Aluminum Standoff: 5/16" Length, 4-40 Thread, F-F (4-Pack)

Pololu item #: 2089
Brand: Generic
RoHS 3 compliant

Price break Unit price (US$)
1 2.25
5 2.07
25 1.90


backorders allowed

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.

Alternatives available with variations in these parameter(s): length thread type Select variant…

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Overview

These F-F (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 F-F standoffs on a single screw.

M-F (male-female) standoffs are also available, and can be screwed together or combined with F-F versions to make longer standoffs:

Body
Length
Thread Body
Length
Thread
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 18.6 mm 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.

People often buy this product together with:

Machine Hex Nut: #4-40 (25-pack) Machine Hex Nut: #4-40 (25-pack)
Machine Screw: #4-40, 1/4″ Length, Phillips (25-pack) Machine Screw: #4-40, 1/4″ Length, Phillips (25-pack)
Aluminum Standoff: 3/8" Length, 4-40 Thread, F-F (4-Pack) Aluminum Standoff: 3/8" Length, 4-40 Thread, F-F (4-Pack)

Related Categories

Female-Female Standoffs
Male-Female Standoffs
Nuts and Screws
Spacers
Hardware
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