Standoffs & Spacers – Mouser South Africa

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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: $0.861 82,809In 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	82,809In Stock 140,000On Order On Order Ship Dates Mfr. No: SMTSO-M1.6-3ET Stock: 82,809 Can Dispatch Immediately On Order: 20,000 Pending 62,000 Expected 2026/12/09 58,000 Expected 2027/01/04 Factory Lead Time: 10 Weeks	Cut Tape $0.861 $0.645 $0.502 $0.473 Reel $0.448 View $0.463 $0.433 $0.418 $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, 2-56 SMTSO-256-2ET PEM 1: $0.861 87,603In Stock	Mfr. Part No. SMTSO-256-2ET Mouser Part No 153-SMTSO-256-2ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, 2-56 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	87,603In Stock	Cut Tape $0.861 $0.648 $0.504 $0.476 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 No. SMTSO-M2-4ET Mouser Part No 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 $0.654 Reel $0.64 View $0.618 $0.597 $0.576 $0.566	Min.: 1 Mult.: 1 : 900	Standoffs	SMT	M2	4 mm	Steel	Zinc	Reel, Cut Tape
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M2-3ET PEM 1: $1.10 83,737In 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	83,737In Stock	Cut Tape $1.10 $0.816 $0.642 Reel $0.545 $0.526 $0.518 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 2026/11/12	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	42,479In Stock 70,000Expected 2026/11/12	Cut Tape $1.08 $0.813 $0.633 $0.597 Reel $0.583 View $0.564 $0.544 $0.526 $0.518 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 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	24,533In Stock 75,400On Order On Order Ship Dates Mfr. No: SMTSO-M25-6ET Stock: 24,533 Can Dispatch Immediately On Order: 30,550 Expected 2026/11/23 44,850 Expected 2027/01/11 Factory Lead Time: 13 Weeks	Cut Tape $1.31 $0.984 $0.766 Reel $0.722 $0.706 View $0.683 $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 SMTSO-080-2ET PEM 1: $0.88 40,126In Stock 104,400Expected 2027/03/10	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	40,126In Stock 104,400Expected 2027/03/10	Cut Tape $0.88 $0.651 $0.507 $0.478 Reel $0.452 View $0.468 $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 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	63,831In Stock 274,000On Order On Order Ship Dates Mfr. No: SMTSO-3.6-3ET Stock: 63,831 Can Dispatch Immediately On Order: 133,000 Expected 2026/11/06 135,000 Expected 2027/01/05 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 $0.483 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 2026/11/06	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	43,677In Stock 59,800Expected 2026/11/06	Cut Tape $1.30 $0.975 $0.758 Reel $0.715 $0.699 View $0.676 $0.654 $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 2026/12/28	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	30,865In Stock 33,000Expected 2026/12/28	Cut Tape $1.21 $0.904 $0.704 $0.664 Reel $0.649 View $0.627 $0.606 $0.584 $0.576 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 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	31,684In Stock	Cut Tape $1.52 $1.13 $0.883 Reel $0.833 $0.814 View $0.787 $0.761 $0.733 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: $1.03 205,153In Stock 100,000Expected 2026/11/16	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	205,153In Stock 100,000Expected 2026/11/16	Cut Tape $1.03 $0.776 $0.604 $0.569 Reel $0.557 View $0.538 $0.519 $0.501 $0.493 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 25,779In Stock 24,750Expected 2026/11/06	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	25,779In Stock 24,750Expected 2026/11/06	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 52,419In 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	52,419In 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 74,344In 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	74,344In Stock 81,300On Order On Order Ship Dates Mfr. No: SMTSO-440-12ET Stock: 74,344 Can Dispatch Immediately On Order: 300 Pending 81,000 Expected 2026/11/06 Factory Lead Time: 13 Weeks	Cut Tape $1.27 $0.95 $0.74 Reel $0.697 $0.683 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 2026/11/24	Mfr. Part No. SMTSO-M1.6-1ET Mouser Part No 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 2026/11/24	Cut Tape $0.93 $0.695 $0.541 $0.511 Reel $0.483 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: $0.861 42,410In Stock 237,040On 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	42,410In Stock 237,040On Order On Order Ship Dates Mfr. No: SMTSO-M2-2ET Stock: 42,410 Can Dispatch Immediately On Order: 85,540 Expected 2026/10/27 51,000 Expected 2026/11/25 100,500 Expected 2026/12/09 Factory Lead Time: 13 Weeks	Cut Tape $0.861 $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 70,200On 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	48,004In Stock 70,200On Order On Order Ship Dates Mfr. No: SMTSO-M3-6ET Stock: 48,004 Can Dispatch Immediately On Order: 650 Pending 69,550 Expected 2026/11/12 Factory Lead Time: 13 Weeks	Cut Tape $1.22 $0.918 $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-440-2ET PEM 1: $0.85 87,279In Stock 105,000Expected 2026/11/06	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	87,279In Stock 105,000Expected 2026/11/06	Cut Tape $0.85 $0.641 $0.499 $0.47 Reel $0.444 View $0.461 $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: $0.85 185,365In Stock 280,500Expected 2026/11/23	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	185,365In Stock 280,500Expected 2026/11/23	Cut Tape $0.85 $0.641 $0.499 $0.47 Reel $0.444 View $0.461 $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: $1.07 163,874In Stock 123,300Expected 2027/01/27	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	163,874In Stock 123,300Expected 2027/01/27	Cut Tape $1.07 $0.804 $0.626 $0.59 Reel $0.576 View $0.557 $0.538 $0.519 $0.511 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 45,360In 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	45,360In Stock	Cut Tape $0.99 $0.744 $0.579 $0.547 Reel $0.534 View $0.516 $0.499 $0.481 $0.475 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-256-4ET PEM 1: $1.15 56,266In 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	56,266In Stock	Cut Tape $1.15 $0.859 $0.669 $0.632 Reel $0.618 View $0.597 $0.576 $0.555 $0.547 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 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 $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 2026/12/21	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 2026/12/21	Cut Tape $1.04 $0.777 $0.604 $0.57 Reel $0.54 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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