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Threaded Uncoated Black Steel & Iron Pipe Fittings

2,813 products
Threaded black steel fittings connect to black steel and black iron pipe for transporting gas and water, protecting electrical wiring, or delivering high-pressure steam and air. Uncoated black steel and iron fittings, also called black malleable iron fittings, are made from corrosion-resistant ungalvanized steel with a scaly, dark-colored iron oxide coating. These fittings are used in piping systems to change direction or connect to equipment or devices. Threaded fittings twist onto pipe using various male and female thread connections including NPT (National Pipe Thread) or BSPT (British Standard Pipe Taper). Threaded fittings come in a variety of sizes and shapes.

Class 125 Low Pressure Pipe Fittings

Class 125 Low Pressure Pipe Fittings

Class 125 threaded fittings connect with low-pressure (100-299 psi) pipe. Fittings twist onto pipe using various male and female thread connections including NPT (National Pipe Thread) or BSPT (British Standard Pipe Taper).

22.5° Elbow

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45° Elbow

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90° Discharge Elbow

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90° Elbow

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90° Reducing Elbow

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Concentric Reducer Coupling

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Cross

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Eccentric Reducer Coupling

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Hex Bushing

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Hex Coupling

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Reducing Cross

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Reducing Tee

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Tee

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Class 150 Medium Pressure Pipe Fittings

Class 150 Medium Pressure Pipe Fittings

Class 150 threaded fittings connect with medium-pressure (300-999 psi) pipe. Fittings twist onto pipe using various male and female thread connections including NPT (National Pipe Thread) or BSPT (British Standard Pipe Taper).

45° Elbow

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45° Street Elbow

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90° Drip Pan Elbow

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90° Elbow

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90° Reducing Elbow

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90° Reducing Street Elbow

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90° Street Elbow

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Cap

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Countersunk Plug

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Coupling

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Cross

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Extender

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Extension

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Hex Bushing

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Hex Head Bull Plug

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Hex Head Cap

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Hex Head Plug

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Hex Locknut

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Locknut

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Magnetic Hex Recessed Head Plug

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Magnetic Square Head Plug

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Magnetic Square Recessed Head Plug

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Merchant Coupling

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Open Return Bend

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Plug

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Reducer

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Reducing Coupling

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Reducing Tee

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Round Cap

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Square Head Plug

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Straight

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Street Tee

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Tee

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Union

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Waste Nut

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Wye

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Class 300 Medium to High Pressure Pipe Fittings

Class 300 Medium to High Pressure Pipe Fittings

Class 300 threaded fittings connect with medium- to high-pressure (300-3000 psi) pipe. Threaded fittings twist onto pipe using various male and female thread connections including NPT (National Pipe Thread) or BSPT (British Standard Pipe Taper).

45° Elbow

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45° Street Elbow

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90° Elbow

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90° Reducing Elbow

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90° Street Elbow

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Coupling

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Cross

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Hex Bushing

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Hex Head Bull Plug

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Reducer

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Reducing Coupling

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Reducing Tee

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Round Cap

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Round Head Bull Plug

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Square Head Plug

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Standard Bull Plug

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Tee

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Union

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Class 2000 Medium to High Pressure Pipe Fittings

Class 2000 Medium to High Pressure Pipe Fittings

Class 2000 threaded fittings connect with medium- to high-pressure (300-3000 psi) pipe. Threaded fittings twist onto pipe using various male and female thread connections including NPT (National Pipe Thread) or BSPT (British Standard Pipe Taper).

45° Elbow

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90° Elbow

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Cross

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Tee

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Class 3000 Medium to High Pressure Pipe Fittings

Class 3000 Medium to High Pressure Pipe Fittings

Class 3000 threaded fittings connect with medium- to high-pressure (300-3000 psi) pipe. Threaded fittings twist onto pipe using various male and female thread connections including NPT (National Pipe Thread) or BSPT (British Standard Pipe Taper).

45° Elbow

Forged Steel

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Low Temperature Steel

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45° Lateral Wye

Carbon Steel

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Forged Steel

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90° Elbow

Forged Steel

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Low Temperature Steel

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90° Street Elbow

Forged Steel

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Anvilet

Forged Steel

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Bushing

Forged Steel

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Coupling

Forged Steel

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Low Temperature Steel

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Cross

Forged Steel

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Elbowlet

Forged Steel

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Half Coupling

Forged Steel

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Hex Head Plug

Forged Steel

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Lateral Wye

Forged Steel

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Lug Union

Steel

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Outlet

Carbon Steel

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Low Temperature Steel

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Reducing Coupling

Forged Steel

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Reducing Tee

Forged Steel

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Round Cap

Forged Steel

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Round Head Plug

Forged Steel

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Tee

Forged Steel

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Low Temperature Steel

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Union

Forged Steel

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Low Temperature Steel

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Steel

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Class 6000 High Pressure Pipe Fittings

Class 6000 High Pressure Pipe Fittings

Class 6000 threaded fittings connect with high-pressure (1000-3000 psi) pipe. Threaded fittings twist onto pipe using various male and female thread connections including NPT (National Pipe Thread) or BSPT (British Standard Pipe Taper).

45° Elbow

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90° Elbow

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90° Street Elbow

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Anvilet

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Coupling

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Cross

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Elbowlet

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Half Coupling

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Hex Bushing

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Hex Head Plug

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Reducing Coupling

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Round Cap

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Square Head Plug

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Tee

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Union

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Class Standard (STD) High Pressure Pipe Fittings

Class Standard (STD) High Pressure Pipe Fittings

Class STD (standard) threaded fittings connect with high-pressure (1000-3000 psi) pipe. Class STD is the same as Schedule 40S and identical to Schedule 40 for NPS 1/8 to NPS 10. Class STD is based on the original 1927 standard that uses wall thickness and weight. Threaded fittings twist onto pipe using various male and female thread connections including NPT (National Pipe Thread) or BSPT (British Standard Pipe Taper).

Merchant Full Coupling

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Merchant Half Coupling

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Straight Tapped Merchant Coupling

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Swage Nipple

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Class Extra Strong (XS) High Pressure Pipe Fittings

Class Extra Strong (XS) High Pressure Pipe Fittings

Class XS (extra strong) threaded fittings connect with high-pressure (1000-3000 psi) pipe. Class XS is the same as Schedule 80S and identical to Schedule 80 for NPS 1/8 to NPS 8. Class XS is based on the original 1927 standard that uses wall thickness and weight. Threaded fittings twist onto pipe using various male and female thread connections including NPT (National Pipe Thread) or BSPT (British Standard Pipe Taper).

API Line Coupling

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Merchant Full Coupling

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Merchant Half Coupling

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Swage Nipple

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High Pressure Precision Pipe Fittings with Thread Sealant

 High Pressure Precision Pipe Fittings with Thread Sealant

High-pressure precision fittings connect with high-pressure (1000-3000 psi) pipe. Fittings are precision machined for leak-free connections between fittings and pipe and include sealant to create a secure fit. Threaded connections use PTFE tape to secure seal.

Hollow Hex Head Plug

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Extreme Pressure Instrumentation Pipe Fittings

Extreme Pressure Instrumentation Pipe Fittings

Extreme pressure instrumentation fittings connect with extreme pressure (3001+ psi) pipe. These fittings are precision machined and threaded for leak-free connections between fittings, instrumentation, and pipe. Threaded fittings twist onto pipe using various male and female thread connections including NPT (National Pipe Thread) or BSPT (British Standard Pipe Taper).

45° Street Elbow

Male NPT x Female NPT

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90° Elbow

Female NPT x Female NPT

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Male NPT x Male NPT

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90° Street Elbow

Male NPT x Female NPT

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Branch Tee

Female NPT x Female NPT x Male NPT

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Hex Coupling

Female NPT x Female NPT

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Hex Head Plug

Male NPT

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Hex Nipple

Male NPT x Male NPT

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Hollow Hex Head Plug

Male NPT

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Reducing Adapter

Female NPT x Male NPT

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Reducing Bushing

Male NPT x Female NPT

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Straight Adapter

Female NPT x Male NPT

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Female BSPP x Male NPT

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Female BSPT x Male NPT

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Female NPT x Male BSPP

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Female NPT x Male BSPT

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Male NPT x Male BSPP

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Male NPT x Male BSPT

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Street Tee

Female NPT x Male NPT x Female NPT

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Tee

Female NPT x Female NPT x Female NPT

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Extreme Pressure Pipe Fittings

Extreme Pressure Pipe Fittings

Extreme pressure threaded fittings connect with extreme pressure (3001+ psi) pipe. Threaded fittings twist onto pipe using various male and female thread connections including NPT (National Pipe Thread) or BSPT (British Standard Pipe Taper).

45° Elbow

Female NPT x Female NPTF

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45° Street Elbow

Female NPT x Male NPT

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Male NPT x Male NPT

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Male NPTF x Female NPTF

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90° Elbow

Female NPT x Female NPT

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Female NPT x Female NPTF

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Male NPT x Male NPT

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Male NPT x Male NPTF

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Male SAE x Female SAE

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Male SAE-ORB x Female NPTF

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Male SAE-ORB x NPTF

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90° Street Elbow

Male NPT x Female NPT

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Male NPT x Male NPT

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Male NPTF x Female NPT

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Adapter

Female NPT x Male NPT

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Female NPT x Female BSPP

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Male NPT x Female NPT

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Branch Tee

Female NPT x Female NPT x Male NPT

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Bushing

Female NPT x Male NPT

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Male NPT x Female NPT

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Coupling

Female NPT x Female NPT

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Female NPTF x Female NPTF

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Cross

Female NPT x Female NPTF x Female NPTF x Female NPTF

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Expander/Adapter

Male NPT x Female NPTF

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Hex Cap

Female NPT

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Hex Head Plug

Male NPT

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Male BSPT

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Male Metric

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Male SAE-ORB

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Hex Nipple

Male NPT x Male NPT

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Hollow Hex Plug

Male NPT

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Male Metric

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Male Metric x Female

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Male SAE-ORB

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Long Nipple

Male NPTF x Male NPTF

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Male Branch Tee

Female NPT x Male NPTF x Male

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Nipple

Male BSPT x Male BSPT

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Pipe Nipple

Male NPTF x Male NPTF

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Port Conversion Adapter

Male SAE x Male BSPP

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Reducer/Expander Adapter

Male BSPP x Female BSPP

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Male SAE x Female SAE

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Reducing Adapter

Male BSPT x Female BSPP

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Male NPTF x Female NPTF

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Male UN/UNF-2A x Male NPTF

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Run Tee

Female NPT x Male NPT x Female NPT

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Socket Pipe Plug

Male NPT

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Square Head Plug

Male NPT

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Straight

Female NPT x Female BSPP

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Male BSPP x Female NPTF

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Male BSPT x Female NPTF

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