MarketsCastingsStampingSourcing SolutionsAbout UsWhy Sigma
Electrical
Electrical

An extensive range of robust fittings and weatherproof products.

Automotive
Automotive

Connectivity solutions such as high brackets, busbars, and connector pins.

Power Transmission & Distribution
Power Transmission & Distribution

Connectors & structural components for cutouts, transformers, & substations.

Aerospace
Aerospace

Complex sensor housings & fracture-critical products.

Appliances
Appliances

Robust castings and assemblies for everyday appliances.

Commercial Hardware
Commercial Hardware

Finished components for commercial & residential hardware applications.

Electronics & Telecom
Electronics & Telecom

Precision metal stamped sensors, connectors and cast housings & covers.

Fluid Power
Fluid Power

Durable, precision products for high-pressure applications.

Food & Beverage
Food & Beverage

Handles, leveling pins, flow valves & button housings.

Lighting
Lighting

Custom housings to fully assembled commercial & industrial light fixtures.

Marine
Marine

Durable corrosion-resistant engineered castings and subassemblies.

Medical & Dental
Medical & Dental

Medical-grade parts for implants, housings, manifolds, and pumps.

Oil & Gas
Oil & Gas

Custom housings and covers for flow control, pressure valves & meters.

Power Tools
Power Tools

Durable yet lightweight custom metal housings.

Energy
Energy

Innovative precision metal stamped parts.

High Pressure Die Casting
High Pressure Die Casting

High-pressure liquid metal is pressed into a precision metal mold cavity, and then cooled & solidified under pressure.

Ideal for a wide range of applications, including automotive, agricultural, electronics, and medical.

Sand Casting
Sand Casting

Castings with complex shapes & inner cavities that are produced in a sand mold

Ideal for parts with complex shapes and inner cavities

Gravity Die Casting
Gravity Die Casting

A mold is filled with liquid metal using gravity and cooled and solidified in the mold to obtain a casting

Ideal for parts with complex shapes made with steel, aluminum or magnesium alloys

Investment Casting
Investment Casting

A process used to obtain a mold without a parting surface; creates parts with high dimensional & geometric accuracy

Ideal for near-net shaped parts with complex shapes and high precision requirements

Partner Services
Partner Services

Custom Tooling, Machining, Surface Finishing, Special Purpose Machine Design & Development

Precision Metal Stamping
Precision Metal Stamping

More than 80 presses convert metal sheets into custom parts

Ideal for parts for electronic connectors and microprocessor chips

Swiss CNC Machining
Swiss CNC Machining

A specialized CNC machine capable of producing extremely small, precise parts

Ideal for complex miniature screws, contact pins & micro-fasteners

Partner Services
Partner Services

Rapid Prototypes, Heat Treating, Automated Assembly

Company History
Company History

Learn more about our company milestones.

Plant Locations
Plant Locations

Learn more about our global manufacturing facilities.

Company News
Company News

See our company announcements and press releases.

Contact Us
Contact Us

Let us know how we can help create a solution for you

Resources
Resources

Download catalogs and key product guides.

Global Code of Conduct
Global Code of Conduct

Download our Code of Conduct and report violations.

Innovation at Sigma
Innovation at Sigma

Purposeful innovation – the continual improvement and innovation of custom-designed and precision-made products and solutions.

Engineered Solutions
Engineered Solutions

Sigma offers solutions for complex product characteristics and technical requirements.

Global Supply Chain Management
Global Supply Chain Management

U.S.-based supply chain management teams support our customers.

Partner Services
Partner Services

Sigma is a vertically integrated single-source solution provider.

Sustainability at Sigma
Sustainability at Sigma

Our commitment to excellence drives us to build a better, more sustainable future in all aspects of our operations.

Safety at Sigma
Safety at Sigma

Safety is more than just a priority at Sigma Engineered Solutions – it’s a core value.

Feature: Double Snap Lock®

< Products

Double Snap Lock® Squeeze Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): 90 DegreeSqueeze
Feature(s): Double Snap Lock®InsulatedSnap Lock®

Double Snap Lock® squeeze connectors are used to terminate AC, MC or FMC/RWFMC to a knockout in a metal box or enclosure. The patented Double Snap Lock® design provides a faster installation. For dry location applications.

  • No tools required
  • 90° C rated throat insulator
  • Patent-pending design
Trade Size
Model Number Retail Pack Master Pack Package Type
69417 Polybag
69418 Polybag
69419 Polybag
ABCVolume
1.371.730
ABCVolume
1.682.060
ABCVolume
cCSAus: 174008
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of cancer and reproductive harm from exposure to Lead.
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® Squeeze Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): 90 DegreeSqueeze
Feature(s): Double Snap Lock®InsulatedSnap Lock®

Double Snap Lock® squeeze connectors are used to terminate AC, MC or FMC/RWFMC to a knockout in a metal box or enclosure. The patented Double Snap Lock® design provides a faster installation. For dry location applications.

  • No tools required
  • 90° C rated throat insulator
  • Patent-pending design
  • Refer to Connector Listing PDF under RESOURCES tab below for specific cable and conduit ranges
Trade Size
Model Number
SSQ037DSI
SSQ050DSI
SSQ075DSI
ABCVolume
1.371.730
ABCVolume
1.682.060
ABCVolume
cCSAus: 174008
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of cancer and reproductive harm from exposure to Lead.
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® Duplex Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): Duplex
Feature(s): Double Snap Lock®Snap Lock®

Double Snap Lock® duplex connectors are used to terminate two runs of AC, MC or FMC/RWFMC to a knockout in a dry location box or enclosure. The patented Double Snap Lock® design provides a faster installation.

  • No tools required
  • Robust insulator will not fall out
  • Refer to Connector Listing PDF under RESOURCES tab below for specific cable and conduit ranges
Trade Size
Model Number
DUP1DSI
ABCVolume
2.11.490.4
cULus: E155411
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of cancer and reproductive harm from exposure to Lead.
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® Duplex Connector – Steel

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): Duplex
Feature(s): Double Snap Lock®Snap Lock®

Double Snap Lock® duplex connectors are used to terminate two runs of AC, MC or FMC/RWFMC to a knockout in a dry location box or enclosure. The patented Double Snap Lock® design provides a faster installation.

  • No tools required
  • Robust insulator will not fall out
  • Refer to Connector Listing PDF under RESOURCES tab below for specific cable and conduit ranges
Trade Size
Model Number
DUPS1DSI
ABCVolume
cULus: E155411
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of reproductive harm from exposure to Bisphenol A (BPA).
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® Cut-In Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): Cut-In
Feature(s): Double Snap Lock®Snap Lock®

Used to terminate armored or metal clad cable to an enclosure or outlet box

  • Die-cast from high strength zinc alloy
  • Refer to Connector Listing PDF under RESOURCES tab below for specific cable and conduit ranges
Trade Size
Model Number
CBXC037DSI
ABCVolume
cULus: E155411
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of cancer and reproductive harm from exposure to Lead.
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® AC/MC Connector – Steel

Material: Steel
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): AC/MC
Feature(s): Double Snap Lock®Snap Lock®

Double Snap Lock® AC/MC connectors are used to terminate AC, MC or FMC/RWFMC to a knockout in a dry location box or enclosure. The patented Double Snap Lock® design provides a faster installation.

  • No tools required
  • Robust insulator will not fall out
  • Refer to Connector Listing PDF under RESOURCES tab below for specific cable and conduit ranges
Trade Size
Model Number
BXCS037DSI
ABCVolume
cULus: E155411
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of reproductive harm from exposure to Bisphenol A (BPA).
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® AC/MC Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): AC/MC
Feature(s): Double Snap Lock®Snap Lock®

Double Snap Lock® AC/MC connectors are used to terminate AC, MC or FMC/RWFMC to a knockout in a dry location box or enclosure. The patented Double Snap Lock® design provides a faster installation.

  • No tools required
  • Robust insulator will not fall out
  • Refer to Connector Listing PDF under RESOURCES tab below for specific cable and conduit ranges
Trade Size
Model Number
BXC037DSI
ABCVolume
1.450.760.39
cULus: E155411
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of cancer and reproductive harm from exposure to Lead.
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® 90˚ Squeeze Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): 90 DegreeSqueeze
Feature(s): Double Snap Lock®InsulatedSnap Lock®

Double Snap Lock® 90° squeeze connectors are used to terminate AC, MC or FMC/RWFMC to a knockout in a metal box or enclosure where a 90° bend is required. The patented Double Snap Lock® design provides a faster installation. For dry location applications.

  • No tools required
  • 90° C rated throat insulator
  • Patented design
  • Refer to Connector Listing PDF under RESOURCES tab below for specific cable and conduit ranges
Trade Size
Model Number
ASQ037DSI
ASQ050DSI
ABCVolume
1.371.730
ABCVolume
1.682.060
cULus: E155411
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of cancer and reproductive harm from exposure to Lead.
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® Duplex Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): Duplex
Feature(s): Double Snap Lock®Snap Lock®

Double Snap Lock® duplex connectors are used to terminate two runs of AC, MC or FMC/RWFMC to a knockout in a dry location box or enclosure. The patented Double Snap Lock® design provides a faster installation.

  • No tools required
  • Robust insulator will not fall out
Trade Size
Model Number Retail Pack Master Pack Package Type
49635 1 12 Polybag
ABCVolume
2.11.490.4
cULus: E155411
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of cancer and reproductive harm from exposure to Lead.
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® Cut-In Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): Cut-In
Feature(s): Double Snap Lock®Snap Lock®

Double Snap Lock® cut-in connectors are used to terminate AC, MC or FMC/RWFMC to a knockout in an old work (cut-in) dry location box or enclosure. The Double Snap Lock® design provides a faster installation.

  • No tools required
  • Flush mount inside the box
  • Robust insulator will not fall out
Trade Size
Model Number Retail Pack Master Pack Package Type
45510 2 12 Polybag
ABCVolume
1.541.111.1
cULus: E155411
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of cancer and reproductive harm from exposure to Lead.
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® AC/MC Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): AC/MC
Feature(s): Double Snap Lock®Snap Lock®

Double Snap Lock® AC/MC connectors are used to terminate AC, MC or FMC/RWFMC to a knockout in a dry location box or enclosure. The patented Double Snap Lock® design provides a faster installation.

  • No tools required
  • Robust insulator will not fall out
Trade Size
Model Number Retail Pack Master Pack Package Type
42505 5 10 Polybag
45505 2 12 Polybag
C-570 25 2 Contractor Pack
ABCVolume
1.450.760.39
cULus: E155411
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of cancer and reproductive harm from exposure to Lead.
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® AC/MC Connector – Steel

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): AC/MC
Feature(s): Double Snap Lock®Snap Lock®

Double Snap Lock® AC/MC connectors are used to terminate AC, MC or FMC/RWFMC to a knockout in a dry location box or enclosure. The patented Double Snap Lock® design provides a faster installation.

  • No tools required
  • Robust insulator will not fall out
Trade Size
Model Number Retail Pack Master Pack Package Type
45065 2 12 Polybag
ABCVolume
1.420.790.39
cULus: E155411
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of reproductive harm from exposure to Bisphenol A (BPA).
See www.P65Warnings.ca.gov
< Products

Double Snap Lock® 90˚ Squeeze Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): 90 DegreeSqueeze
Feature(s): Double Snap Lock®InsulatedSnap Lock®

Double Snap Lock® 90° squeeze connectors are used to terminate AC, MC or FMC/RWFMC to a knockout in a metal box or enclosure where a 90° bend is required. The patented Double Snap Lock® design provides a faster installation. For dry location applications.

  • No tools required for installation
  • 90° C rated throat insulator
  • Patented design
Trade Size
Model Number Retail Pack Master Pack Package Type
49815 2 6 Polybag
49816 1 12 Polybag
ABCVolume
1.371.73
ABCVolume
1.682.06
cULus: E155411
Standards: UL 514B, CSA C22.2 No. 18.3-12
65!
WARNING:
Risk of cancer and reproductive harm from exposure to Lead.
See www.P65Warnings.ca.gov