Aluminum Standoff 1.25" x 0.25" 4-40 M-F 4-Pack

Pololu item #: 1066

This product has been discontinued.

These hexagonal male-female aluminum standoffs keep parts spaced 1.25" (32 mm) apart and are great for building a multi-level robot chassis. Both ends of these 0.25"-wide standoffs have 4-40 threads. This 4-pack of standoffs includes 4 aluminum nuts for securing the top of the standoff to your project.

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Note: This product has been discontinued. Please consider the similar (but not identical in all dimensions) Aluminum Standoff 1.25" 4-40 M-F 4-pack as an alternative.

Mechanical drawing of aluminum standoff 1.25″ × 0.25″ 4-40 M-F.


These hexagonal metal standoffs are great for mounting PCBs to your chassis or to separate multiple levels of decks in your robot. Each male-female standoff is 1.25" long by 0.25" wide, and the threads extend another 3/16" past the standoff – just enough to work well with our 1/8"-thick acrylic chassis. You can easily screw multiple units together to make longer standoffs. The threads are 4-40 on both ends.

Included Hardware

Four 4-40 aluminum nuts are included for attaching the male end of the standoffs to PCBs or chassis. To connect the female end to your project, you will need standard 4-40 machine screws which are available at most local hardware stores.


These metal standoffs are available in different lengths and thread types:

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People often buy this product together with:

Pololu Ball Caster with 3/8″ Metal Ball Pololu Ball Caster with 3/8″ Metal Ball
Tamiya 70157 Universal Plate Set (2pcs.) Tamiya 70157 Universal Plate Set (2pcs.)
0.1" (2.54mm) Crimp Connector Housing: 1x2-Pin 25-Pack 0.1" (2.54mm) Crimp Connector Housing: 1x2-Pin 25-Pack

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