Thread | McMaster-Carr

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Interference Shielding

1,205 Products

Thread Size Identifiers

Screw Size Identifiers

Find thread size, screw size, diameter, and drill bit size with one tool

3 products

Pipe Thread and Thread Pitch Identifiers

Check NPT and BSPT pipe sizes and measure thread pitch

1 product

Thread-It Screw, Bolt, and Nut Size Identifiers

Thread fasteners into holes or onto plugs to quickly find thread size

3 products

Grease Fitting Size Identifiers

Screw grease fittings into the labeled holes until you find the one that fits

1 product

Threads per Inch and Thread Pitch Identifiers

Press against threads to measure pitch and threads per inch

22 products

Wall-Mount Thread-It Screw, Bolt, and Nut Size Identifiers

Mount to a wall for easy access
Thread fasteners into holes or onto plugs to quickly find thread size

1 product

Thread Identifier Sets

Includes calipers and gauges to identify external and internal threads

1 product

Threads per Inch and Thread Pitch Size Checkers

Calculate pitch diameter with the included wires and equations

1 product

All-in-One Identifiers

Find tube, pipe, fastener, wire, and drill bit sizes with one tool

2 products

Screw, Bolt, and Nut Size Identifiers

Quickly check screw or nut size

3 products

Pipe Thread Identifiers

Insert NPT pipe to check thread size and taper

1 product

Threads per Inch and Center Identifiers

Measure external threads per inch and line up thread-cutting tools

1 product

Pipe, Tubing, and Hose Size Identifiers

Check pipe thread size and diameter

2 products

Thread Gauges for Lug Nuts

Identify the most common bolt thread sizes

1 product

Acme Thread Identifiers

Identify Acme threads and use as a guide while cutting them

1 product

Other Products

Thread

Sew pieces of fabric together

18 products

Twine

Tie, bind, and cinch objects together; smaller in diameter than rope

80 products

Nylon Line

Tie objects together with a thin strand of strong, wear-resistant nylon; also known as fishing line

7 products

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

393 products

Conduit Threading Line

Vacuum or blow through conduit and attach to a rope for pulling cable

1 product

Lead

A dense insulator often used to shield against radiation and absorb sound and vibration

12 products

Steel

Strong, machinable, and weldable—all with material certificates for traceability

287 products

Filter/Regulator/Lubricator End Block Sets

Swap FRL parts without disconnecting lines; blocks stay on pipe while replacing parts between them

2 products

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

45 products

Nickel

An upgrade from stainless steel to withstand harsh chemicals and acids—all with material certificates for traceability

151 products

Copper

Our most conductive metal for electrical applications—all with material certificates for traceability

86 products

Tantalum

Conductive with a higher melting point than most metals—all with material certificates for traceability

17 products

Gold

Form into electronic components that won't corrode—all with material certificates for traceability

4 products

Titanium

The most corrosion-resistant metal we offer—all with material certificates for traceability

12 products

Niobium

Conductive and corrosion resistant even at extreme temperatures—all with material certificates for traceability

4 products

Platinum

Formable and conductive while resisting extreme heat—all with material certificates for traceability

18 products

Molybdenum

Retains its shape and strength in extreme temperatures—all with material certificates for traceability

12 products

Brass

More machinable than copper and bronze—all with material certificates for traceability

12 products