Standoffs & Spacers – Mouser Singapore

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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 (SGD) 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: $1.17 82,489In 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	82,489In Stock 140,000On Order On Order Ship Dates Mfr. No: SMTSO-M1.6-3ET Stock: 82,489 Can Dispatch Immediately On Order: 20,000 Pending 62,000 Expected 9/12/2026 58,000 Expected 4/1/2027 Factory Lead Time: 10 Weeks	Cut Tape $1.17 $0.877 $0.683 $0.643 Reel $0.609 View $0.63 $0.588 $0.567 $0.559 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-M25-10ET PEM 1: $2.11 26,578In Stock	Mfr. Part No. SMTSO-M25-10ET Mouser Part No 153-SMTSO-M25-10ET	PEM	Standoffs & Spacers SURFACE MOUNT STANDOFF Learn More about PEM smtso reelfast nuts spacers standoffs	Datasheet	26,578In Stock	Cut Tape $2.11 $1.58 $1.26 Reel $1.07 $1.05 View $1.01 Quote	Min.: 1 Mult.: 1 : 300	Standoffs	SMT	M2.5	10 mm			Reel, Cut Tape
Standoffs & Spacers SURFACE MOUNT STANDOFF, 2-56 SMTSO-256-2ET PEM 1: $1.17 83,753In 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	83,753In Stock	Cut Tape $1.17 $0.881 $0.685 $0.646 Reel $0.611 View $0.632 $0.59 $0.568 $0.56 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: $1.62 37,791In 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	37,791In Stock	Cut Tape $1.62 $1.21 $0.941 $0.888 Reel $0.869 View $0.839 $0.811 $0.782 Quote	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: $1.50 83,820In 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	83,820In Stock	Cut Tape $1.50 $1.11 $0.873 Reel $0.741 $0.715 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: $1.47 42,469In Stock 70,000Expected 12/11/2026	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 12/11/2026	Cut Tape $1.47 $1.11 $0.861 $0.811 Reel $0.793 View $0.767 $0.74 $0.714 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: $1.78 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 23/11/2026 44,850 Expected 11/1/2027 Factory Lead Time: 13 Weeks	Cut Tape $1.78 $1.34 $1.04 Reel $0.982 $0.96 View $0.928 $0.896 $0.864 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: $1.20 40,126In Stock 104,400Expected 10/3/2027	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	40,126In Stock 104,400Expected 10/3/2027	Cut Tape $1.20 $0.885 $0.69 $0.65 Reel $0.615 View $0.635 $0.592 $0.571 $0.562 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: $1.37 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 6/11/2026 135,000 Expected 5/1/2027 6,000 TBD Factory Lead Time: 21 Weeks	Cut Tape $1.37 $1.03 $0.802 $0.756 Reel $0.74 View $0.715 $0.691 $0.666 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: $1.77 43,037In Stock 59,800Expected 4/11/2026	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	43,037In Stock 59,800Expected 4/11/2026	Cut Tape $1.77 $1.32 $1.03 Reel $0.972 $0.951 View $0.919 $0.888 $0.855 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: $1.65 30,865In 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	30,865In Stock 33,000Expected 28/12/2026	Cut Tape $1.65 $1.23 $0.957 $0.903 Reel $0.883 View $0.853 $0.824 $0.794 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: $2.07 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 $2.07 $1.54 $1.20 Reel $1.13 $1.11 View $1.07 $1.03 $0.996 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: $1.40 204,388In Stock 100,000Expected 4/11/2026	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	204,388In Stock 100,000Expected 4/11/2026	Cut Tape $1.40 $1.05 $0.821 $0.774 Reel $0.758 View $0.732 $0.706 $0.681 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: $1.88 29,789In Stock 24,750Expected 6/11/2026	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	29,789In Stock 24,750Expected 6/11/2026	Cut Tape $1.88 $1.40 $1.09 $1.03 Reel $1.00 View $0.968 $0.934 $0.902 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: $2.46 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 $2.46 $1.84 $1.43 Reel $1.35 $1.32 View $1.27 $1.23 $1.19 Quote MouseReel Available	Min.: 1 Mult.: 1 : 300	Standoffs	SMT	M4	10 mm			Reel, Cut Tape, MouseReel
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-2ET PEM 1: $1.16 85,552In Stock 105,000Expected 6/11/2026	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	85,552In Stock 105,000Expected 6/11/2026	Cut Tape $1.16 $0.872 $0.679 $0.639 Reel $0.604 View $0.626 $0.583 $0.563 $0.555 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: $1.16 183,185In 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	183,185In Stock 280,500Expected 23/11/2026	Cut Tape $1.16 $0.872 $0.679 $0.639 Reel $0.604 View $0.626 $0.583 $0.563 $0.555 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: $1.46 155,207In Stock 123,300Expected 27/1/2027	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	155,207In Stock 123,300Expected 27/1/2027	Cut Tape $1.46 $1.09 $0.85 $0.801 Reel $0.783 View $0.758 $0.732 $0.706 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: $1.35 45,071In 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	45,071In Stock	Cut Tape $1.35 $1.01 $0.787 $0.743 Reel $0.726 View $0.702 $0.679 $0.654 $0.645 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: $1.73 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 6/11/2026 Factory Lead Time: 13 Weeks	Cut Tape $1.73 $1.29 $1.01 Reel $0.948 $0.928 View $0.896 $0.865 $0.834 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: $1.26 34,906In Stock 42,000Expected 24/11/2026	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 24/11/2026	Cut Tape $1.26 $0.945 $0.736 $0.694 Reel $0.656 View $0.679 $0.632 $0.611 $0.601 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: $1.17 39,867In Stock 232,540On 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	39,867In Stock 232,540On Order On Order Ship Dates Mfr. No: SMTSO-M2-2ET Stock: 39,867 Can Dispatch Immediately On Order: 81,040 Expected 27/10/2026 51,000 Expected 25/11/2026 100,500 Expected 9/12/2026 Factory Lead Time: 13 Weeks	Cut Tape $1.17 $0.868 $0.676 $0.638 Reel $0.601 View $0.624 $0.581 $0.56 $0.552 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: $1.66 47,988In 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	47,988In Stock 154,050On Order On Order Ship Dates Mfr. No: SMTSO-M3-6ET Stock: 47,988 Can Dispatch Immediately On Order: 650 Pending 69,550 Expected 12/11/2026 83,850 Expected 15/1/2027 Factory Lead Time: 13 Weeks	Cut Tape $1.66 $1.25 $0.971 Reel $0.915 $0.895 View $0.865 $0.835 $0.805 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: $1.48 78,865In 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	78,865In Stock	Cut Tape $1.48 $1.11 $0.862 $0.813 Reel $0.796 View $0.768 $0.743 $0.715 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: $1.56 55,266In 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	55,266In Stock	Cut Tape $1.56 $1.17 $0.91 $0.858 Reel $0.839 View $0.811 $0.783 $0.755 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Standoffs	SMT	2-56	0.125 in	Steel	Zinc	Reel, Cut Tape, MouseReel

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