Aluminum Standoff: 1/2" Length, 4-40 Thread, F-F (4-Pack)

SKU: POLOLU-2091 Brand: Pololu

These 1/2"-long hexagonal female-female aluminum standoffs keep parts spaced 0.5 inches (13 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.

$4.25 AUD, inc GST

$3.86 AUD, exc GST

Available with a lead time
Expect dispatch between Jan 02 and Jan 06

Quantity Discounts:

10-25 $3.71 (exc GST)
25+ $3.59 (exc GST)

These F-F (female-female) aluminum standoffs are great for separating stacked components or chassis tiers and can be used as an alternative to Pololu's 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 typeSelect 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	–

Pololu 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)

Aluminum Standoff: 1/2" Length, 4-40 Thread, M-F (4-Pack)

Aluminum Standoff: 1" Length, 4-40 Thread, M-F (4-Pack)

Dimensions

Length:	0.5 in

General specifications

Gender:	Female-Female
Thread type:	4-40

Product Comments

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Adamstown
NSW, 2289
Australia

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