.hide-partial { max-height: none; } .show-more { display: none; }

4-40 Hardware

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Hardware

List Images

Results: 2,927

Applied Filters:

Thread Size = 4-40

Manufacturer

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) Filter the results in the table by unit price based on your quantity.	Qty.
Mounting Hardware NUT,BROACHING,STEEL,NO H.T. KF2-440-ET PEM 1: $0.432 143,744In Stock	Mfr. Part # KF2-440-ET Mouser Part # 153-KF2-440-ET	PEM	Mounting Hardware NUT,BROACHING,STEEL,NO H.T. Learn More about PEM kf2 kfs2 broaching nuts	Datasheet	143,744In Stock	$0.432 $0.315 $0.252 $0.228 View $0.212 $0.204 $0.193 $0.189 $0.183	Min.: 1 Mult.: 1
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-8ET PEM 1: $1.87 45,972In Stock 59,800Expected 2026-10-28	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	45,972In Stock 59,800Expected 2026-10-28	Cut Tape $1.87 $1.40 $1.09 Reel $1.03 $1.01 View $0.973 $0.94 $0.906 Quote MouseReel Available	Min.: 1 Mult.: 1 : 650
Mounting Hardware NUT, BROACHING, STAINLESS KFS2-440 PEM 1: $0.922 141,340In Stock 88,000Expected 2026-10-21	Mfr. Part # KFS2-440 Mouser Part # 153-KFS2-440	PEM	Mounting Hardware NUT, BROACHING, STAINLESS Learn More about PEM kf2 kfs2 broaching nuts	Datasheet	141,340In Stock 88,000Expected 2026-10-21	$0.922 $0.662 $0.531 $0.478 View $0.444 $0.432 $0.406 $0.397 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-2ET PEM 1: $1.22 103,018In Stock 105,000Expected 2026-10-28	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	103,018In Stock 105,000Expected 2026-10-28	Cut Tape $1.22 $0.923 $0.719 $0.677 Reel $0.639 View $0.662 $0.618 $0.596 $0.588 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-4ET PEM 1: $1.57 83,335In 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	83,335In Stock	Cut Tape $1.57 $1.17 $0.913 $0.861 Reel $0.842 View $0.814 $0.786 $0.757 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-440-12ET PEM 1: $1.83 76,769In 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	76,769In Stock 81,300On Order On Order Ship Dates Mfr. #: SMTSO-440-12ET Stock: 76,769 Can Ship Immediately On Order: 300 Pending 81,000 Expected 2026-10-28 Factory Lead-Time: 13 Weeks	Cut Tape $1.83 $1.37 $1.06 Reel $1.00 $0.982 View $0.949 $0.916 $0.883 Quote MouseReel Available	Min.: 1 Mult.: 1 : 300
Standoffs & Spacers STANDOFF 4-40 1 BAG/100 PIECES 19132 Vicor 1: $151.82 766In Stock	Mfr. Part # 19132 Mouser Part # 492-19132	Vicor	Standoffs & Spacers STANDOFF 4-40 1 BAG/100 PIECES	Datasheet	766In Stock	$151.82 $102.44	Min.: 1 Mult.: 1
Standoffs & Spacers SureWare Precision Board Stacking Standoff SO-0715-01-01-02-N Samtec 1: $2.82 4,460In Stock	Mfr. Part # SO-0715-01-01-02-N Mouser Part # 200-SO0715010102N	Samtec	Standoffs & Spacers SureWare Precision Board Stacking Standoff		4,460In Stock	$2.82 $2.15 $2.13 $1.87 View $1.80 $1.71 $1.66	Min.: 1 Mult.: 1
Standoffs & Spacers SureWare Precision Board Stacking Standoff SO-1015-03-01-01 Samtec 1: $3.54 2,975In Stock	Mfr. Part # SO-1015-03-01-01 Mouser Part # 200-SO1015030101	Samtec	Standoffs & Spacers SureWare Precision Board Stacking Standoff		2,975In Stock	$3.54 $3.01 $2.58 $2.49 View $2.40 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers SUREWARE STANDOFF SO-0165-04-01-02 Samtec 1: $4.65 2,641In Stock	Mfr. Part # SO-0165-04-01-02 Mouser Part # 200-SO0165040102	Samtec	Standoffs & Spacers SUREWARE STANDOFF		2,641In Stock	$4.65 $3.84 $3.48 $3.23 View $2.55 $2.40 $2.35 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers SureWare Precision Board Stacking Standoff SO-0318-04-01-02 Samtec 1: $6.22 2,614In Stock	Mfr. Part # SO-0318-04-01-02 Mouser Part # 200-SO0318040102	Samtec	Standoffs & Spacers SureWare Precision Board Stacking Standoff Learn More about Samtec hqcd qstrip cable assembly		2,614In Stock	$6.22 $5.07 $4.31 $3.83 View $2.94 $2.78 $2.68	Min.: 1 Mult.: 1
Standoffs & Spacers R44 4-40 UNC x 10mm BRASS 5mm A/F R44-1001202 Harwin 1: $0.619 9,333In Stock	Mfr. Part # R44-1001202 Mouser Part # 855-R44-1001202	Harwin	Standoffs & Spacers R44 4-40 UNC x 10mm BRASS 5mm A/F Learn More about Harwin hexagonal clearance spacers	Datasheet	9,333In Stock	$0.619 $0.491 $0.425 $0.405 View $0.396 $0.379 $0.356 $0.343 $0.333	Min.: 1 Mult.: 1
Mounting Hardware NUT, MINILOCK FEO-440-MD PEM 1: $1.40 6,703In Stock	Mfr. Part # FEO-440-MD Mouser Part # 153-FEO-440-MD	PEM	Mounting Hardware NUT, MINILOCK	Datasheet	6,703In Stock	$1.40 $0.991 $0.793 $0.714 View $0.606 $0.593 Quote	Min.: 1 Mult.: 1
Mounting Hardware FLOATER, ASSY, STAINLESS,NL AC-440-2 PEM 1: $3.18 4,943In Stock	Mfr. Part # AC-440-2 Mouser Part # 153-AC-440-2	PEM	Mounting Hardware FLOATER, ASSY, STAINLESS,NL Learn More about PEM a4 ac as floating fasteners	Datasheet	4,943In Stock	$3.18 $2.38 $1.86 $1.74 View $1.68 $1.64 $1.58 $1.53 Quote	Min.: 1 Mult.: 1
Screws & Fasteners NUT, LOCKING, S/S FILM ONLY LKS-440-2MD PEM 1: $1.87 8,961In Stock	Mfr. Part # LKS-440-2MD Mouser Part # 153-LKS-440-2MD	PEM	Screws & Fasteners NUT, LOCKING, S/S FILM ONLY	Datasheet	8,961In Stock	$1.87 $1.47 $1.33 $1.18 View $1.08 $1.05 $0.994 $0.949 $0.913	Min.: 1 Mult.: 1
Mounting Hardware FLOATER, ASSY, STAINLESS,NL AC-440-1 PEM 1: $3.17 5,371In Stock	Mfr. Part # AC-440-1 Mouser Part # 153-AC-440-1	PEM	Mounting Hardware FLOATER, ASSY, STAINLESS,NL Learn More about PEM a4 ac as floating fasteners	Datasheet	5,371In Stock	$3.17 $2.38 $1.84 $1.74 View $1.68 $1.63 $1.57 $1.53 Quote	Min.: 1 Mult.: 1
Mounting Hardware NUT, MINI, NL FEX-440 PEM 1: $1.02 9,550In Stock	Mfr. Part # FEX-440 Mouser Part # 153-FEX-440	PEM	Mounting Hardware NUT, MINI, NL	Datasheet	9,550In Stock	$1.02 $0.723 $0.579 $0.521 View $0.482 $0.469 $0.442 $0.433 Quote	Min.: 1 Mult.: 1
Screws & Fasteners PANEL FASTENER,ASSY,BROACHING PFK-440-40 PEM 1: $6.11 3,774In Stock	Mfr. Part # PFK-440-40 Mouser Part # 153-PFK-440-40	PEM	Screws & Fasteners PANEL FASTENER,ASSY,BROACHING Learn More about PEM pfk captive panel screws	Datasheet	3,774In Stock	$6.11 $4.87 $4.49 $4.02 View $3.76 $3.59 $3.41 $3.27 $3.15	Min.: 1 Mult.: 1
Standoffs & Spacers Broaching Standoff 4-40 .375 L Stainless Steel KFSE-440-12 PEM 1: $1.48 15,975In Stock	Mfr. Part # KFSE-440-12 Mouser Part # 153-KFSE-440-12	PEM	Standoffs & Spacers Broaching Standoff 4-40 .375 L Stainless Steel Learn More about PEM kfe kfse broaching standoffs	Datasheet	15,975In Stock	$1.48 $1.11 $0.864 $0.815 View $0.796 $0.77 $0.743 $0.717 Quote	Min.: 1 Mult.: 1
Mounting Hardware HI-TORQUE INSERT, BRASS IUTFB-440 SI 1: $0.691 9,989In Stock	Mfr. Part # IUTFB-440 Mouser Part # 153-IUTFB-440	SI	Mounting Hardware HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9,989In Stock	$0.691 $0.485 $0.389 $0.35 View $0.32 $0.315 $0.297 $0.291 $0.281	Min.: 1 Mult.: 1
Standoffs & Spacers STANDOFF, STEEL SO-440-6ZI PEM 1: $0.634 9,043In Stock	Mfr. Part # SO-440-6ZI Mouser Part # 153-SO-440-6ZI	PEM	Standoffs & Spacers STANDOFF, STEEL Learn More about PEM so sos standoffs	Datasheet	9,043In Stock	$0.634 $0.442 $0.354 $0.32 View $0.291 $0.287 $0.271 $0.265 $0.256	Min.: 1 Mult.: 1
Standoffs & Spacers STANDOFF, STAINLESS SOS-440-4 PEM 1: $1.12 10,083In Stock	Mfr. Part # SOS-440-4 Mouser Part # 153-SOS-440-4	PEM	Standoffs & Spacers STANDOFF, STAINLESS Learn More about PEM so sos standoffs	Datasheet	10,083In Stock	$1.12 $0.791 $0.634 $0.57 View $0.528 $0.514 $0.484 $0.474 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers STANDOFF, STAINLESS SOS-440-6 PEM 1: $1.14 9,270In Stock	Mfr. Part # SOS-440-6 Mouser Part # 153-SOS-440-6	PEM	Standoffs & Spacers STANDOFF, STAINLESS Learn More about PEM so sos standoffs	Datasheet	9,270In Stock	$1.14 $0.802 $0.642 $0.579 View $0.536 $0.521 $0.491 $0.481 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers STANDOFF, STAINLESS SOS-6440-10 PEM 1: $1.37 10,284In Stock	Mfr. Part # SOS-6440-10 Mouser Part # 153-SOS-6440-10	PEM	Standoffs & Spacers STANDOFF, STAINLESS Learn More about PEM so sos standoffs	Datasheet	10,284In Stock	$1.37 $1.01 $0.788 $0.743 View $0.726 $0.701 $0.677 $0.652 $0.644	Min.: 1 Mult.: 1
Standoffs & Spacers Broach Flare Mount Standoff 4-40 .062 L Brass KFB3-440-2ET PEM 1: $0.835 9,620In Stock	Mfr. Part # KFB3-440-2ET Mouser Part # 153-KFB3-440-2ET	PEM	Standoffs & Spacers Broach Flare Mount Standoff 4-40 .062 L Brass Learn More about PEM kfb3 broach flare mount standoffs	Datasheet	9,620In Stock	$0.835 $0.589 $0.471 $0.444 View $0.376 $0.36 $0.353 $0.34	Min.: 1 Mult.: 1

4-40 Hardware

Types of Hardware

Applied Filters:

Mouser®

Company

Resources

Support