.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: 2,928

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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Standoffs & Spacers SURFACE MOUNT STANDOFF SMTSO-440-12ET PEM 1: $1.65 86,809In 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	86,809In Stock 81,300On Order On Order Ship Dates Mfr. #: SMTSO-440-12ET Stock: 86,809 Can Ship Immediately On Order: 300 Pending 81,000 Expected 10/28/2026 Factory Lead-Time: 13 Weeks	Cut Tape $1.65 $1.24 $0.961 Reel $0.906 $0.887 View $0.857 $0.827 $0.797 Quote MouseReel Available	Min.: 1 Mult.: 1 : 300
Mounting Hardware NUT, BROACHING, STAINLESS KFS2-440 PEM 1: $0.832 156,150In Stock 88,000Expected 10/21/2026	Mfr. Part # KFS2-440 Mouser Part # 153-KFS2-440	PEM	Mounting Hardware NUT, BROACHING, STAINLESS Learn More about PEM kf2 kfs2 broaching nuts	Datasheet	156,150In Stock 88,000Expected 10/21/2026	$0.832 $0.598 $0.48 $0.432 View $0.40 $0.39 $0.367 $0.359 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-2ET PEM 1: $1.11 117,834In Stock 105,000Expected 10/28/2026	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	117,834In Stock 105,000Expected 10/28/2026	Cut Tape $1.11 $0.833 $0.649 $0.611 Reel $0.577 View $0.598 $0.558 $0.538 $0.53 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-8ET PEM 1: $1.69 49,769In Stock 59,800Expected 10/28/2026	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	49,769In Stock 59,800Expected 10/28/2026	Cut Tape $1.69 $1.27 $0.985 Reel $0.93 $0.909 View $0.879 $0.849 $0.818 Quote MouseReel Available	Min.: 1 Mult.: 1 : 650
Standoffs & Spacers STANDOFF 4-40 1 BAG/100 PIECES 19132 Vicor 1: $137.06 766In Stock	Mfr. Part # 19132 Mouser Part # 492-19132	Vicor	Standoffs & Spacers STANDOFF 4-40 1 BAG/100 PIECES	Datasheet	766In Stock	$137.06 $92.48	Min.: 1 Mult.: 1
Standoffs & Spacers SURFACE MOUNT STANDOFF, 4-40 SMTSO-440-4ET PEM 1: $1.42 80,603In Stock 3,660Expected 10/16/2026	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	80,603In Stock 3,660Expected 10/16/2026	Cut Tape $1.42 $1.06 $0.824 $0.777 Reel $0.761 View $0.735 $0.71 $0.684 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Mounting Hardware NUT,BROACHING,STEEL,NO H.T. KF2-440-ET PEM 1: $0.39 149,794In 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	149,794In Stock	$0.39 $0.285 $0.228 $0.205 View $0.191 $0.185 $0.174 $0.17 $0.165	Min.: 1 Mult.: 1
Mounting Hardware NUT, MINILOCK FEO-440-MD PEM 1: $1.26 6,703In Stock	Mfr. Part # FEO-440-MD Mouser Part # 153-FEO-440-MD	PEM	Mounting Hardware NUT, MINILOCK	Datasheet	6,703In Stock	$1.26 $0.894 $0.716 $0.675 View $0.572 $0.549 $0.536 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers SureWare Precision Board Stacking Standoff SO-1015-03-01-01 Samtec 1: $3.06 3,085In Stock	Mfr. Part # SO-1015-03-01-01 Mouser Part # 200-SO1015030101	Samtec	Standoffs & Spacers SureWare Precision Board Stacking Standoff		3,085In Stock	$3.06 $2.72 Quote Quote	Min.: 1 Mult.: 1
Standoffs & Spacers SureWare Precision Board Stacking Standoff SO-0318-04-01-02 Samtec 1: $5.62 2,649In 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		2,649In Stock	$5.62 $4.58 $3.89 $3.46 View $2.74 $2.51 $2.42	Min.: 1 Mult.: 1
Standoffs & Spacers SUREWARE STANDOFF SO-0165-04-01-02 Samtec 1: $4.36 2,656In Stock	Mfr. Part # SO-0165-04-01-02 Mouser Part # 200-SO0165040102	Samtec	Standoffs & Spacers SUREWARE STANDOFF		2,656In Stock	$4.36 $3.56 $3.20 $2.93 View $2.33 $2.17 $2.12 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers SureWare Precision Board Stacking Standoff SO-0715-01-01-02-N Samtec 1: $2.48 4,520In Stock	Mfr. Part # SO-0715-01-01-02-N Mouser Part # 200-SO0715010102N	Samtec	Standoffs & Spacers SureWare Precision Board Stacking Standoff		4,520In Stock	$2.48 $1.94 $1.90	Min.: 1 Mult.: 1
Standoffs & Spacers SOS-440-.250/KNURL CLINCH DSOS-440-250 PEM 1: $1.14 7,296In Stock	Mfr. Part # DSOS-440-250 Mouser Part # 153-DSOS-440-250	PEM	Standoffs & Spacers SOS-440-.250/KNURL CLINCH Learn More about PEM dso dsos standoffs	Datasheet	7,296In Stock	$1.14 $0.819 $0.655 $0.59 View $0.547 $0.533 $0.502 $0.491 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers Broaching Standoff 4-40 .250 L Stainless Steel KFSE-440-8 PEM 1: $1.16 13,105In Stock	Mfr. Part # KFSE-440-8 Mouser Part # 153-KFSE-440-8	PEM	Standoffs & Spacers Broaching Standoff 4-40 .250 L Stainless Steel Learn More about PEM kfe kfse broaching standoffs	Datasheet	13,105In Stock	$1.16 $0.863 $0.672 $0.633 View $0.62 $0.599 $0.579 $0.558 $0.549	Min.: 1 Mult.: 1
Standoffs & Spacers R44 4-40 UNC x 10mm BRASS 5mm A/F R44-1001202 Harwin 1: $0.637 9,443In 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	9,443In Stock	$0.637 $0.502 $0.40 $0.359 View $0.352 $0.342 $0.312 $0.30 $0.291	Min.: 1 Mult.: 1
Standoffs & Spacers Broaching Standoff 4-40 .500 L Carbon Steel KFE-440-16ET PEM 1: $1.01 7,046In Stock	Mfr. Part # KFE-440-16ET Mouser Part # 153-KFE-440-16ET	PEM	Standoffs & Spacers Broaching Standoff 4-40 .500 L Carbon Steel Learn More about PEM kfe kfse broaching standoffs	Datasheet	7,046In Stock	$1.01 $0.723 $0.579 $0.52 View $0.484 $0.469 $0.443 $0.433 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers Broach Flare Mount Standoff 4-40 .062 L Brass KFB3-440-2ET PEM 1: $0.754 8,718In 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	8,718In Stock	$0.754 $0.532 $0.425 $0.40 View $0.339 $0.325 $0.319 $0.307	Min.: 1 Mult.: 1
Standoffs & Spacers Broach Flare Mount Standoff 4-40 .250 L Brass KFB3-440-8ET PEM 1: $0.936 8,938In Stock	Mfr. Part # KFB3-440-8ET Mouser Part # 153-KFB3-440-8ET	PEM	Standoffs & Spacers Broach Flare Mount Standoff 4-40 .250 L Brass Learn More about PEM kfb3 broach flare mount standoffs	Datasheet	8,938In Stock	$0.936 $0.664 $0.532 $0.478 View $0.445 $0.432 $0.407 $0.399 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers Broaching Standoff 4-40 .125 L Stainless Steel KFSE-440-4 PEM 1: $1.22 10,799In Stock	Mfr. Part # KFSE-440-4 Mouser Part # 153-KFSE-440-4	PEM	Standoffs & Spacers Broaching Standoff 4-40 .125 L Stainless Steel Learn More about PEM kfe kfse broaching standoffs	Datasheet	10,799In Stock	$1.22 $0.87 $0.696 $0.627 View $0.582 $0.566 $0.533 $0.521 Quote	Min.: 1 Mult.: 1
Screws & Fasteners M4 x 0.7 Pitch Right Angle Threaded Fastner SMTRAM4-9-7ET PEM 1: $3.77 3,639In Stock 10,000Expected 3/3/2027	Mfr. Part # SMTRAM4-9-7ET Mouser Part # 153-SMTRAM4-9-7ET	PEM	Screws & Fasteners M4 x 0.7 Pitch Right Angle Threaded Fastner Learn More about PEM smtra rangle fasteners	Datasheet	3,639In Stock 10,000Expected 3/3/2027	Cut Tape $3.77 $2.82 $2.60 $2.33 Reel $2.16 View $2.05 $2.02 $1.95 $1.87 MouseReel Available	Min.: 1 Mult.: 1 : 200
Standoffs & Spacers Broach Flare Mount Standoff 4-40 .187 L Brass KFB3-440-6ET PEM 1: $0.858 14,406In Stock	Mfr. Part # KFB3-440-6ET Mouser Part # 153-KFB3-440-6ET	PEM	Standoffs & Spacers Broach Flare Mount Standoff 4-40 .187 L Brass Learn More about PEM kfb3 broach flare mount standoffs	Datasheet	14,406In Stock	$0.858 $0.616 $0.493 $0.443 View $0.412 $0.40 $0.378 $0.369 Quote	Min.: 1 Mult.: 1
Screws & Fasteners PF11 PANEL FASTENER PF11-440-2 PEM 1: $3.85 3,603In Stock	Mfr. Part # PF11-440-2 Mouser Part # 153-PF11-440-2	PEM	Screws & Fasteners PF11 PANEL FASTENER Learn More about PEM pf11 pf12 pf11m pf12m screws	Datasheet	3,603In Stock	$3.85 $3.07 $2.83 $2.54 View $2.37 $2.24 $2.15 $2.05 $1.99	Min.: 1 Mult.: 1
Mounting Hardware SS LOW PROFILE NUT SMPS-440 PEM 1: $0.468 27,160In Stock	Mfr. Part # SMPS-440 Mouser Part # 153-SMPS-440	PEM	Mounting Hardware SS LOW PROFILE NUT	Datasheet	27,160In Stock	$0.468 $0.335 $0.268 $0.242 View $0.224 $0.218 $0.205 $0.202 $0.194	Min.: 1 Mult.: 1
Screws & Fasteners STUD, FLUSH, STEEL FH-440-6ZI PEM 1: $0.221 36,997In Stock	Mfr. Part # FH-440-6ZI Mouser Part # 153-FH-440-6ZI	PEM	Screws & Fasteners STUD, FLUSH, STEEL Learn More about PEM fh fha fhs self clinching threaded studs	Datasheet	36,997In Stock	$0.221 $0.172 $0.153 $0.133 View $0.121 $0.113 $0.107 $0.10 $0.098	Min.: 1 Mult.: 1
Standoffs & Spacers Broaching Standoff 4-40 .375 L Carbon Steel KFE-440-12ET PEM 1: $0.936 5,861In Stock	Mfr. Part # KFE-440-12ET Mouser Part # 153-KFE-440-12ET	PEM	Standoffs & Spacers Broaching Standoff 4-40 .375 L Carbon Steel Learn More about PEM kfe kfse broaching standoffs	Datasheet	5,861In Stock	$0.936 $0.673 $0.538 $0.485 View $0.45 $0.438 $0.412 $0.404 Quote	Min.: 1 Mult.: 1

4-40 Hardware

Types of Hardware

Applied Filters:

Customer Service Office

Company

Resources

Support