Aluminum Standoff: 5/16" Length, 4-40 Thread, FF (4-Pack)
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These 5/16" -long hexagonal female-female aluminum standoffs keep parts spaced 0.313 inches (7.9 mm) apart. They are like elongated, 3/16″-wide hex nuts, with 4-40 threads running through the entire length of each standoff. They are sold in packs of 4 .
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Overview
These FF (female-female) aluminum standoffs are great for separating stacked components or chassis tiers and can be used as an alternative to our nylon spacers . Each hexagonal standoff is 3/16″ wide and has threading running through the entire length, similar to an elongated hex nut. A variety of lengths are available with either 2-56 or 4-40 threading:
Alternatives available with variations in these parameter(s): length thread type Select variant…
Longer standoffs can be made by stacking multiple FF standoffs on a single screw.
MF (male-female) standoffs are also available, and can be screwed together or combined with FF versions to make longer standoffs:
| Body Length |
Threads | Body Length |
Threads | ||
|---|---|---|---|---|---|
| 0.25″ | #2-56 | #4-40 | 11 mm | M2.5, 4mm | |
| 0.375″ | #2-56 | #4-40 | 11 mm | M2.5, 6mm | |
| 0.5″ | #2-56 | #4-40 | 18.6mm | M2.5, 6mm | |
| 0.75″ | #2-56 | #4-40 | |||
| 1.0″ | #2-56 | #4-40 | |||
| 1.25″ | #2-56 | #4-40 | |||
| 1.5″ | #2-56 | – | |||
We carry a variety of 2-56 and 4-40 screws and hex nuts that can be used with these standoffs.