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.

Connection Type: Screw-In

< 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
Trade Size
Model Number
SICP050
SICP075
SICP100
SICP125
SICP150
SICP200
ABCVolume
1.790.920.2
ABCVolume
2.111.130.22
ABCVolume
2.421.360.31
ABCVolume
2.761.750.31
ABCVolume
3.072.110.31
ABCVolume
3.282.670.31
UL: E155411
CSA: LR57925
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

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
Trade Size
Model Number
SICN037
SICN050
SICN075
SICN100
SICN125
SICN150
SICN200
ABCVolume
1.280.920.46
ABCVolume
1.350.920.41
ABCVolume
1.611.130.39
ABCVolume
1.931.360.54
ABCVolume
2.131.750.61
ABCVolume
2.322.110.63
ABCVolume
2.562.670.76
UL: E155411
CSA: LR57925
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

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
Trade Size
Model Number
SICN037I
SICN050I
SICN075I
SICN100I
SICN125I
SICN150I
SICN200I
ABCVolume
1.360.920.46
ABCVolume
ABCVolume
ABCVolume
ABCVolume
ABCVolume
ABCVolume
UL: E155411
CSA: LR57925
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

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
Trade Size
Model Number
SICN037S
SICN050S
ABCVolume
1.190.830.4
ABCVolume
1.270.830.4
UL: E155411
CSA: LR57925
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

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
Trade Size
Model Number
CSICP050
CSICP075
CSICP100
ABCVolume
1.40.980.15
ABCVolume
1.521.230.21
ABCVolume
1.991.520.31
UL: E155411
CSA: LR57925
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

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
Trade Size
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
ABCVolume
1.790.920.2
ABCVolume
2.111.130.22
ABCVolume
2.421.360.31
ABCVolume
2.761.750.31
ABCVolume
3.072.110.31
ABCVolume
3.282.670.31
UL: E155411
CSA: LR57925
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

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
Trade Size
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
ABCVolume
1.280.920.46
ABCVolume
1.350.920.41
ABCVolume
1.611.130.39
ABCVolume
1.931.360.54
ABCVolume
2.131.750.61
ABCVolume
2.322.110.63
ABCVolume
2.562.670.76
UL: E155411
CSA: LR57925
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

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
Trade Size
Model Number Retail Pack Master Pack Package Type
69335 1 50 Polybag
ABCVolume
1.360.920.46
UL: E155411
CSA: LR57925
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

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
Trade Size
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
ABCVolume
1.190.830.4
ABCVolume
1.181.30.39
ABCVolume
1.270.830.4
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

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
Trade Size
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
ABCVolume
1.40.980.15
ABCVolume
1.521.230.21
ABCVolume
1.991.520.31
UL: E155411
CSA: LR57925
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