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

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Learn more about our company milestones.

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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