Hex Shims | McMaster-Carr

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3,683 Products

Male-Female Threaded Hex Standoffs

Position components in assemblies, as well as separate or connect parts with these standoffs.

Thread Adapters

Inch-to-Inch Male Hex Thread Adapters

Need to join two female-threaded parts, such as coupling nuts, with dissimilar inch thread sizes? Attach them to these adapters and tighten the exterior hex nut for a secure connection.

Metric-to-Metric Male Hex Thread Adapters

Twist these adapters onto female metric threads to change pitch or switch thread sizes.

Inch-to-Metric Male Hex Thread Adapters

One side inch, one side metric, and a hex in the middle—these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch threads to metric. Tighten with a standard wrench.

Inch-to-Inch Male-Female Hex Thread Adapters

Change thread sizes or types, such as fine to coarse threads, on parts without changing gender.

Metric-to-Metric Male-Female Hex Thread Adapters

In addition to joining male- and female-threaded parts, these adapters can increase or decrease metric thread sizes and change the thread pitch.

Inch-to-Metric Male-Female Hex Thread Adapters

Change inch threads to metric with these adapters, or swap metric threads for inch. An external hex lets you tighten or loosen them with a wrench.

Inch-to-NPT Male-Female Hex Thread Adapters

Inch-to-NPT Male-Female Hex
Thread Adapters with Through Hole

The through hole allows you to connect float rods to float valves.

Inch-to-Inch Female Hex Thread Adapters

Connect two differently sized male-threaded parts, such as threaded rods, and tighten with a standard wrench.

Metric-to-Metric Female Hex Thread Adapters

Increase or decrease metric thread size from one male-threaded part to another. Commonly used to connect two differently sized threaded rods, they have a hex-shaped body, so you can tighten them with a standard wrench.

Left-Hand to Right-Hand
Female Hex Thread Adapters

Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.

Inch-to-Metric Female Hex Thread Adapters

Adapt threaded rods from inch to metric. These adapters connect two male-threaded fasteners, so you can change the gender of a mating part or increase or decrease its thread size. The hex-shaped body fits into the head of a standard wrench.

Male-Female Threaded Hex Standoffs

Male-Female Threaded Hex Standoffs

Thread Adapters

Inch-to-Inch Male Hex Thread Adapters

Metric-to-Metric Male Hex Thread Adapters

Inch-to-Metric Male Hex Thread Adapters

Inch-to-Inch Male-Female Hex Thread Adapters

Metric-to-Metric Male-Female Hex Thread Adapters

Inch-to-Metric Male-Female Hex Thread Adapters

Inch-to-NPT Male-Female Hex Thread Adapters

Inch-to-NPT Male-Female HexThread Adapters with Through Hole

Inch-to-Inch Female Hex Thread Adapters

Metric-to-Metric Female Hex Thread Adapters

Left-Hand to Right-HandFemale Hex Thread Adapters

Inch-to-Metric Female Hex Thread Adapters

Inch-to-NPT Male-Female Hex
Thread Adapters with Through Hole

Left-Hand to Right-Hand
Female Hex Thread Adapters