal tooth lock washers for vibration-resistant earthing and grounding.
Bonded sealing washers (Stainless steel metal ring with vulcanized NBR/FKM/Silicone inner lip).
Custom Dimensions: Non-standard outer diameters, inner diameters, or increased thickness for high-torque applications.
Applications
Outdoor electrical control panels and distribution boards
Stainless steel terminal and junction boxes
Marine automation and shipboard electrical systems
Food and beverage processing machinery (washdown areas)
Renewable energy installations (solar inverter housings, wind turbine nacelles)
Oil, gas, and petrochemical skid units
OEM & ODM Customization
Our in-house tooling room and high-speed progressive stamping presses support rapid custom development:
Non-Standard Sizes: Custom inner/outer diameters to fit specialized gland locknuts or restricted panel spaces.
Special Alloys: Available in Duplex Stainless Steel (2205) or Monel upon request for extreme corrosive environments.
Laser Marking: Part number, heat number, or logo laser-etched directly onto bulk-packed batches for full traceability.
Packaging: Custom bag quantities, barcoded labeling, and corrosion-inhibiting VCI (Vapor Corrosion Inhibitor) packaging for ocean freight.
Quality Control
Manufacturing processes are monitored through strict quality control checkpoints:
Incoming Material Inspection: PMI (Positive Material Identification) testing via XRF spectrometer verifies exact chemical composition (Nickel, Chromium, Molybdenum ratios) for SS304 and SS316.
Dimensional Verification: Automated optical sorting and optical comparator checks guarantee flat parallelism and inner/outer diameter tolerances within ±0.02 mm.
Passivation Testing: Salt spray testing (ASTM B117) exceeding 500 hours for SS316 variants.
Documentation: Material Test Reports (MTR / EN 10204 3.1) provided upon request for every production lot.
Frequently Asked Questions
Q: What is the difference between SS304 and SS316 gland washers for outdoor use?
A: SS304 is suitable for general industrial outdoor environments. SS316 contains Molybdenum, providing superior resistance to chlorides, marine salt spray, and acidic chemical washdowns.
Q: Do these washers provide electrical grounding or earthing?
A: Plain flat washers provide mechanical clamping. For grounding functions, select our external or internal tooth lock washers designed to bite through paint or anodized layers on enclosure walls.
Q: What thread standards are supported?
A: We stock and manufacture Metric (M12–M63), PG (PG7–PG48), and NPT threads. Custom thread clearances can be produced per customer CAD drawings.
Q: Are mill test certificates available?
A: Yes. EN 10204 3.1 material certificates and dimensional inspection reports are supplied with bulk orders upon request.
Q: What is the minimum order quantity (MOQ)?
A: Standard sizes kept in stock have an MOQ of 1,000 pieces. Custom dimensions or special material grades require an MOQ of 5,000 pieces.
Q: What is the standard production lead time?
A: In-stock items ship within 3 to 5 business days. Custom stamped parts or non-standard thicknesses require 15 to 20 business days.
Request a Quote
To receive a prompt technical quotation, please specify the following parameters:
Thread Standard & Size: (e.g., Metric M20 × 1.5, PG13.5, or 1/2" NPT)
Material Grade: (SS304 / SS316 / SS316L)
Washer Type: (Plain flat, tooth lock, or bonded sealing washer)
Quantity: (Annual volume or per-lot requirement - Note standard MOQ: 1,000 pcs for stock items, 5,000 pcs for custom items)
Special Requirements: (Passivation, specific thickness, custom packaging, or 3.1 MTR needed)
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