# Aluminum Standoff: 3/4" Length, 4-40 Thread, M-F (4-Pack)

**Type:** Product page · **SKU:** POLOLU-1949 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia)
**Page:** https://core-electronics.com.au/aluminum-standoff-3-4-length-4-40-thread-m-f-4-pack.html ([markdown](https://core-electronics.com.au/aluminum-standoff-3-4-length-4-40-thread-m-f-4-pack.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## Description

| [![](https://a.pololu-files.com/picture/0J2813.250.jpg?4e2c2ee07e7bae333ac5ec52c360e580)](https://a.pololu-files.com/picture/0J2813.1200.jpg?4e2c2ee07e7bae333ac5ec52c360e580) |
|---|

These M-F (male-female) aluminum standoffs are great for separating stacked components or chassis tiers. Each hexagonal standoff is 3/16" wide with male threading extending 3/16" to 1/4" from one end (dimension M on the mechanical drawing to the right) and female threading to a depth of 3/16" to 1/4" in the other end (dimension F). A variety of lengths and thread types are available:

 | BodyLength | Thread | Price per4-pack |  | BodyLength | Thread | Price per4-pack |
|---|---|---|---|---|---|---|
| 0.25" | [\#2-56](https://core-electronics.com.au/aluminum-standoff-1-4-length-2-56-thread-m-f-4-pack.html) | [\#4-40](https://core-electronics.com.au/aluminum-standoff-1-4-length-4-40-thread-m-f-4-pack.html) | $1.75 |  | 11 mm | [M2.5, 4mm](https://core-electronics.com.au/aluminum-standoff-for-raspberry-pi-11mm-length-4mm-m2-5-thread-m-f-4-pack.html) | $1.95 |
| 0.375" | [\#2-56](https://core-electronics.com.au/aluminum-standoff-3-8-length-2-56-thread-m-f-4-pack.html) | [\#4-40](https://core-electronics.com.au/aluminum-standoff-3-8-length-4-40-thread-m-f-4-pack.html) | $1.75 |  | 11 mm | [M2.5, 6mm](https://core-electronics.com.au/aluminum-standoff-for-raspberry-pi-11mm-length-6mm-m2-5-thread-m-f-4-pack.html) | $1.95 |
| 0.5" | [\#2-56](https://core-electronics.com.au/aluminum-standoff-1-2-length-2-56-thread-m-f-4-pack.html) | [\#4-40](https://core-electronics.com.au/aluminum-standoff-1-2-length-4-40-thread-m-f-4-pack.html) | $1.75 |  | 18.6 mm | [M2.5, 6mm](https://core-electronics.com.au/aluminum-standoff-for-raspberry-pi-18-6mm-length-6mm-m2-5-thread-m-f-4-pack.html) | $2.25 |
| 0.75" | [\#2-56](https://core-electronics.com.au/aluminum-standoff-3-4-length-2-56-thread-m-f-4-pack.html) | [\#4-40](https://core-electronics.com.au/aluminum-standoff-3-4-length-4-40-thread-m-f-4-pack.html) | $1.95 |  |  |  |  |
| 1.0" | [\#2-56](https://core-electronics.com.au/aluminum-standoff-1-length-2-56-thread-m-f-4-pack.html) | [\#4-40](https://core-electronics.com.au/aluminum-standoff-1-length-4-40-thread-m-f-4-pack.html) | $2.25 |  |  |  |  |
| 1.25" | [\#2-56](https://core-electronics.com.au/aluminum-standoff-1-1-4-length-2-56-thread-m-f-4-pack.html) | [\#4-40](https://core-electronics.com.au/aluminum-standoff-1-1-4-length-4-40-thread-m-f-4-pack.html) | $2.95 |  |  |  |  |
| 1.5" | [\#2-56](https://core-electronics.com.au/aluminum-standoff-1-1-2-length-2-56-thread-m-f-4-pack.html) | – | $3.15 |  |  |  |  |

The standoffs can be screwed together to make longer standoffs.

[F-F (female-female) standoffs](https://core-electronics.com.au/category/114/female-female-standoffs) with threading running through the entire length of the body are also available:

Alternatives available with variations in these parameter(s): [length thread type Select variant… ](https://core-electronics.com.au/catalog/select-by-specification?parameters=0J76%2C0J109&product=1949&products=2080)

Pololu carry a variety of 2-56 and 4-40 [screws and hex nuts](https://core-electronics.com.au/hardware/screws-nuts.html) that can be used with these standoffs.

**People often buy this product together with:**

 | [![Machine Hex Nut: #4-40 (25-pack)](https://a.pololu-files.com/picture/0J2958.100.jpg?c8ec9aa6fe7fbb56955f9ffa731072fa)](https://core-electronics.com.au/machine-hex-nut-4-40-25-pack.html) | [Machine Hex Nut: #4-40 (25-pack)](https://core-electronics.com.au/machine-hex-nut-4-40-25-pack.html) |
|---|---|

 | [![Aluminum Standoff: 1/2" Length, 4-40 Thread, M-F (4-Pack)](https://a.pololu-files.com/picture/0J2792.100.jpg?7c56b5403494aeec9642e8c45392b6c0)](https://core-electronics.com.au/aluminum-standoff-1-2-length-4-40-thread-m-f-4-pack.html) | [Aluminum Standoff: 1/2" Length, 4-40 Thread, M-F (4-Pack)](https://core-electronics.com.au/aluminum-standoff-1-2-length-4-40-thread-m-f-4-pack.html) |
|---|---|

 | [![Aluminum Standoff: 1" Length, 4-40 Thread, M-F (4-Pack)](https://a.pololu-files.com/picture/0J2794.100.jpg?223f0e5814a51528b0deaa179e7b4c19)](https://core-electronics.com.au/aluminum-standoff-1-length-4-40-thread-m-f-4-pack.html) | [Aluminum Standoff: 1" Length, 4-40 Thread, M-F (4-Pack)](https://core-electronics.com.au/aluminum-standoff-1-length-4-40-thread-m-f-4-pack.html) |
|---|---|

**Dimensions**

 | Length: | 0.75 in |
|---|---|

**General specifications**

 | Gender: | Male-Female |
|---|---|
| Thread type: | 4-40 |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/a/l/aluminum_standoff_3_4_inch_length_4_40_thread_m_f__4_pack___pololu_1949__00.jpg)