Standoffs & Spacers – Mouser United Kingdom

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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 (GBP) 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: £0.646 81,972In 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	81,972In Stock 140,000On Order On Order Ship Dates Mfr. No: SMTSO-M1.6-3ET Stock: 81,972 Can Dispatch Immediately On Order: 20,000 Pending 62,000 Expected 09/12/2026 58,000 Expected 04/01/2027 Factory Lead Time: 10 Weeks	Cut Tape £0.646 £0.485 £0.377 £0.355 Reel £0.336 View £0.347 £0.325 £0.313 £0.308 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: £0.646 81,778In 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	81,778In Stock	Cut Tape £0.646 £0.486 £0.378 £0.357 Reel £0.337 View £0.349 £0.326 £0.313 £0.309 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-4.2-6ET PEM 1: £1.05 25,924In Stock	Mfr. Part No. SMTSO-4.2-6ET Mouser Part No 153-SMTSO-4.2-6ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	25,924In Stock	Cut Tape £1.05 £0.773 £0.606 Reel £0.571 £0.56 View £0.54 £0.522 £0.503 Quote MouseReel Available	Min.: 1 Mult.: 1 : 500	Standoffs	SMT		0.187 in			Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M2-4ET PEM 1: £0.89 36,748In 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	36,748In Stock	Cut Tape £0.89 £0.668 £0.519 £0.491 Reel £0.48 View £0.464 £0.448 £0.432 £0.425	Min.: 1 Mult.: 1 : 900	Standoffs	SMT	M2	4 mm	Steel	Zinc	Reel, Cut Tape
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-4ET PEM 1: £0.818 76,952In 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	76,952In Stock	Cut Tape £0.818 £0.612 £0.476 £0.449 Reel £0.439 View £0.424 £0.41 £0.395 £0.388 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Standoffs	SMT	4-40	0.125 in	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers MOUNT STANDOFF SMTSO-M1.6-2ET PEM 1: £0.646 48,118In Stock 185,790On Order	Mfr. Part No. SMTSO-M1.6-2ET Mouser Part No 153-SMTSO-M1.6-2ET	PEM	Standoffs & Spacers MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	48,118In Stock 185,790On Order On Order Ship Dates Mfr. No: SMTSO-M1.6-2ET Stock: 48,118 Can Dispatch Immediately On Order: 2,500 Expected 06/11/2026 80,790 Expected 11/11/2026 102,500 Expected 16/11/2026 Factory Lead Time: 20 Weeks	Cut Tape £0.646 £0.484 £0.376 £0.355 Reel £0.335 View £0.347 £0.324 £0.313 £0.308 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Standoffs	SMT	M1.6	2 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M2-8ET PEM 1: £1.15 31,947In Stock 25,125Expected 27/01/2027	Mfr. Part No. SMTSO-M2-8ET Mouser Part No 153-SMTSO-M2-8ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	31,947In Stock 25,125Expected 27/01/2027	Cut Tape £1.15 £0.856 £0.671 Reel £0.633 £0.62 View £0.598 £0.577 £0.557 Quote MouseReel Available	Min.: 1 Mult.: 1 : 375	Standoffs	SMT	M2	8 mm			Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-2ET PEM 1: £0.638 109,467In Stock 76,694Expected 11/11/2026	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	109,467In Stock 76,694Expected 11/11/2026	Cut Tape £0.638 £0.481 £0.375 £0.353 Reel £0.333 View £0.346 £0.322 £0.311 £0.306 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: £0.638 152,786In Stock 280,500Expected 23/11/2026	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	152,786In Stock 280,500Expected 23/11/2026	Cut Tape £0.638 £0.481 £0.375 £0.353 Reel £0.333 View £0.346 £0.322 £0.311 £0.306 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: £0.803 154,327In Stock 123,300Expected 27/01/2027	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	154,327In Stock 123,300Expected 27/01/2027	Cut Tape £0.803 £0.603 £0.47 £0.443 Reel £0.432 View £0.418 £0.404 £0.389 £0.383 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: £0.743 43,751In 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	43,751In Stock	Cut Tape £0.743 £0.559 £0.435 £0.41 Reel £0.401 View £0.388 £0.375 £0.361 £0.356 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: £0.863 54,249In 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	54,249In Stock	Cut Tape £0.863 £0.645 £0.502 £0.474 Reel £0.464 View £0.448 £0.432 £0.416 £0.41 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: £1.20 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 £1.20 £0.89 £0.698 Reel £0.657 £0.643 View £0.622 £0.60 £0.579 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: £0.78 35,001In Stock 25,500Expected 21/12/2026	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	35,001In Stock 25,500Expected 21/12/2026	Cut Tape £0.78 £0.583 £0.453 £0.428 Reel £0.405 View £0.418 £0.39 £0.377 £0.371 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: £0.882 29,989In Stock 23,400Expected 23/12/2026	Mfr. Part No. SMTSO-M25-4ET Mouser Part No 153-SMTSO-M25-4ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF, M2.5 Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	29,989In Stock 23,400Expected 23/12/2026	Cut Tape £0.882 £0.657 £0.512 £0.483 Reel £0.471 View £0.456 £0.44 £0.424 £0.418 MouseReel Available	Min.: 1 Mult.: 1 : 900	Standoffs	SMT	M2.5	4 mm	Steel	Zinc	Reel, Cut Tape, MouseReel
Standoffs & Spacers SMTSO-080-2ET PEM 1: £0.661 39,254In Stock 104,400Expected 10/03/2027	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	39,254In Stock 104,400Expected 10/03/2027	Cut Tape £0.661 £0.489 £0.381 £0.359 Reel £0.34 View £0.351 £0.327 £0.315 £0.31 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: £0.759 88,171In Stock 465,000On 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	88,171In Stock 465,000On Order On Order Ship Dates Mfr. No: SMTSO-3.6-3ET Stock: 88,171 Can Dispatch Immediately On Order: 76,000 Expected 06/11/2026 36,000 Expected 11/11/2026 135,000 Expected 05/01/2027 216,000 Expected 24/03/2027 2,000 TBD Factory Lead Time: 23 Weeks	Cut Tape £0.759 £0.569 £0.443 £0.417 Reel £0.409 View £0.395 £0.382 £0.368 £0.362 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: £0.849 63,081In Stock 73,450Expected 24/11/2026	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	63,081In Stock 73,450Expected 24/11/2026	Cut Tape £0.849 £0.629 £0.49 Reel £0.462 £0.451 View £0.437 £0.421 £0.406 £0.40 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: £0.978 44,301In Stock 56,620Expected 11/11/2026	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	44,301In Stock 56,620Expected 11/11/2026	Cut Tape £0.978 £0.732 £0.569 Reel £0.537 £0.525 View £0.507 £0.491 £0.472 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: £0.908 30,580In Stock 33,000Expected 28/12/2026	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	30,580In Stock 33,000Expected 28/12/2026	Cut Tape £0.908 £0.678 £0.528 £0.498 Reel £0.487 View £0.471 £0.455 £0.438 £0.432 MouseReel Available	Min.: 1 Mult.: 1 : 1,100	Standoffs	SMT	8-32	0.062 in			Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT NUT STANDOFF SPACER SMTSO-M2-10ET PEM 1: £1.12 26,621In Stock	Mfr. Part No. SMTSO-M2-10ET Mouser Part No 153-SMTSO-M2-10ET	PEM	Standoffs & Spacers SURFACE MOUNT NUT STANDOFF SPACER Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	26,621In Stock	Cut Tape £1.12 £0.834 £0.646 Reel £0.608 £0.595 View £0.575 £0.555 £0.535 Quote	Min.: 1 Mult.: 1 : 300	Standoffs	SMT	M2	10 mm			Reel, Cut Tape
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-M2-6ET PEM 1: £1.14 30,690In 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	30,690In Stock	Cut Tape £1.14 £0.849 £0.663 Reel £0.625 £0.611 View £0.591 £0.571 £0.55 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: £1.20 96,193In Stock	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	96,193In Stock	Cut Tape £1.20 £0.89 £0.695 £0.656 Reel £0.641 View £0.62 £0.598 £0.576 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: £0.773 215,364In Stock 77,183Expected 11/11/2026	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	215,364In Stock 77,183Expected 11/11/2026	Cut Tape £0.773 £0.582 £0.453 £0.427 Reel £0.418 View £0.404 £0.389 £0.376 £0.37 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: £1.04 25,654In Stock 24,750Expected 06/11/2026	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	25,654In Stock 24,750Expected 06/11/2026	Cut Tape £1.04 £0.773 £0.601 £0.566 Reel £0.553 View £0.534 £0.516 £0.498 Quote MouseReel Available	Min.: 1 Mult.: 1 : 750	Standoffs	SMT	M3	5 mm			Reel, Cut Tape, MouseReel

SMTSO ReelFast Steel Nuts & Spacers/Standoffs

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SMTSO ReelFast Steel Nuts & Spacers/Standoffs

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