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 82,434In 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	82,434In Stock 140,000On Order On Order Ship Dates Mfr. #: SMTSO-M1.6-3ET Stock: 82,434 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-M2-3ET PEM 1: $1.10 83,520In 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	83,520In 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 42,469In 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	42,469In 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 24,529In 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	24,529In Stock 75,400On Order On Order Ship Dates Mfr. #: SMTSO-M25-6ET Stock: 24,529 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, 4-40 SMTSO-440-2ET PEM 1: $0.85 85,077In 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	85,077In 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: $0.85 173,098In 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	173,098In 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: $1.07 155,334In 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	155,334In 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 45,071In 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	45,071In 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 SMTSO-080-2ET PEM 1: $0.88 39,804In 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	39,804In 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 67,831In Stock 486,000On 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	67,831In Stock 486,000On Order On Order Ship Dates Mfr. #: SMTSO-3.6-3ET Stock: 67,831 Can Ship Immediately On Order: 8,000 Expected 11/4/2026 121,000 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 $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 SMTSO-3.6-6ET PEM 1: $1.13 32,360In Stock 105,650On Order	Mfr. Part # SMTSO-3.6-6ET Mouser Part # 153-SMTSO-3.6-6ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	32,360In Stock 105,650On Order On Order Ship Dates Mfr. #: SMTSO-3.6-6ET Stock: 32,360 Can Ship Immediately On Order: 32,200 Expected 10/28/2026 73,450 Expected 11/24/2026 Factory Lead-Time: 13 Weeks	Cut Tape $1.13 $0.838 $0.652 Reel $0.615 $0.601 View $0.581 $0.561 $0.541 Quote 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: $1.30 42,137In 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	42,137In 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 30,640In 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	30,640In 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 30,854In 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	30,854In 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-M25-5ET PEM 1: $1.60 59,700In Stock 45,943On Order	Mfr. Part # SMTSO-M25-5ET Mouser Part # 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. #: SMTSO-M25-5ET Stock: 59,700 Can Ship Immediately On Order: 250 Pending 45,693 Expected 10/28/2026 Factory Lead-Time: 13 Weeks	Cut Tape $1.60 $1.19 $0.926 $0.873 Reel $0.853 View $0.825 $0.796 $0.768 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: $1.03 204,788In 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	204,788In 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
Standoffs & Spacers SURFACE MOUNT NUT STANDOFF SPACER SMTSO-M3-5ET PEM 1: $1.38 25,774In Stock 24,750Expected 11/6/2026	Mfr. Part # SMTSO-M3-5ET Mouser Part # 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 $1.38 $1.03 $0.80 $0.754 Reel $0.736 View $0.712 $0.687 $0.663 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: $1.81 52,354In Stock 2,400On Order	Mfr. Part # SMTSO-M4-10ET Mouser Part # 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 $1.81 $1.35 $1.05 Reel $0.991 $0.969 View $0.937 $0.905 $0.872 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: $1.27 74,024In 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	74,024In Stock 81,300On Order On Order Ship Dates Mfr. #: SMTSO-440-12ET Stock: 74,024 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-M2-2ET PEM 1: $0.86 37,897In Stock 232,190On 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	37,897In Stock 232,190On Order On Order Ship Dates Mfr. #: SMTSO-M2-2ET Stock: 37,897 Can Ship 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 $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 47,820In 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	47,820In Stock 154,050On Order On Order Ship Dates Mfr. #: SMTSO-M3-6ET Stock: 47,820 Can Ship Immediately On Order: 650 Pending 69,550 Expected 11/12/2026 83,850 Expected 2/3/2027 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 77,805In 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	77,805In 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-256-4ET PEM 1: $1.15 55,066In 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	55,066In 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

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