4-40 – Mouser Puerto Rico

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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.
Standoffs & Spacers Broach Flare Mount Standoff 4-40 .250 L Brass KFB3-440-8ET PEM 1: $0.72 8,868In 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	8,868In Stock	$0.72 $0.511 $0.409 $0.368 View $0.342 $0.332 $0.313 $0.307 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers Broaching Standoff 4-40 .125 L Stainless Steel KFSE-440-4 PEM 1: $0.94 10,152In 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	10,152In Stock	$0.94 $0.669 $0.535 $0.482 View $0.448 $0.435 $0.41 $0.401 Quote	Min.: 1 Mult.: 1
Screws & Fasteners NUT, LOCKING, S/S FILM ONLY LKS-440-2MD PEM 1: $1.30 6,461In Stock	Mfr. Part # LKS-440-2MD Mouser Part # 153-LKS-440-2MD	PEM	Screws & Fasteners NUT, LOCKING, S/S FILM ONLY	Datasheet	6,461In Stock	$1.30 $1.02 $0.927 $0.822 View $0.763 $0.647 $0.634	Min.: 1 Mult.: 1
Screws & Fasteners M4 x 0.7 Pitch Right Angle Threaded Fastner SMTRAM4-9-7ET PEM 1: $2.90 3,365In 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	3,365In Stock 10,000Expected 3/3/2027	Cut Tape $2.90 $2.17 $2.00 $1.79 Reel $1.66 View $1.58 $1.55 $1.50 $1.44 MouseReel Available	Min.: 1 Mult.: 1 : 200
Standoffs & Spacers Broaching Standoff 4-40 .125 L Carbon Steel KFE-440-4ET PEM 1: $0.57 10,226In Stock	Mfr. Part # KFE-440-4ET Mouser Part # 153-KFE-440-4ET	PEM	Standoffs & Spacers Broaching Standoff 4-40 .125 L Carbon Steel Learn More about PEM kfe kfse broaching standoffs	Datasheet	10,226In Stock	$0.57 $0.408 $0.326 $0.294 View $0.273 $0.265 $0.25 $0.245 $0.236	Min.: 1 Mult.: 1
Standoffs & Spacers Broaching Standoff 4-40 .250 L Stainless Steel KFSE-440-8 PEM 1: $0.89 11,534In 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	11,534In Stock	$0.89 $0.664 $0.517 $0.487 View $0.477 $0.461 $0.445 $0.429 $0.422	Min.: 1 Mult.: 1
Screws & Fasteners PANEL FASTENER,ASSY,BROACHING PFK-440-40 PEM 1: $4.24 3,714In 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	3,714In Stock	$4.24 $3.38 $3.12 $2.79 View $2.61 $2.49 $2.37 $2.27 $2.19	Min.: 1 Mult.: 1
Mounting Hardware SMTRA440-9-6ET PEM 1: $2.17 12,846In Stock 26,400On Order	Mfr. Part # SMTRA440-9-6ET Mouser Part # 153-SMTRA440-9-6ET	PEM	Mounting Hardware Learn More about PEM smtra rangle fasteners	Datasheet	12,846In Stock 26,400On Order On Order Ship Dates Mfr. #: SMTRA440-9-6ET Stock: 12,846 Can Ship Immediately On Order: 900 Expected 11/2/2026 6,300 Expected 11/10/2026 19,200 Expected 12/30/2026 Factory Lead-Time: 28 Weeks	Cut Tape $2.17 $1.62 $1.26 Reel $1.18 MouseReel Available	Min.: 1 Mult.: 1 : 300
Mounting Hardware PANEL FASTENER,ASSY,LOW PROFIL PF32-440-30CN PEM 1: $3.00 4,810In Stock	Mfr. Part # PF32-440-30CN Mouser Part # 153-PF32-440-30CN	PEM	Mounting Hardware PANEL FASTENER,ASSY,LOW PROFIL	Datasheet	4,810In Stock	$3.00 $2.78 $2.48 $2.33 View $2.25 $2.17 $2.10 $2.02 Quote	Min.: 1 Mult.: 1
Mounting Hardware NUT, MINI, NL FEX-440 PEM 1: $0.71 9,550In Stock	Mfr. Part # FEX-440 Mouser Part # 153-FEX-440	PEM	Mounting Hardware NUT, MINI, NL	Datasheet	9,550In Stock	$0.71 $0.502 $0.402 $0.362 View $0.335 $0.326 $0.307 $0.301 Quote	Min.: 1 Mult.: 1
Mounting Hardware PF52-440-0CN PEM 1: $2.85 4,955In Stock	Mfr. Part # PF52-440-0CN Mouser Part # 153-PF52-440-0CN	PEM	Mounting Hardware	Datasheet	4,955In Stock	$2.85 $2.64 $2.36 $2.22 View $2.13 $2.06 $1.99 $1.92 Quote	Min.: 1 Mult.: 1
D-Sub Tools & Hardware SCRW RETAINER KIT 5746881-2 TE Connectivity / AMP 1: $2.30 9,999In Stock	Mfr. Part # 5746881-2 Mouser Part # 571-5746881-2	TE Connectivity / AMP	D-Sub Tools & Hardware SCRW RETAINER KIT	Datasheet	9,999In Stock	$2.30 $2.01 $1.79 $1.71 View $1.60 $1.53 $1.44 $1.34 $1.17	Min.: 1 Mult.: 1
Standoffs & Spacers .420 MAL-FEM 6PCS 18159 Vicor 1: $12.52 197In Stock	Mfr. Part # 18159 Mouser Part # 492-18159	Vicor	Standoffs & Spacers .420 MAL-FEM 6PCS	Datasheet	197In Stock	$12.52 $11.60 $10.84 $10.59 View $10.23 $10.22 $10.19 Quote	Min.: 1 Mult.: 1
D-Sub Tools & Hardware FEMALE SCREWLOCK 5748271-3 TE Connectivity 1: $4.37 A tariff of 20% may be applied if shipping to the United States. 2,622In Stock	Mfr. Part # 5748271-3 Mouser Part # 571-5748271-3	TE Connectivity	D-Sub Tools & Hardware FEMALE SCREWLOCK Learn More about TE Connectivity amplimite military dsub connectors	Datasheet	2,622In Stock	$4.37 $3.92 $3.83 $3.69 View $3.54 $3.36 $3.25 $2.94 $2.82 A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Standoffs & Spacers Broach Flare Mount Standoff 4-40 .375 L Brass KFB3-440-12ET PEM 1: $0.81 10,167In Stock	Mfr. Part # KFB3-440-12ET Mouser Part # 153-KFB3-440-12ET	PEM	Standoffs & Spacers Broach Flare Mount Standoff 4-40 .375 L Brass Learn More about PEM kfb3 broach flare mount standoffs	Datasheet	10,167In Stock	$0.81 $0.575 $0.46 $0.414 View $0.385 $0.374 $0.353 $0.345 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers Broach Flare Mount Standoff 4-40 .625 L Brass KFB3-440-20ET PEM 1: $0.83 A tariff of 38% may be applied if shipping to the United States. 4,094In Stock	Mfr. Part # KFB3-440-20ET Mouser Part # 153-KFB3-440-20ET	PEM	Standoffs & Spacers Broach Flare Mount Standoff 4-40 .625 L Brass Learn More about PEM kfb3 broach flare mount standoffs	Datasheet	4,094In Stock	$0.83 $0.616 $0.48 $0.453 View $0.443 $0.428 $0.412 $0.397 $0.392 A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Mounting Hardware FLOATER, ASSY, STAINLESS,NL AC-440-2 PEM 1: $2.21 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	$2.21 $1.65 $1.29 $1.21 View $1.17 $1.14 $1.10 $1.06 Quote	Min.: 1 Mult.: 1
Mounting Hardware FLOATER, ASSY, STAINLESS,NL AC-440-1 PEM 1: $2.20 4,893In 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	4,893In Stock	$2.20 $1.65 $1.28 $1.21 View $1.17 $1.13 $1.09 $1.06 Quote	Min.: 1 Mult.: 1
Mounting Hardware FLOATER,ASSEMBLY,LOCKING,S/S LAC-440-1MD PEM 1: $2.55 4,907In Stock	Mfr. Part # LAC-440-1MD Mouser Part # 153-LAC-440-1MD	PEM	Mounting Hardware FLOATER,ASSEMBLY,LOCKING,S/S	Datasheet	4,907In Stock	$2.55 $1.90 $1.48 $1.39 View $1.36 $1.32 $1.27 Quote	Min.: 1 Mult.: 1
Mounting Hardware HI-TORQUE INSERT, BRASS IUTFB-440 SI 1: $0.48 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	$0.48 $0.337 $0.27 $0.243 View $0.222 $0.219 $0.206 $0.202 $0.195	Min.: 1 Mult.: 1
Standoffs & Spacers STANDOFF, STAINLESS SOS-440-4 PEM 1: $0.78 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	$0.78 $0.549 $0.44 $0.396 View $0.367 $0.357 $0.336 $0.329 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers STANDOFF, STAINLESS SOS-440-6 PEM 1: $0.79 8,728In 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	8,728In Stock	$0.79 $0.557 $0.446 $0.402 View $0.372 $0.362 $0.341 $0.334 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers STANDOFF, STAINLESS SOS-6440-10 PEM 1: $0.95 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	$0.95 $0.703 $0.547 $0.516 View $0.504 $0.487 $0.47 $0.453 $0.447	Min.: 1 Mult.: 1
Mounting Hardware ULTRASONIC INSERT, ALUM IUA-440-1 SI 1: $0.26 1,426In Stock	Mfr. Part # IUA-440-1 Mouser Part # 153-IUA-440-1	SI	Mounting Hardware ULTRASONIC INSERT, ALUM Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	1,426In Stock	$0.26 $0.188 $0.151 $0.136 View $0.126 $0.122 $0.115 $0.113 $0.109	Min.: 1 Mult.: 1
Mounting Hardware HI-TORQUE INSERT, BRASS .135X.152 4-40 THREAD ULTRASONIC HEAT STAKING DIAGONAL IUTB-440-135 SI 1: $0.30 A tariff of 11% may be applied if shipping to the United States. 5,598In Stock	Mfr. Part # IUTB-440-135 Mouser Part # 153-IUTB-440-135	SI	Mounting Hardware HI-TORQUE INSERT, BRASS .135X.152 4-40 THREAD ULTRASONIC HEAT STAKING DIAGONAL Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	5,598In Stock	$0.30 $0.21 $0.168 $0.158 View $0.133 $0.128 $0.125 $0.121 A tariff of 11% may be applied if shipping to the United States.	Min.: 1 Mult.: 1