Standoffs & Spacers – Mouser Vietnam

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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 (USD) 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: $0.86 82,809In Stock 140,000On Order	Mfr. Part # SMTSO-M1.6-3ET Mouser Part # 153-SMTSO-M1.6-3ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	82,809In Stock 140,000On Order On Order Ship Dates Mfr. #: SMTSO-M1.6-3ET Stock: 82,809 Can Ship 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 $0.86 $0.645 $0.502 $0.473 Reel $0.448 View $0.463 $0.432 $0.417 $0.411 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-256-4ET PEM 1: $1.15 55,266In Stock	Mfr. Part # SMTSO-256-4ET Mouser Part # 153-SMTSO-256-4ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	55,266In Stock	Cut Tape $1.15 $0.859 $0.669 $0.631 Reel $0.617 View $0.596 $0.576 $0.555 Quote 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: $1.59 22,116In Stock	Mfr. Part # SMTSO-632-12ET Mouser Part # 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 $1.59 $1.19 $0.929 Reel $0.876 $0.857 View $0.828 $0.799 $0.771 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: $1.04 35,036In Stock 25,500Expected 12/21/2026	Mfr. Part # SMTSO-632-2ET Mouser Part # 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 $1.04 $0.777 $0.604 $0.57 Reel $0.539 View $0.557 $0.52 $0.502 $0.494 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	Standoffs	SMT	6-32	0.062 in	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF, M2.5 SMTSO-M25-4ET PEM 1: $1.18 30,074In Stock 23,400Expected 12/23/2026	Mfr. Part # SMTSO-M25-4ET Mouser Part # 153-SMTSO-M25-4ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, M2.5 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	30,074In Stock 23,400Expected 12/23/2026	Cut Tape $1.18 $0.876 $0.682 $0.643 Reel $0.628 View $0.607 $0.586 $0.565 Quote MouseReel Available	Min.: 1 Mult.: 1 : 900	Standoffs	SMT	M2.5	4 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-2ET PEM 1: $0.85 87,214In Stock 105,000Expected 11/6/2026	Mfr. Part # SMTSO-440-2ET Mouser Part # 153-SMTSO-440-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	87,214In Stock 105,000Expected 11/6/2026	Cut Tape $0.85 $0.641 $0.499 $0.47 Reel $0.444 View $0.46 $0.429 $0.414 $0.408 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: $0.85 184,835In Stock 280,500Expected 11/23/2026	Mfr. Part # SMTSO-M3-2ET Mouser Part # 153-SMTSO-M3-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	184,835In Stock 280,500Expected 11/23/2026	Cut Tape $0.85 $0.641 $0.499 $0.47 Reel $0.444 View $0.46 $0.429 $0.414 $0.408 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: $1.07 157,654In Stock 123,300Expected 1/27/2027	Mfr. Part # SMTSO-M3-4ET Mouser Part # 153-SMTSO-M3-4ET	PEM	Standoffs & Spacers SMTSO, M3, THRU-HOLE, CRS, ET Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	157,654In Stock 123,300Expected 1/27/2027	Cut Tape $1.07 $0.803 $0.625 $0.589 Reel $0.576 View $0.557 $0.538 $0.519 Quote 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: $0.99 45,350In Stock	Mfr. Part # SMTSO-M4-2ET Mouser Part # 153-SMTSO-M4-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	45,350In Stock	Cut Tape $0.99 $0.744 $0.579 $0.546 Reel $0.534 View $0.516 $0.499 $0.481 $0.474 MouseReel Available	Min.: 1 Mult.: 1 : 1,100	Standoffs	SMT	M4	2 mm	Steel	Tin	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-440-12ET PEM 1: $1.27 74,304In Stock 81,300On Order	Mfr. Part # SMTSO-440-12ET Mouser Part # 153-SMTSO-440-12ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	74,304In Stock 81,300On Order On Order Ship Dates Mfr. #: SMTSO-440-12ET Stock: 74,304 Can Ship Immediately On Order: 300 Pending 81,000 Expected 11/6/2026 Factory Lead-Time: 13 Weeks	Cut Tape $1.27 $0.95 $0.739 Reel $0.697 $0.682 View $0.659 $0.636 $0.613 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-M1.6-1ET PEM 1: $0.93 34,906In Stock 42,000Expected 11/24/2026	Mfr. Part # SMTSO-M1.6-1ET Mouser Part # 153-SMTSO-M1.6-1ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	34,906In Stock 42,000Expected 11/24/2026	Cut Tape $0.93 $0.695 $0.541 $0.51 Reel $0.482 View $0.499 $0.465 $0.449 $0.442 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	Standoffs	SMT	M1.6	1 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M2-2ET PEM 1: $0.86 42,380In Stock 237,040On Order	Mfr. Part # SMTSO-M2-2ET Mouser Part # 153-SMTSO-M2-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	42,380In Stock 237,040On Order On Order Ship Dates Mfr. #: SMTSO-M2-2ET Stock: 42,380 Can Ship Immediately On Order: 85,540 Expected 10/27/2026 51,000 Expected 11/25/2026 100,500 Expected 12/9/2026 Factory Lead-Time: 13 Weeks	Cut Tape $0.86 $0.638 $0.497 $0.469 Reel $0.442 View $0.459 $0.427 $0.412 $0.406 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: $1.22 48,004In Stock 154,050On Order	Mfr. Part # SMTSO-M3-6ET Mouser Part # 153-SMTSO-M3-6ET	PEM	Standoffs & Spacers SMT STANDOFF, M3 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	48,004In Stock 154,050On Order On Order Ship Dates Mfr. #: SMTSO-M3-6ET Stock: 48,004 Can Ship Immediately On Order: 650 Pending 69,550 Expected 11/12/2026 83,850 Expected 1/15/2027 Factory Lead-Time: 13 Weeks	Cut Tape $1.22 $0.917 $0.714 Reel $0.673 $0.658 View $0.636 $0.614 $0.592 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: $1.09 78,865In Stock	Mfr. Part # SMTSO-440-4ET Mouser Part # 153-SMTSO-440-4ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	78,865In Stock	Cut Tape $1.09 $0.815 $0.634 $0.598 Reel $0.585 View $0.565 $0.546 $0.526 Quote 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-M2-3ET PEM 1: $1.10 83,837In Stock	Mfr. Part # SMTSO-M2-3ET Mouser Part # 153-SMTSO-M2-3ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	83,837In Stock	Cut Tape $1.10 $0.816 $0.642 Reel $0.545 $0.526 Quote Quote 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: $1.08 42,479In Stock 70,000Expected 11/12/2026	Mfr. Part # SMTSO-M25-3ET Mouser Part # 153-SMTSO-M25-3ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, M2.5 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	42,479In Stock 70,000Expected 11/12/2026	Cut Tape $1.08 $0.813 $0.633 $0.596 Reel $0.583 View $0.564 $0.544 $0.525 Quote 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: $1.31 24,533In Stock 75,400On Order	Mfr. Part # SMTSO-M25-6ET Mouser Part # 153-SMTSO-M25-6ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, M2.5 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	24,533In Stock 75,400On Order On Order Ship Dates Mfr. #: SMTSO-M25-6ET Stock: 24,533 Can Ship Immediately On Order: 30,550 Expected 11/23/2026 44,850 Expected 1/11/2027 Factory Lead-Time: 13 Weeks	Cut Tape $1.31 $0.984 $0.766 Reel $0.722 $0.706 View $0.682 $0.659 $0.635 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, 2-56 SMTSO-256-2ET PEM 1: $0.86 86,053In Stock	Mfr. Part # SMTSO-256-2ET Mouser Part # 153-SMTSO-256-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, 2-56 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	86,053In Stock	Cut Tape $0.86 $0.648 $0.504 $0.475 Reel $0.449 View $0.465 $0.434 $0.418 $0.412 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	Standoffs	SMT	2-56	0.062 in	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M2-4ET PEM 1: $1.19 37,951In Stock	Mfr. Part # SMTSO-M2-4ET Mouser Part # 153-SMTSO-M2-4ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	37,951In Stock	Cut Tape $1.19 $0.89 $0.692 $0.653 Reel $0.639 View $0.617 $0.596 $0.575 Quote	Min.: 1 Mult.: 1 : 900	Standoffs	SMT	M2	4 mm	Steel	Zinc	Reel, Cut Tape
Standoffs & Spacers SMTSO-080-2ET PEM 1: $0.88 40,126In Stock 104,400Expected 3/10/2027	Mfr. Part # SMTSO-080-2ET Mouser Part # 153-SMTSO-080-2ET	PEM	Standoffs & Spacers Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	40,126In Stock 104,400Expected 3/10/2027	Cut Tape $0.88 $0.651 $0.507 $0.478 Reel $0.452 View $0.467 $0.435 $0.42 $0.413 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: $1.01 63,831In Stock 274,000On Order	Mfr. Part # SMTSO-3.6-3ET Mouser Part # 153-SMTSO-3.6-3ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	63,831In Stock 274,000On Order On Order Ship Dates Mfr. #: SMTSO-3.6-3ET Stock: 63,831 Can Ship Immediately On Order: 133,000 Expected 11/6/2026 135,000 Expected 1/5/2027 6,000 TBD Factory Lead-Time: 21 Weeks	Cut Tape $1.01 $0.758 $0.59 $0.556 Reel $0.544 View $0.526 $0.508 $0.49 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Standoffs	SMT			Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-8ET PEM 1: $1.30 43,677In Stock 59,800Expected 11/4/2026	Mfr. Part # SMTSO-440-8ET Mouser Part # 153-SMTSO-440-8ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	43,677In Stock 59,800Expected 11/4/2026	Cut Tape $1.30 $0.974 $0.758 Reel $0.715 $0.699 View $0.676 $0.653 $0.629 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: $1.21 30,865In Stock 33,000Expected 12/28/2026	Mfr. Part # SMTSO-832-2ET Mouser Part # 153-SMTSO-832-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	30,865In Stock 33,000Expected 12/28/2026	Cut Tape $1.21 $0.904 $0.704 $0.664 Reel $0.649 View $0.627 $0.606 $0.584 Quote 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: $1.52 31,684In Stock	Mfr. Part # SMTSO-M2-6ET Mouser Part # 153-SMTSO-M2-6ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	31,684In Stock	Cut Tape $1.52 $1.13 $0.883 Reel $0.832 $0.814 View $0.787 $0.76 $0.732 Quote MouseReel Available	Min.: 1 Mult.: 1 : 650	Standoffs	SMT	M2	6 mm			Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M3-3ET PEM 1: $1.03 205,103In Stock 100,000Expected 11/4/2026	Mfr. Part # SMTSO-M3-3ET Mouser Part # 153-SMTSO-M3-3ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	205,103In Stock 100,000Expected 11/4/2026	Cut Tape $1.03 $0.775 $0.604 $0.569 Reel $0.557 View $0.538 $0.519 $0.501 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Standoffs	SMT	M3	3 mm	Steel	Zinc	Reel, Cut Tape, MouseReel

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