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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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

Screw-In Coupling

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Coupling
Connection Type(s): Screw-In

Screw-in type couplings are used to join two lengths of FMC where minimum spacing between conduit is desired. For dry location applications.

  • Screws into conduit
Model Number
SICP050
SICP075
SICP100
SICP125
SICP150
SICP200
ABC
1.790.920.2
ABC
2.111.130.22
ABC
2.421.360.31
ABC
2.761.750.31
ABC
3.072.110.31
ABC
3.282.670.31
UL: E155411
CSA: LR57925

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

Screw-In Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): Screw-In

Screw-in type connectors are used to terminate FMC to a knockout in a dry location box or enclosure.

  • Screws into conduit
Model Number
SICN037
SICN050
SICN075
SICN100
SICN125
SICN150
SICN200
ABC
1.280.920.46
ABC
1.350.920.41
ABC
1.611.130.39
ABC
1.931.360.54
ABC
2.131.750.61
ABC
2.322.110.63
ABC
2.562.670.76
UL: E155411
CSA: LR57925

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

Insulated Screw-In Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): Screw-In
Feature(s): Insulated

Screw-in type connectors are used to terminate FMC to a knockout in a dry location box or enclosure.

  • Screws into conduit
  • 90° C rated throat insulator
Model Number
SICN037I
SICN050I
SICN075I
SICN100I
SICN125I
SICN150I
SICN200I
ABC
1.360.920.46
UL: E155411
CSA: LR57925

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

Snap Lock® Screw-In Connector

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

Snap Lock® screw-in type connectors are used to terminate FMC/RWFMC to a knockout in a dry location box or enclosure.

  • Faster installation with no locknut required
  • Screws into conduit
Model Number
SICN037S
SICN050S
ABC
1.190.830.4
ABC
1.270.830.4
UL: E155411
CSA: LR57925

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

EMT-to-Flex Coupling

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMTFlex
Type(s): Coupling
Connection Type(s): CompressionScrew-In
Feature(s): Combination

Combination couplings are used to provide a transition from steel EMT conduit to Flexible Metal Conduit. For dry location applications.

  • Compression type
Model Number
CSICP050
CSICP075
CSICP100
ABC
1.40.980.15
ABC
1.521.230.21
ABC
1.991.520.31
UL: E155411
CSA: LR57925

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

Screw-In Coupling

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Coupling
Connection Type(s): Screw-In

Screw-in type couplings are used to join two lengths of FMC where minimum spacing between conduit is desired. For dry location applications.

  • Screws into conduit
Model Number Retail Pack Master Pack Package Type
18127 1 10 Polybag
49013 1 20 Polybag
56013 50 10 Bulk - No individual UPC
18128 1 10 Polybag
49014 1 25 Polybag
44014 5 20 Polybag
56014 25 10 Bulk - No individual UPC
02-56015 1 10 Boxed - Individual UPC
02-56016 1 10 Boxed - Individual UPC
02-56017 1 10 Boxed - Individual UPC
02-56018 1 10 Boxed - Individual UPC
ABC
1.790.920.2
ABC
2.111.130.22
ABC
2.421.360.31
ABC
2.761.750.31
ABC
3.072.110.31
ABC
3.282.670.31
UL: E155411
CSA: LR57925

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

Screw-In Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): Screw-In

Screw-in type connectors are used to terminate FMC to a knockout in a dry location box or enclosure.

  • Screws into conduit
Model Number Retail Pack Master Pack Package Type
49009 1 50 Polybag
42009 2 25 Polybag
18129 4 10 Polybag
56009 50 10 Bulk - No individual UPC
GC-38 50 2 Contractor Pack
49010 1 50 Polybag
18130 4 10 Polybag
44010 5 20 Polybag
56010 50 10 Bulk - No individual UPC
GC-50 50 2 Contractor Pack
49011 1 20 Polybag
18131 2 5 Polybag
56011 25 10 Bulk - No individual UPC
GC-75 25 2 Contractor Pack
02-56012 1 10 Boxed - Individual UPC
02-57013 1 10 Boxed - Individual UPC
02-57014 1 10 Boxed - Individual UPC
02-57015 1 10 Boxed - Individual UPC
ABC
1.280.920.46
ABC
1.350.920.41
ABC
1.611.130.39
ABC
1.931.360.54
ABC
2.131.750.61
ABC
2.322.110.63
ABC
2.562.670.76
UL: E155411
CSA: LR57925

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

Insulated Screw-In Connector

Material: Zinc Die-Cast
Category: Fittings
Sub Category: Flex
Type(s): Connector
Connection Type(s): Screw-In
Feature(s): Insulated

Screw-in type connectors are used to terminate FMC to a knockout in a dry location box or enclosure.

  • Screws into conduit
  • 90° C rated throat insulator
Model Number Retail Pack Master Pack Package Type
69335 1 50 Polybag
ABC
1.360.920.46
UL: E155411
CSA: LR57925

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

Snap Lock® Screw-In Connector

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

Snap Lock® screw-in type connectors are used to terminate FMC/RWFMC to a knockout in a dry location box or enclosure.

  • Faster installation with no locknut required
  • Screws into conduit
Model Number Retail Pack Master Pack Package Type
49170 1 25 Polybag
42170 2 20 Polybag
GC-138 25 2 Contractor Pack
49171 1 25 Polybag
ABC
1.190.830.4
ABC
1.181.30.39
ABC
1.270.830.4
cULus: E155411

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

EMT-to-Flex Coupling

Material: Zinc Die-Cast
Category: Fittings
Sub Category: EMTFlex
Type(s): Coupling
Connection Type(s): CompressionScrew-In
Feature(s): Combination

Combination couplings are used to provide a transition from steel EMT conduit to Flexible Metal Conduit. For dry location applications.

  • Compression type
Model Number Retail Pack Master Pack Package Type
49289 1 15 Polybag
55289 50 10 Bulk - No individual UPC
49290 1 10 Polybag
55290 25 10 Bulk - No individual UPC
49291 1 5 Polybag
55291 25 10 Bulk - No individual UPC
ABC
1.40.980.15
ABC
1.521.230.21
ABC
1.991.520.31
UL: E155411
CSA: LR57925

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