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.

Solar
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
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

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.

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

< Products

Snap Lock® Compression Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMT
Type(s): Connector
Connection Type(s): Compression
Feature(s): Concrete-TightRain-TightSnap Lock®

Snap Lock® compression type connectors are used to secure and terminate steel EMT conduit to a knockout in a metal box or enclosure. The patent-pending Snap Lock® design provides a faster installation allowing the EMT conduit to snap into the fitting without the use of tools. For wet or dry location applications.

  • Conduit snaps into connector
  • Concrete-tight
  • Rain-tight
Model Number
ECON050
ECON075
ABC
1.151.260.39
ABC
1.181.50.39
cULus: E210498

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

Snap Lock® Compression Coupling

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMT
Type(s): Coupling
Connection Type(s): Compression
Feature(s): Concrete-TightRain-TightSnap Lock®

Snap Lock® compression type couplings are used to join lengths of steel EMT conduit without the use of tools. The patent pending Snap Lock® design provides a faster installation. For wet location applications.

  • Conduit snaps into coupling
  • Concrete-tight
  • Rain-tight
Model Number
ECOP050
ECOP075
ABC
1.351.260.81
ABC
1.431.51.03
cULus: E210498

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

Rain-Tight Compression Coupling

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: EMT
Type(s): Coupling
Connection Type(s): Compression
Feature(s): Concrete-TightRain-Tight

Compression type couplings are used to join lengths of steel EMT conduit. For rain-tight and concrete-tight applications.

  • Concrete-tight
  • Rain-tight
Model Number Retail Pack Master Pack Package Type
02-54863 1 10 Boxed - Individual UPC
02-54864 1 5 Boxed - Individual UPC
02-54865 1 5 Boxed - Individual UPC
AB
2.52.04
AB
2.782.27
AB
2.882.74
< Products

Compression Connector

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: EMT
Type(s): Connector
Connection Type(s): Compression
Feature(s): Concrete-Tight

Compression type connectors are used to secure and terminate steel EMT conduit to a knockout in a metal box or enclosure. For dry location applications.

  • Concrete-tight
  • 2-1/2” and 3” also listed for Rigid conduit or IMC
Model Number Retail Pack Master Pack Package Type
49030 1 10 Polybag
46030 5 20 Polybag
49031 1 12 Polybag
46031 5 10 Polybag
02-54532 1 20 Boxed - Individual UPC
02-54533 1 10 Boxed - Individual UPC
02-54534 1 5 Boxed - Individual UPC
02-54535 1 5 Boxed - Individual UPC
ABC
1.311.050.5
ABC
1.481.280.52
ABC
1.531.560.64
ABC
1.71.940.68
ABC
1.962.170.72
ABC
2.072.680.72
cULus: E210498

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

Rain-Tight Compression Connector

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: EMT
Type(s): Connector
Connection Type(s): Compression
Feature(s): Concrete-TightRain-Tight

Compression type connectors are used to secure and terminate steel EMT conduit to a knockout in a metal box or enclosure. For rain-tight and concrete-tight applications.

  • Concrete-tight
  • Rain-tight
Model Number Retail Pack Master Pack Package Type
02-54853 1 10 Boxed - Individual UPC
02-54854 1 5 Boxed - Individual UPC
02-54855 1 5 Boxed - Individual UPC
ABC
2.12.040.65
ABC
2.252.270.66
ABC
2.42.740.7
< Products

Compression Coupling

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: EMT
Type(s): Coupling
Connection Type(s): Compression
Feature(s): Concrete-Tight

Compression type couplings are used to join lengths of steel EMT conduit. For dry location applications.

  • Concrete-tight
Model Number Retail Pack Master Pack Package Type
49040 1 10 Polybag
46040 5 6 Polybag
49041 1 12 Polybag
46041 5 5 Polybag
02-54542 1 10 Boxed - Individual UPC
02-54543 1 10 Boxed - Individual UPC
02-54544 1 5 Boxed - Individual UPC
02-54545 1 5 Boxed - Individual UPC
ABC
1.640.721.05
ABC
1.80.941.28
ABC
1.881.181.56
ABC
2.091.541.94
ABC
2.41.752.17
ABC
2.332.222.68
cULus: E210498

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

EMT-to-Box Offset Compression Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMT
Type(s): Connector
Connection Type(s): CompressionOffset
Feature(s): Concrete-Tight

Compression type offset connectors are used to make a slight adjustment in terminating the end of a run of steel EMT conduit to a metal box or enclosure. For dry location applications.

  • Concrete-tight
Model Number Retail Pack Master Pack Package Type
49706 1 20 Polybag
49707 1 20 Polybag
ABC
2.050.980.47
ABC
2.851.230.47
UL: E210498
CSA: LR57925

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

Snap Lock® Compression Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMT
Type(s): Connector
Connection Type(s): Compression
Feature(s): Concrete-TightRain-TightSnap Lock®

Snap Lock® compression type connectors are used to secure and terminate steel EMT conduit to a knockout in a metal box or enclosure. The patent-pending Snap Lock® design provides a faster installation allowing the EMT conduit to snap into the fitting without the use of tools. For wet or dry location applications.

  • Conduit snaps into connector
  • Concrete-tight
  • Rain-tight
Model Number Retail Pack Master Pack Package Type
49032 1 25 Polybag
49033 1 15 Polybag
ABC
1.151.260.39
ABC
1.181.50.39
cULus: E210498

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

Snap Lock® Compression Coupling

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMT
Type(s): Coupling
Connection Type(s): Compression
Feature(s): Concrete-TightRain-TightSnap Lock®

Snap Lock® compression type couplings are used to join lengths of steel EMT conduit without the use of tools. The patent pending Snap Lock® design provides a faster installation. For wet location applications.

  • Conduit snaps into coupling
  • Concrete-tight
  • Rain-tight
Model Number Retail Pack Master Pack Package Type
49072 1 25 Polybag
49073 1 15 Polybag
ABC
1.351.260.81
ABC
1.431.51.03
cULus: E210498

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

Compression Coupling

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMT
Type(s): Coupling
Connection Type(s): Compression
Feature(s): Concrete-Tight

Compression type couplings are used to join lengths of steel EMT conduit. For dry location applications.

  • Concrete-tight
  • 2-1/2″ to 3″ also approved for Rigid
Model Number Retail Pack Master Pack Package Type
49260 1 10 Polybag
18022 3 5 Polybag
44260 5 6 Polybag
TC-611 50 2 Contractor Pack
49261 1 12 Polybag
18024 2 5 Polybag
44261 5 5 Polybag
TC-612 25 2 Contractor Pack
55262M 1 10 Polybag
02-55262 1 10 Polybag
55263M 1 5 Polybag
02-55263 1 5 Polybag
55264M 1 5 Polybag
02-55264 1 5 Polybag
55265M 1 5 Polybag
02-55265 1 5 Polybag
02-55066 1 2 Polybag
02-55266 1 5 Polybag
02-55267 1 2 Polybag
ABC
1.70.980.72
ABC
1.190.980.38
ABC
1.781.230.94
ABC
1.291.220.41
ABC
1.811.521.19
ABC
2.121.851.53
ABC
2.422.151.76
ABC
2.472.592.22
ABC
3.413.292.9
ABC
3.63.973.55
UL: E210498
CSA: LR57925

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

Rain-Tight Compression Coupling

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMT
Type(s): Coupling
Connection Type(s): Compression
Feature(s): Concrete-TightRain-Tight

Compression type couplings are used to join lengths of steel EMT conduit. For rain-tight and concrete-tight applications.

  • Concrete-tight
  • Rain-tight
Model Number Retail Pack Master Pack Package Type
49860 1 50 Polybag
49861 1 25 Polybag
02-55862 1 10 Boxed - Individual UPC
ABC
1.751.020.7
ABC
1.811.280.93
ABC
2.071.521.18
cULus: E210498

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

Compression Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMT
Type(s): Connector
Connection Type(s): Compression
Feature(s): Concrete-Tight

Compression type connectors are used to secure and terminate steel EMT conduit to a knockout in a metal box or enclosure. For dry location applications.

  • Concrete-tight
  • 2-1/2″ to 3″ also approved for Rigid
Model Number Retail Pack Master Pack Package Type
49250 1 50 Polybag
18021 3 10 Polybag
44250 5 15 Polybag
55250 50 10 Bulk - No Individual UPC
TC-601 50 2 Contractor Pack
49251 1 25 Polybag
18023 2 5 Polybag
44251 5 5 Polybag
55251 25 10 Bulk - No Individual UPC
TC-602 25 2 Contractor Pack
55252M 1 10 Polybag
02-55252 1 10 Polybag
55253M 1 5 Polybag
02-55253 1 8 Polybag
55254M 1 5 Polybag
02-55254 1 5 Polybag
55255M 1 5 Polybag
02-55255 1 5 Polybag
02-55256 1 5 Polybag
02-55257 1 2 Polybag
ABC
1.190.980.38
ABC
1.291.220.41
ABC
1.481.520.55
ABC
1.71.850.61
ABC
1.862.150.62
ABC
2.132.590.76
ABC
2.623.151.02
ABC
2.73.971.04
UL: E210498
CSA: LR57925

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

Insulated Compression Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMT
Type(s): Connector
Connection Type(s): Compression
Feature(s): Concrete-TightInsulated

Compression type connectors are used to secure and terminate steel EMT conduit to a knockout in a metal box or enclosure. For dry location applications.

  • With 90° C rated insulator
  • Concrete-tight
Model Number Retail Pack Master Pack Package Type
69250 1 50 Polybag
64250 5 20 Polybag
55350 50 2 Contractor Pack
69251 1 25 Polybag
64251 5 5 Polybag
55351 25 2 Contractor Pack
65525 1 10 Boxed - Individual UPC
65253 1 8 Boxed - Individual UPC
65254 1 5 Boxed - Individual UPC
65255 1 5 Boxed - Individual UPC
ABC
1.190.980.38
ABC
1.291.220.41
ABC
1.481.520.55
ABC
1.71.850.61
ABC
1.862.150.62
ABC
2.132.590.76
UL: E210498
CSA: LR57925

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

Rain-Tight Compression Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMT
Type(s): Connector
Connection Type(s): Compression
Feature(s): Concrete-TightRain-Tight

Compression type connectors are used to secure and terminate steel EMT conduit to a knockout in a metal box or enclosure. For rain-tight and concrete-tight applications.

  • Concrete-tight
  • Rain-tight
Model Number Retail Pack Master Pack Package Type
49850 1 50 Polybag
49851 1 25 Polybag
02-55852 1 10 Boxed - Individual UPC
ABC
1.311.020.38
ABC
1.341.260.4
ABC
1.481.50.55
cULus: E210498

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

90° Compression Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMT
Type(s): Connector
Connection Type(s): 90 DegreeCompression
Feature(s): Concrete-Tight

90° compression type connectors are used to secure and terminate steel EMT conduit to a knockout in a metal box or enclosure where a 90° bend is required. For dry location applications.

  • Concrete-tight
Model Number Retail Pack Master Pack Package Type
49057 1 10 Polybag
44057 2 20 Polybag
49058 1 10 Polybag
44058 2 5 Polybag
02-56059 1 10 Boxed - Individual UPC
ABC
1.350.980.51
ABC
1.471.230.52
ABC
2.171.520.68
UL: E155411
CSA: LR57925

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