Electrical

An extensive range of robust fittings and weatherproof products.

Automotive

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

Power Transmission & Distribution

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

Aerospace

Complex sensor housings & fracture-critical products.

Appliances

Robust castings and assemblies for everyday appliances.

Commercial Hardware

Finished components for commercial & residential hardware applications.

Electronics & Telecom

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

Fluid Power

Durable, precision products for high-pressure applications.

Food & Beverage

Handles, leveling pins, flow valves & button housings.

Lighting

Custom housings to fully assembled commercial & industrial light fixtures.

Marine

Durable corrosion-resistant engineered castings and subassemblies.

Medical & Dental

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

Oil & Gas

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

Power Tools

Durable yet lightweight custom metal housings.

Solar

Innovative precision metal stamped parts.

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

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

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

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

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

Precision Metal Stamping

More than 80 presses convert metal sheets into custom parts

Ideal for parts for electronic connectors and microprocessor chips

Swiss Screw Machining

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

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

Partner Services

Rapid Prototypes, Heat Treating, Automated Assembly

Company History

Learn more about our company milestones.

Plant Locations

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Company News

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Contact Us

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Resources

Download catalogs and key product guides.

Global Code of Conduct

Download our Code of Conduct and report violations.

Innovation at Sigma

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

Engineered Solutions

Sigma offers solutions for complex product characteristics and technical requirements.

Global Supply Chain Management

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

Partner Services

Sigma is a vertically integrated single-source solution provider.

< 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
Model Number
BXCS037DSI
cULus: E155411

Standards: UL 514B, CSA C22.2 No. 18.3-12
< Products

AC/MC Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): AC/MC

AC/MC connectors are used to terminate AC or MC to a knockout in a dry location box or enclosure.

  • Refer to Connector Listing PDF under RESOURCES tab below for specific cable and conduit ranges
Model Number
BXC037
ABC
0.790.630.37
cULus: E155411

Standards: UL 514B, CSA C22.2 No. 18.3-12
< 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
Model Number
BXC037DSI
ABC
1.450.760.39
cULus: E155411

Standards: UL 514B, CSA C22.2 No. 18.3-12
< Products

Snap Lock® AC/MC Connector

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

AC/MC connectors are used to terminate AC or MC to a knockout in a dry location box or enclosure.

  • Faster installation with no locknut required
  • Refer to Connector Listing PDF under RESOURCES tab below for specific cable and conduit ranges
Model Number
BXC037S
ABC
0.870.940.4
cULus: E155411

Standards: UL 514B, CSA C22.2 No. 18.3-12
< 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
Model Number Retail Pack Master Pack Package Type
42505 5 10 Polybag
45505 2 12 Polybag
C-570 25 2 Contractor Pack
ABC
1.450.760.39
cULus: E155411

Standards: UL 514B, CSA C22.2 No. 18.3-12
< Products

Snap Lock® AC/MC Connector

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

AC/MC connectors are used to terminate AC or MC to a knockout in a dry location box or enclosure.

  • Faster installation with no locknut required
Model Number Retail Pack Master Pack Package Type
42502 5 10 Polybag
45502 2 12 Polybag
C-560 25 2 Contractor Pack
ABC
0.870.940.4
cULus: E155411

Standards: UL 514B, CSA C22.2 No. 18.3-12
< 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
Model Number Retail Pack Master Pack Package Type
45065 2 12 Polybag
ABC
1.420.790.39
cULus: E155411

Standards: UL 514B, CSA C22.2 No. 18.3-12
< Products

AC/MC Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): AC/MC

AC/MC connectors are used to terminate AC or MC to a knockout in a dry location box or enclosure.

Model Number Retail Pack Master Pack Package Type
49501 1 100 Polybag
18058 4 10 Polybag
45501 10 15 Polybag
C-550 100 5 Contractor Pack
ABC
0.790.630.37
cULus: E155411

Standards: UL 514B, CSA C22.2 No. 18.3-12