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

Learn more about our global manufacturing facilities.

Company News

See our company announcements and press releases.

Contact Us

Let us know how we can help create a solution for you

Resources

Download catalogs and key product guides.

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

One-Hole Strap

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: Rigid
Type(s): Strap
Connection Type(s): One-Hole

One-hole straps are used for providing support for Rigid conduit or IMC as required by the National Electrical Code (NEC).

  • Snap-on type
Model Number
RS0501
RS0751
RS1001
RS1251
RS1501
RS2001
RS2501
RS3001
ABC
1.850.630.91
ABC
2.20.751.13
ABC
2.60.881.33
ABC
2.950.891.65
ABC
3.621.021.91
ABC
4.091.142.32
ABC
51.252.75
ABC
5.531.253.6
cULus: E229278

Standards: UL 2239, CSA C22.2 No. 18.4-15
< Products

One-Hole Strap

Material: Zinc-Plated Iron
Category: Fittings
Sub Category: EMTRigid
Type(s): Strap
Connection Type(s): One-Hole

Used to support rigid conduit or IMC to mounting surface

  • Can be used with clamp backs
  • Cast from high strength malleable iron
    and zinc plated
  • Cast from high strength malleable iron and zinc plated
  • Approved for use with EMT and Rigid/IMC
Model Number
MS037
MS050
MS075
MS100
MS125
MS150
MS200
MS250
MS300
MS350
MS400
,cULus: ,E229278
,CSA: ,LR57925

Standards: UL 2239, CSA 22.2 No. 18
< Products

One-Hole Strap

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: EMT
Type(s): Strap
Connection Type(s): One-Hole

One-hole straps are used to provide support for steel EMT conduit as required by the National Electric Code (NEC).

  • Snap-on type
Model Number
ES0501
ES0751
ES1001
ES1251
ES1501
ES2001
ABC
1.660.550.74
ABC
1.90.630.91
ABC
2.130.761.13
ABC
2.830.891.46
ABC
3.1211.82
ABC
3.821.062.22
cULus: E229278

Standards: UL 2239, CSA C22.2 No. 18.4-15
< Products

One-Hole Flex Strap

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: Flex
Type(s): Strap
Connection Type(s): One-Hole

One-hole flex straps are used to provide support for runs of FMC, AC or MC as required by the National Electric Code (NEC).

  • Snap-on type
Model Number
BXS037
ABC
1.120.50.53
< Products

One-Hole Oval SE Strap

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: NMSE
Type(s): Strap
Connection Type(s): One-Hole
Feature(s): Oval SE

One-hole straps are used to secure Oval SE cable as required by the National Electric Code (NEC).

Model Number Retail Pack Master Pack Package Type
49702 3 50 Polybag
41702 10 10 Polybag
41703 6 10 Polybag
49701 3 50 Polybag
41701 10 20 Polybag
41704 4 10 Polybag
49704 1 50 Polybag
ABC
1.950.570.61
ABC
2.51.020.82
ABC
1.710.570.51
ABC
2.810.980.93
< Products

One-Hole Strap

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: Rigid
Type(s): Strap
Connection Type(s): One-Hole

One-hole straps are used for providing support for Rigid conduit or IMC as required by the National Electrical Code (NEC).

  • Snap-on type
Model Number Retail Pack Master Pack Package Type
47900 3 25 Polybag
49900 4 25 Polybag
42900 5 25 Polybag
1801 50 2 Contractor Pack
49901 3 20 Polybag
42901 5 20 Polybag
1802 25 2 Contractor Pack
49902 1 20 Polybag
42902 2 15 Polybag
49903 1 25 Polybag
44903 4 5 Polybag
49904 1 25 Polybag
44904 2 5 Polybag
44905 2 5 Polybag
55905-S 1 25 Boxed - Individual UPC
55906-S 1 25 Boxed - Individual UPC
55907-S 1 25 Boxed - Individual UPC
ABC
1.850.630.91
ABC
2.20.751.13
ABC
2.60.881.33
ABC
2.950.891.65
ABC
3.621.021.91
ABC
4.091.142.32
ABC
4.091.142.32
ABC
51.252.75
ABC
51.252.75
ABC
5.531.253.6
Standards: UL 2239, CSA C22.2 No. 18.4-15
< Products

One-Hole NM Strap

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: NMSE
Type(s): Strap
Connection Type(s): One-Hole

One-hole straps are used to secure NM Sheathed cable as required by the National Electric Code (NEC).

Model Number Retail Pack Master Pack Package Type
49700 3 50 Polybag
41700 10 20 Polybag
ABC
1.40.50.36
< Products

One-Hole Midget Strap

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: GroundingNMSE
Type(s): Strap
Connection Type(s): One-Hole
Feature(s): Midget

One-hole midget straps are used to secure bare solid copper wire to a working surface as required by the National Electric Code (NEC).

Model Number Retail Pack Master Pack Package Type
44720 50 10 Polybag
44721 50 5 Polybag
ABC
0.670.30.19
ABC
0.980.50.21
< Products

Clamp Back and Strap

Material: Zinc-Plated Iron
Category: Fittings
Sub Category: Rigid
Type(s): Clamp BackStrap
Connection Type(s): One-Hole

Clamp backs and straps are used to secure and suspend IMC, Rigid or EMT conduit while providing space between the conduit and mounting surface.

  • Suitable for maximum 10 ft. support interval
Model Number Retail Pack Master Pack Package Type
55140 1 10 Polybag
55141 1 10 Polybag
55142 1 10 Polybag
55143 1 5 Polybag
55144 1 5 Polybag
55145 1 5 Polybag
ABC
2.31.050.96
ABC
2.441.171
ABC
3.021.271.31
ABC
3.531.591.72
ABC
3.911.612.06
ABC
4.81.952.49
UL: E229278
CSA: LR57925

Standards: UL 2239, CSA C22.2 No. 18
< Products

One-Hole Strap

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: EMT
Type(s): Strap
Connection Type(s): One-Hole

One-hole straps are used to provide support for steel EMT conduit as required by the National Electric Code (NEC).

  • Snap-on type
Model Number Retail Pack Master Pack Package Type
47920 3 50 Polybag
49920 4 40 Polybag
18071 5 10 Polybag
42950 5 40 Polybag
44920 10 20 Polybag
45920S 25 20 Polybag
55920-S 100 10 Bulk - No individual UPC
1901 100 5 Contractor Pack
49921 3 25 Polybag
18072 4 10 Polybag
47921 4 25 Polybag
42951 5 25 Polybag
45921S 15 20 Polybag
43921 20 20 Polybag
55921-S 50 10 Bulk - No individual UPC
1902 50 5 Contractor Pack
49922 1 15 Polybag
44922 4 20 Polybag
42952 5 20 Polybag
55922-S 25 10 Bulk - No individual UPC
49923 1 25 Polybag
42953 2 20 Polybag
44923 4 20 Polybag
49924 1 25 Polybag
44924 2 20 Polybag
49925 1 15 Polybag
44925 2 8 Polybag
ABC
1.660.550.74
ABC
1.90.630.91
ABC
2.130.761.13
ABC
2.830.891.46
ABC
3.1211.82
ABC
3.821.062.22
cULus,: E229278,

Standards: UL 2239, CSA C22.2 No. 18.4-15
< Products

One-Hole Flex Strap

Material: Zinc-Plated Steel
Category: Fittings
Sub Category: Flex
Type(s): Strap
Connection Type(s): One-Hole

One-hole flex straps are used to provide support for runs of FMC, AC or MC as required by the National Electric Code (NEC).

  • Snap-on type
Model Number Retail Pack Master Pack Package Type
47919 3 50 Polybag
44919 10 20 Polybag
55919M 100 2 Contractor Pack
55919 100 2 Contractor Pack
ABC
1.120.50.53