Standoffs & Spacers – Mouser Liechtenstein

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SMTSO ReelFast Steel Nuts & Spacers/Standoffs

PEM SMTSO™ ReelFast® Steel Nuts and Spacers/Standoffs mount on PC boards in the same manner and at the same time as other surface-mount components, reducing product handling as well as the risk of board damage. The SMTSO modules simply become another board component. This process also results in faster assembly. They are available in a thread size as small as M1 / #0 to #80 and a minimum sheet thickness of 0.5mm / .020". PEM SMTSO ReelFast Steel Nuts and Spacers/Standoffs are RoHS compliant and are available in threaded or unthreaded versions.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CHF) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Thread Size	Length	Material	Plating	Packaging
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M1.6-3ET PEM 1: CHF 0.693 82’434In Stock 140’000On Order	Mfr. Part No. SMTSO-M1.6-3ET Mouser Part No 153-SMTSO-M1.6-3ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	82’434In Stock 140’000On Order On Order Ship Dates Mfr. No: SMTSO-M1.6-3ET Stock: 82’434 Can Dispatch Immediately On Order: 20’000 Pending 62’000 Expected 12/9/2026 58’000 Expected 1/4/2027 Factory Lead Time: 10 Weeks	Cut Tape CHF 0.693 CHF 0.519 CHF 0.404 CHF 0.381 Reel CHF 0.36 View CHF 0.373 CHF 0.348 CHF 0.336 CHF 0.33 MouseReel Available	Min.: 1 Mult.: 1 : 2’000	Standoffs	SMT	M1.6	3 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M2-3ET PEM 1: CHF 0.885 83’520In Stock	Mfr. Part No. SMTSO-M2-3ET Mouser Part No 153-SMTSO-M2-3ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	83’520In Stock	Cut Tape CHF 0.885 CHF 0.657 CHF 0.517 Reel CHF 0.439 CHF 0.423 CHF 0.417 MouseReel Available	Min.: 1 Mult.: 1 : 1’000	Standoffs	SMT	M2	3 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF, M2.5 SMTSO-M25-3ET PEM 1: CHF 0.87 42’469In Stock 70’000Expected 11/12/2026	Mfr. Part No. SMTSO-M25-3ET Mouser Part No 153-SMTSO-M25-3ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, M2.5 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	42’469In Stock 70’000Expected 11/12/2026	Cut Tape CHF 0.87 CHF 0.654 CHF 0.509 CHF 0.48 Reel CHF 0.469 View CHF 0.454 CHF 0.438 CHF 0.423 CHF 0.417 MouseReel Available	Min.: 1 Mult.: 1 : 1’000	Standoffs	SMT	M2.5	3 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF, M2.5 SMTSO-M25-6ET PEM 1: CHF 1.06 24’529In Stock 75’400On Order	Mfr. Part No. SMTSO-M25-6ET Mouser Part No 153-SMTSO-M25-6ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, M2.5 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	24’529In Stock 75’400On Order On Order Ship Dates Mfr. No: SMTSO-M25-6ET Stock: 24’529 Can Dispatch Immediately On Order: 30’550 Expected 11/23/2026 44’850 Expected 1/11/2027 Factory Lead Time: 13 Weeks	Cut Tape CHF 1.06 CHF 0.792 CHF 0.617 Reel CHF 0.581 CHF 0.568 View CHF 0.549 CHF 0.531 CHF 0.511 Quote MouseReel Available	Min.: 1 Mult.: 1 : 650	Standoffs	SMT	M2.5	6 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-2ET PEM 1: CHF 0.684 85’077In Stock 105’000Expected 11/6/2026	Mfr. Part No. SMTSO-440-2ET Mouser Part No 153-SMTSO-440-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	85’077In Stock 105’000Expected 11/6/2026	Cut Tape CHF 0.684 CHF 0.516 CHF 0.402 CHF 0.378 Reel CHF 0.358 View CHF 0.371 CHF 0.345 CHF 0.333 CHF 0.329 MouseReel Available	Min.: 1 Mult.: 1 : 1’500	Standoffs	SMT	4-40	0.062 in	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M3-2ET PEM 1: CHF 0.684 173’098In Stock 280’500Expected 11/23/2026	Mfr. Part No. SMTSO-M3-2ET Mouser Part No 153-SMTSO-M3-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	173’098In Stock 280’500Expected 11/23/2026	Cut Tape CHF 0.684 CHF 0.516 CHF 0.402 CHF 0.378 Reel CHF 0.358 View CHF 0.371 CHF 0.345 CHF 0.333 CHF 0.329 MouseReel Available	Min.: 1 Mult.: 1 : 1’500	Standoffs	SMT	M3	2 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SMTSO, M3, THRU-HOLE, CRS, ET SMTSO-M3-4ET PEM 1: CHF 0.861 155’327In Stock 123’300Expected 1/27/2027	Mfr. Part No. SMTSO-M3-4ET Mouser Part No 153-SMTSO-M3-4ET	PEM	Standoffs & Spacers SMTSO, M3, THRU-HOLE, CRS, ET Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	155’327In Stock 123’300Expected 1/27/2027	Cut Tape CHF 0.861 CHF 0.647 CHF 0.504 CHF 0.475 Reel CHF 0.463 View CHF 0.448 CHF 0.433 CHF 0.417 CHF 0.411 MouseReel Available	Min.: 1 Mult.: 1 : 900	Standoffs	SMT	M3	4 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M4-2ET PEM 1: CHF 0.797 44’871In Stock	Mfr. Part No. SMTSO-M4-2ET Mouser Part No 153-SMTSO-M4-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	44’871In Stock	Cut Tape CHF 0.797 CHF 0.599 CHF 0.466 CHF 0.44 Reel CHF 0.43 View CHF 0.416 CHF 0.402 CHF 0.388 CHF 0.382 MouseReel Available	Min.: 1 Mult.: 1 : 1’100	Standoffs	SMT	M4	2 mm	Steel	Tin	Reel, Cut Tape, MouseReel
Standoffs & Spacers SMTSO-080-2ET PEM 1: CHF 0.709 39’804In Stock 104’400Expected 3/10/2027	Mfr. Part No. SMTSO-080-2ET Mouser Part No 153-SMTSO-080-2ET	PEM	Standoffs & Spacers Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	39’804In Stock 104’400Expected 3/10/2027	Cut Tape CHF 0.709 CHF 0.524 CHF 0.408 CHF 0.385 Reel CHF 0.364 View CHF 0.376 CHF 0.35 CHF 0.338 CHF 0.332 MouseReel Available	Min.: 1 Mult.: 1 : 2’900	Standoffs	SMT	0-80	0.062 in	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-3.6-3ET PEM 1: CHF 0.813 67’831In Stock 486’000On Order	Mfr. Part No. SMTSO-3.6-3ET Mouser Part No 153-SMTSO-3.6-3ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	67’831In Stock 486’000On Order On Order Ship Dates Mfr. No: SMTSO-3.6-3ET Stock: 67’831 Can Dispatch Immediately On Order: 23’000 Expected 11/4/2026 106’000 Expected 11/6/2026 135’000 Expected 1/5/2027 216’000 Expected 3/15/2027 6’000 TBD Factory Lead Time: 21 Weeks	Cut Tape CHF 0.813 CHF 0.61 CHF 0.475 CHF 0.447 Reel CHF 0.438 View CHF 0.423 CHF 0.409 CHF 0.394 CHF 0.388 MouseReel Available	Min.: 1 Mult.: 1 : 1’000	Standoffs	SMT			Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-3.6-6ET PEM 1: CHF 0.91 32’210In Stock 105’650On Order	Mfr. Part No. SMTSO-3.6-6ET Mouser Part No 153-SMTSO-3.6-6ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	32’210In Stock 105’650On Order On Order Ship Dates Mfr. No: SMTSO-3.6-6ET Stock: 32’210 Can Dispatch Immediately On Order: 32’200 Expected 10/28/2026 73’450 Expected 11/24/2026 Factory Lead Time: 13 Weeks	Cut Tape CHF 0.91 CHF 0.675 CHF 0.525 Reel CHF 0.495 CHF 0.484 View CHF 0.468 CHF 0.451 CHF 0.435 CHF 0.429 MouseReel Available	Min.: 1 Mult.: 1 : 650	Standoffs	SMT		0.187 in	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-8ET PEM 1: CHF 1.05 42’137In Stock 59’800Expected 11/4/2026	Mfr. Part No. SMTSO-440-8ET Mouser Part No 153-SMTSO-440-8ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	42’137In Stock 59’800Expected 11/4/2026	Cut Tape CHF 1.05 CHF 0.784 CHF 0.61 Reel CHF 0.576 CHF 0.563 View CHF 0.544 CHF 0.526 CHF 0.506 Quote MouseReel Available	Min.: 1 Mult.: 1 : 650	Standoffs	SMT	4-40	0.25 in	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-832-2ET PEM 1: CHF 0.973 30’640In Stock 33’000Expected 12/28/2026	Mfr. Part No. SMTSO-832-2ET Mouser Part No 153-SMTSO-832-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	30’640In Stock 33’000Expected 12/28/2026	Cut Tape CHF 0.973 CHF 0.727 CHF 0.566 CHF 0.534 Reel CHF 0.522 View CHF 0.505 CHF 0.488 CHF 0.47 CHF 0.463 MouseReel Available	Min.: 1 Mult.: 1 : 1’100	Standoffs	SMT	8-32	0.062 in			Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M2-6ET PEM 1: CHF 1.23 30’854In Stock	Mfr. Part No. SMTSO-M2-6ET Mouser Part No 153-SMTSO-M2-6ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	30’854In Stock	Cut Tape CHF 1.23 CHF 0.91 CHF 0.71 Reel CHF 0.67 CHF 0.655 View CHF 0.634 CHF 0.612 CHF 0.59 Quote MouseReel Available	Min.: 1 Mult.: 1 : 650	Standoffs	SMT	M2	6 mm			Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M25-5ET PEM 1: CHF 1.29 59’700In Stock 45’943On Order	Mfr. Part No. SMTSO-M25-5ET Mouser Part No 153-SMTSO-M25-5ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	59’700In Stock 45’943On Order On Order Ship Dates Mfr. No: SMTSO-M25-5ET Stock: 59’700 Can Dispatch Immediately On Order: 250 Pending 45’693 Expected 10/28/2026 Factory Lead Time: 13 Weeks	Cut Tape CHF 1.29 CHF 0.955 CHF 0.745 CHF 0.703 Reel CHF 0.687 View CHF 0.665 CHF 0.641 CHF 0.618 Quote MouseReel Available	Min.: 1 Mult.: 1 : 750	Standoffs	SMT	M2.5	5 mm			Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M3-3ET PEM 1: CHF 0.829 203’688In Stock 100’000Expected 11/4/2026	Mfr. Part No. SMTSO-M3-3ET Mouser Part No 153-SMTSO-M3-3ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	203’688In Stock 100’000Expected 11/4/2026	Cut Tape CHF 0.829 CHF 0.624 CHF 0.486 CHF 0.458 Reel CHF 0.448 View CHF 0.433 CHF 0.417 CHF 0.403 CHF 0.397 MouseReel Available	Min.: 1 Mult.: 1 : 1’000	Standoffs	SMT	M3	3 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT NUT STANDOFF SPACER SMTSO-M3-5ET PEM 1: CHF 1.11 25’774In Stock 24’750Expected 11/6/2026	Mfr. Part No. SMTSO-M3-5ET Mouser Part No 153-SMTSO-M3-5ET	PEM	Standoffs & Spacers SURFACE MOUNT NUT STANDOFF SPACER Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	25’774In Stock 24’750Expected 11/6/2026	Cut Tape CHF 1.11 CHF 0.829 CHF 0.644 CHF 0.607 Reel CHF 0.592 View CHF 0.573 CHF 0.553 CHF 0.534 Quote MouseReel Available	Min.: 1 Mult.: 1 : 750	Standoffs	SMT	M3	5 mm			Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M4-10ET PEM 1: CHF 1.46 52’354In Stock 2’400On Order	Mfr. Part No. SMTSO-M4-10ET Mouser Part No 153-SMTSO-M4-10ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	52’354In Stock 2’400On Order	Cut Tape CHF 1.46 CHF 1.09 CHF 0.845 Reel CHF 0.797 CHF 0.78 View CHF 0.754 CHF 0.728 CHF 0.702 Quote MouseReel Available	Min.: 1 Mult.: 1 : 300	Standoffs	SMT	M4	10 mm			Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-440-12ET PEM 1: CHF 1.02 74’024In Stock 81’300On Order	Mfr. Part No. SMTSO-440-12ET Mouser Part No 153-SMTSO-440-12ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	74’024In Stock 81’300On Order On Order Ship Dates Mfr. No: SMTSO-440-12ET Stock: 74’024 Can Dispatch Immediately On Order: 300 Pending 81’000 Expected 11/6/2026 Factory Lead Time: 13 Weeks	Cut Tape CHF 1.02 CHF 0.765 CHF 0.595 Reel CHF 0.561 CHF 0.549 View CHF 0.531 CHF 0.512 CHF 0.493 Quote MouseReel Available	Min.: 1 Mult.: 1 : 300	Standoffs	SMT	4-40	0.375 in	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M2-2ET PEM 1: CHF 0.693 37’897In Stock 232’190On Order	Mfr. Part No. SMTSO-M2-2ET Mouser Part No 153-SMTSO-M2-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	37’897In Stock 232’190On Order On Order Ship Dates Mfr. No: SMTSO-M2-2ET Stock: 37’897 Can Dispatch Immediately On Order: 80’690 Expected 10/27/2026 51’000 Expected 11/25/2026 100’500 Expected 12/9/2026 Factory Lead Time: 13 Weeks	Cut Tape CHF 0.693 CHF 0.514 CHF 0.40 CHF 0.377 Reel CHF 0.356 View CHF 0.37 CHF 0.344 CHF 0.331 CHF 0.327 MouseReel Available	Min.: 1 Mult.: 1 : 1’500	Standoffs	SMT	M2	2 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SMT STANDOFF, M3 SMTSO-M3-6ET PEM 1: CHF 0.983 47’570In Stock 154’050On Order	Mfr. Part No. SMTSO-M3-6ET Mouser Part No 153-SMTSO-M3-6ET	PEM	Standoffs & Spacers SMT STANDOFF, M3 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	47’570In Stock 154’050On Order On Order Ship Dates Mfr. No: SMTSO-M3-6ET Stock: 47’570 Can Dispatch Immediately On Order: 650 Pending 69’550 Expected 11/12/2026 83’850 Expected 2/3/2027 Factory Lead Time: 13 Weeks	Cut Tape CHF 0.983 CHF 0.739 CHF 0.575 Reel CHF 0.542 CHF 0.53 View CHF 0.512 CHF 0.494 CHF 0.476 Quote MouseReel Available	Min.: 1 Mult.: 1 : 650	Standoffs	SMT	M3	6 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-4ET PEM 1: CHF 0.877 77’805In Stock	Mfr. Part No. SMTSO-440-4ET Mouser Part No 153-SMTSO-440-4ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	77’805In Stock	Cut Tape CHF 0.877 CHF 0.656 CHF 0.51 CHF 0.481 Reel CHF 0.471 View CHF 0.455 CHF 0.44 CHF 0.423 CHF 0.417 MouseReel Available	Min.: 1 Mult.: 1 : 1’000	Standoffs	SMT	4-40	0.125 in	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-256-4ET PEM 1: CHF 0.926 55’066In Stock	Mfr. Part No. SMTSO-256-4ET Mouser Part No 153-SMTSO-256-4ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	55’066In Stock	Cut Tape CHF 0.926 CHF 0.692 CHF 0.538 CHF 0.508 Reel CHF 0.497 View CHF 0.48 CHF 0.463 CHF 0.446 CHF 0.44 MouseReel Available	Min.: 1 Mult.: 1 : 1’000	Standoffs	SMT	2-56	0.125 in	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-632-12ET PEM 1: CHF 1.28 22’116In Stock	Mfr. Part No. SMTSO-632-12ET Mouser Part No 153-SMTSO-632-12ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	22’116In Stock	Cut Tape CHF 1.28 CHF 0.955 CHF 0.748 Reel CHF 0.705 CHF 0.69 View CHF 0.666 CHF 0.643 CHF 0.621 Quote	Min.: 1 Mult.: 1 : 300	Standoffs	SMT	6-32	0.375 in	Steel	Zinc	Reel, Cut Tape
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-632-2ET PEM 1: CHF 0.837 35’036In Stock 25’500Expected 12/21/2026	Mfr. Part No. SMTSO-632-2ET Mouser Part No 153-SMTSO-632-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	35’036In Stock 25’500Expected 12/21/2026	Cut Tape CHF 0.837 CHF 0.625 CHF 0.486 CHF 0.459 Reel CHF 0.434 View CHF 0.448 CHF 0.418 CHF 0.404 CHF 0.398 MouseReel Available	Min.: 1 Mult.: 1 : 1’500	Standoffs	SMT	6-32	0.062 in	Steel	Zinc	Reel, Cut Tape, MouseReel

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