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4-40 Mounting Hardware

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Material	Mounting Hole Size	Length	Outside Diameter	Thread Size	Gender	Packaging
Mounting Hardware NUT, BROACHING, STAINLESS KFS2-440 PEM 1: $729 212.114In Stock	Mfr. Part # KFS2-440 Mouser Part # 153-KFS2-440	PEM	Mounting Hardware NUT, BROACHING, STAINLESS Learn More about PEM kf2 kfs2 broaching nuts	Datasheet	212.114In Stock	$729 $524 $420 $378 View $351 $342 $321 $314 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Broaching Nut	Stainless Steel				4-40
Mounting Hardware SMTRA440-9-6ET PEM 1: $2.472 17.261In Stock 42.600On Order	Mfr. Part # SMTRA440-9-6ET Mouser Part # 153-SMTRA440-9-6ET	PEM	Mounting Hardware Learn More about PEM smtra rangle fasteners	Datasheet	17.261In Stock 42.600On Order On Order Ship Dates Mfr. #: SMTRA440-9-6ET Stock: 17.261 Can Ship Immediately On Order: 900 Pending 19.200 Expected 12/30/2026 22.500 Expected 5/18/2027 Factory Lead-Time: 28 Weeks	Cut Tape $2.472 $1.846 $1.435 Reel $1.344 $1.310 View $1.276 $1.230 $1.185 Quote MouseReel Available	Min.: 1 Mult.: 1 : 300	Screws & Fasteners	Right Angle Fastener	Steel				4-40		Reel, Cut Tape, MouseReel
Mounting Hardware NUT,BROACHING,STEEL,NO H.T. KF2-440-ET PEM 1: $342 133.321In 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	133.321In Stock	$342 $250 $199 $180 View $167 $162 $153 $149 $145	Min.: 1 Mult.: 1	Screws & Fasteners	Broaching Nut	Steel				4-40
Mounting Hardware NUT, MINILOCK FEO-440-MD PEM 1: $1.105 6.703In Stock	Mfr. Part # FEO-440-MD Mouser Part # 153-FEO-440-MD	PEM	Mounting Hardware NUT, MINILOCK	Datasheet	6.703In Stock	$1.105 $784 $628 $565 View $480 $469 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Lock Nut	Steel				4-40
Mounting Hardware NUT, MINILOCK, FILM ONLY FE-440-MD PEM 1: $968 22.502In Stock	Mfr. Part # FE-440-MD Mouser Part # 153-FE-440-MD	PEM	Mounting Hardware NUT, MINILOCK, FILM ONLY	Datasheet	22.502In Stock	$968 $695 $556 $500 View $465 $452 $426 $417 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Lock Nut	Steel				4-40
Mounting Hardware FLOATER,ASSEMBLY,LOCKING,S/S LAC-440-2MD PEM 1: $2.905 5.534In Stock	Mfr. Part # LAC-440-2MD Mouser Part # 153-LAC-440-2MD	PEM	Mounting Hardware FLOATER,ASSEMBLY,LOCKING,S/S	Datasheet	5.534In Stock	$2.905 $2.165 $1.686 $1.595 View $1.561 $1.504 $1.447 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Lock Nut	Stainless Steel				4-40
Mounting Hardware ULTRASONIC INSERT, STAINLESS IUC-440-2 SI 1: $604 8.745In Stock	Mfr. Part # IUC-440-2 Mouser Part # 153-IUC-440-2	SI	Mounting Hardware ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	8.745In Stock	$604 $425 $340 $320 View $271 $260 $254 $245	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.141 in	0.219 in	0.172 in	4-40
Mounting Hardware SS LOW PROFILE NUT SMPS-440 PEM 1: $410 27.148In Stock	Mfr. Part # SMPS-440 Mouser Part # 153-SMPS-440	PEM	Mounting Hardware SS LOW PROFILE NUT	Datasheet	27.148In Stock	$410 $294 $235 $212 View $196 $191 $180 $177 $170	Min.: 1 Mult.: 1	Screws & Fasteners	Self Clinching	Steel				4-40
Mounting Hardware FLOATER, ASSY, STAINLESS,NL AC-440-2 PEM 1: $2.518 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	$2.518 $1.880 $1.470 $1.379 View $1.333 $1.299 $1.253 $1.208 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Non-Locking	Stainless Steel			9.14 mm	4-40	Female
Mounting Hardware NUT, MINI, NL FEX-440 PEM 1: $809 9.550In Stock	Mfr. Part # FEX-440 Mouser Part # 153-FEX-440	PEM	Mounting Hardware NUT, MINI, NL	Datasheet	9.550In Stock	$809 $572 $458 $412 View $382 $371 $350 $343 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Self Clinching	Steel				4-40
Mounting Hardware RIGHT ANGLE CLINCH NUT RAS440-9-4ZI PEM 1: $1.299 9.933In Stock	Mfr. Part # RAS440-9-4ZI Mouser Part # 153-RAS440-9-4ZI	PEM	Mounting Hardware RIGHT ANGLE CLINCH NUT	Datasheet	9.933In Stock	$1.299 $971 $755 $712 View $697 $673 $651 $627 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Right Angle Fastener	Steel				4-40
Mounting Hardware HI-TORQUE INSERT, BRASS IUTFB-440 SI 1: $547 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	$547 $384 $308 $277 View $253 $250 $235 $230 $222	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.158 in	0.226 in	0.218 in	4-40		Bulk
Mounting Hardware FLOATER, ASSY, STAINLESS,NL AC-440-1 PEM 1: $2.506 4.843In 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	4.843In Stock	$2.506 $1.880 $1.458 $1.379 View $1.333 $1.287 $1.242 $1.208 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Non-Locking	Stainless Steel			9.14 mm	4-40	Female
Mounting Hardware FLOATER,ASSEMBLY,LOCKING,S/S LAC-440-1MD PEM 1: $2.905 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	$2.905 $2.165 $1.709 $1.447 View $1.435 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Lock Nut	Stainless Steel				4-40
Mounting Hardware POST MOLD FLANGE INSERT BRASS PFLB-440-1 SI 1: $547 1.748In Stock	Mfr. Part # PFLB-440-1 Mouser Part # 153-PFLB-440-1	SI	Mounting Hardware POST MOLD FLANGE INSERT BRASS Learn More about SI press in inserts	Datasheet	1.748In Stock	$547 $388 $311 $280 View $260 $253 $238 $232 $226	Min.: 1 Mult.: 1	Inserts	Threaded Insert			0.166 in	0.219 in	4-40
Mounting Hardware ULTRASONIC INSERT, ALUM IUA-440-1 SI 1: $296 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	$296 $214 $172 $155 View $144 $139 $131 $129 $124	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	0.153 in	0.135 in	0.172 in	4-40
Mounting Hardware HI-TORQUE INSERT, BRASS .135X.152 4-40 THREAD ULTRASONIC HEAT STAKING DIAGONAL IUTB-440-135 SI 1: $342 5.298In 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	5.298In Stock	$342 $239 $191 $180 View $152 $146 $142 $138	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.158 in	0.135 in		4-40
Mounting Hardware MOLD-IN INSERT, BLIND, BRASS IBB-440-8 SI 1: $524 1.935In Stock	Mfr. Part # IBB-440-8 Mouser Part # 153-IBB-440-8	SI	Mounting Hardware MOLD-IN INSERT, BLIND, BRASS Learn More about SI molded in inserts	Datasheet	1.935In Stock	$524 $378 $303 $272 View $253 $246 $232 $227 $219	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Leaded Brass		0.344 in	0.188 in	4-40
Mounting Hardware ULTRASONIC INSERT, BRASS IUB-440-1 SI 1: $251 9.774In Stock	Mfr. Part # IUB-440-1 Mouser Part # 153-IUB-440-1	SI	Mounting Hardware ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9.774In Stock	$251 $177 $141 $133 View $112 $107 $105 $101	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.153 in	0.135 in	0.172 in	4-40
Mounting Hardware POST MOLD INSERT, BRASS PKB-440 SI 1: $684 1.028In Stock 10.000Expected 11/19/2026	Mfr. Part # PKB-440 Mouser Part # 153-PKB-440	SI	Mounting Hardware POST MOLD INSERT, BRASS Learn More about SI press in inserts	Datasheet	1.028In Stock 10.000Expected 11/19/2026	$684 $490 $393 $353 View $328 $319 $301 $294 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert			0.188 in	0.156 in	4-40
Mounting Hardware HI-TORQUE INSERT, BRASS IUTB-440 SI 1: $376 8.245In Stock	Mfr. Part # IUTB-440 Mouser Part # 153-IUTB-440	SI	Mounting Hardware HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	8.245In Stock	$376 $260 $208 $194 View $163 $158 $155 $150	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.158 in	0.226 in	0.179 in	4-40
Mounting Hardware STUD, CONCEALED, STAINLESS CFHC-440-6 PEM 1: $797 404In Stock	Mfr. Part # CFHC-440-6 Mouser Part # 153-CFHC-440-6	PEM	Mounting Hardware STUD, CONCEALED, STAINLESS	Datasheet	404In Stock	$797 $561 $449 $423 View $358 $343 $336 Quote	Min.: 1 Mult.: 1	Standoffs & Spacers	Round	Aluminum			5.2 mm	4-40	Male
Mounting Hardware NUT, PLAIN, ALUMINIUM CLA-440-2 PEM 1: $376 971In Stock	Mfr. Part # CLA-440-2 Mouser Part # 153-CLA-440-2	PEM	Mounting Hardware NUT, PLAIN, ALUMINIUM Learn More about PEM cl self clinching nuts	Datasheet	971In Stock	$376 $265 $213 $201 View $169 $162 $158 $153	Min.: 1 Mult.: 1	Screws & Fasteners	Self Clinching	Aluminum		4.2 mm	6.4 mm	4-40
Mounting Hardware STUD, BROACHING, PHOS BRONZE KFH-440-6ET PEM 1: $330 2.444In Stock 17.000On Order	Mfr. Part # KFH-440-6ET Mouser Part # 153-KFH-440-6ET	PEM	Mounting Hardware STUD, BROACHING, PHOS BRONZE Learn More about PEM kfh broaching studs	Datasheet	2.444In Stock 17.000On Order On Order Ship Dates Mfr. #: KFH-440-6ET Stock: 2.444 Can Ship Immediately On Order: 7.000 Pending 10.000 Expected 12/2/2026 Factory Lead-Time: 24 Weeks	$330 $230 $185 $173 View $147 $140 $138 $132	Min.: 1 Mult.: 1	Screws & Fasteners	Broaching Stud	Steel				4-40
Mounting Hardware THERMOPLASTIC INSERT,STAINLESS NFPC-440 SI 1: $741 10In Stock 10.000Expected 3/12/2027	Mfr. Part # NFPC-440 Mouser Part # 153-NFPC-440	SI	Mounting Hardware THERMOPLASTIC INSERT,STAINLESS Learn More about SI press in inserts	Datasheet	10In Stock 10.000Expected 3/12/2027	$741 $523 $419 $394 View $335 $320 $313 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.187 in	0.23 in	0.187 in	4-40