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

4-40 Mounting Fixings

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

Results: 208

Applied Filters:

Thread Size = 4-40

Manufacturer

Product

Type

Material

Mounting Hole Size

Length

Outside Diameter

Thickness

Gender

Packaging

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.	Product	Type	Material	Length	Outside Diameter	Thickness	Thread Size	Packaging
Mounting Fixings THRD BRKT STL Z PL 621 Keystone Electronics 1: $0.44 187,023In Stock 45,500On Order	Mfr. Part No. 621 Mouser Part No 534-621	Keystone Electronics	Mounting Fixings THRD BRKT STL Z PL	Datasheet	187,023In Stock 45,500On Order On Order Ship Dates Mfr. No: 621 Stock: 187,023 Can Dispatch Immediately On Order: 5,500 Pending 40,000 Expected 09/11/2026 Factory Lead Time: 11 Weeks	$0.44 $0.352 $0.312 $0.266 View $0.26 $0.223 $0.197 $0.183 $0.176	Min.: 1 Mult.: 1	Brackets		Steel	9.53 mm		1.57 mm	4-40	Bulk
Mounting Fixings POST MOLD FLANGE INSERT ALUM PFLA-440-1 SI 1: $0.46 990In Stock	Mfr. Part No. PFLA-440-1 Mouser Part No 153-PFLA-440-1	SI	Mounting Fixings POST MOLD FLANGE INSERT ALUM Learn More about SI press in inserts	Datasheet	990In Stock	$0.46 $0.328 $0.262 $0.236 View $0.219 $0.213 $0.201 $0.197 $0.19	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	0.166 in	0.219 in		4-40
Mounting Fixings BOW-TIE CLIP 2060 Keystone Electronics 1: $0.81 6,249In Stock	Mfr. Part No. 2060 Mouser Part No 534-2060	Keystone Electronics	Mounting Fixings BOW-TIE CLIP	Datasheet	6,249In Stock	$0.81 $0.67 $0.617 $0.582 View $0.511 $0.369 $0.351 $0.337	Min.: 1 Mult.: 1	Mounts		Steel	13.97 mm	0.007 in		4-40	Bulk
Mounting Fixings THRD BRKT STL Z PL 612 Keystone Electronics 1: $0.37 31,445In Stock	Mfr. Part No. 612 Mouser Part No 534-612	Keystone Electronics	Mounting Fixings THRD BRKT STL Z PL	Datasheet	31,445In Stock	$0.37 $0.282 $0.252 $0.213 View $0.177 $0.162 $0.147 $0.137	Min.: 1 Mult.: 1	Brackets		Steel	9.53 mm		1.57 mm	4-40	Bulk
Mounting Fixings THRD BRKT BRS T PL 616 Keystone Electronics 1: $0.51 17,424In Stock	Mfr. Part No. 616 Mouser Part No 534-616	Keystone Electronics	Mounting Fixings THRD BRKT BRS T PL	Datasheet	17,424In Stock	$0.51 $0.435 $0.396 $0.324 View $0.277 $0.231 $0.211 $0.195	Min.: 1 Mult.: 1	Brackets		Brass	11.51 mm		1.57 mm	4-40	Bulk
Mounting Fixings THREADED PRESS IN INSERT 440 .175 LENGTH CKS-440-1 PEM 1: $0.93 875In Stock	Mfr. Part No. CKS-440-1 Mouser Part No 153-CKS-440-1	PEM	Mounting Fixings THREADED PRESS IN INSERT 440 .175 LENGTH Learn More about PEM castsert threaded inserts	Datasheet	875In Stock	$0.93 $0.695 $0.541 $0.51 View $0.499 $0.482 $0.465 $0.449 $0.442	Min.: 1 Mult.: 1	Inserts	Threaded Insert		0.175 in			4-40
Mounting Fixings THREADED PRESS IN INSERT 440 .300 LENGTH CKS-440-2 PEM 1: $1.08 1,000In Stock	Mfr. Part No. CKS-440-2 Mouser Part No 153-CKS-440-2	PEM	Mounting Fixings THREADED PRESS IN INSERT 440 .300 LENGTH Learn More about PEM castsert threaded inserts	Datasheet	1,000In Stock	$1.08 $0.809 $0.629 $0.593 View $0.58 $0.561 $0.542 $0.522 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert		0.3 in			4-40
Mounting Fixings NUT,BROACHING,STEEL,HEAT SINK HSR-440-2ET PEM 1: $0.53 80In Stock	Mfr. Part No. HSR-440-2ET Mouser Part No 153-HSR-440-2ET	PEM	Mounting Fixings NUT,BROACHING,STEEL,HEAT SINK	Datasheet	80In Stock	$0.53 $0.383 $0.306 $0.276 View $0.256 $0.249 $0.235 $0.23 $0.222	Min.: 1 Mult.: 1	Screws & Fasteners	Broaching Nut					4-40
Mounting Fixings NUT,BROACHING,STEEL,HEAT SINK HSR-440-3ET PEM 1: $0.56 39In Stock	Mfr. Part No. HSR-440-3ET Mouser Part No 153-HSR-440-3ET	PEM	Mounting Fixings NUT,BROACHING,STEEL,HEAT SINK	Datasheet	39In Stock	$0.56 $0.40 $0.32 $0.288 View $0.267 $0.26 $0.245 $0.24 $0.232	Min.: 1 Mult.: 1	Screws & Fasteners	Broaching Nut					4-40
Mounting Fixings MOLD-IN INSERT, BLIND, ALUM IBA-440-4 SI 1: $0.29 882In Stock	Mfr. Part No. IBA-440-4 Mouser Part No 153-IBA-440-4	SI	Mounting Fixings MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	882In Stock	$0.29 $0.21 $0.168 $0.151 View $0.14 $0.137 $0.129 $0.126 $0.122	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	0.205 in	0.188 in		4-40
Mounting Fixings MOLD-IN INSERT, BLIND, ALUM IBA-440-6 SI 1: $0.31 1,000In Stock	Mfr. Part No. IBA-440-6 Mouser Part No 153-IBA-440-6	SI	Mounting Fixings MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	1,000In Stock	$0.31 $0.223 $0.178 $0.161 View $0.149 $0.145 $0.137 $0.134 $0.129	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	0.281 in	0.188 in		4-40
Mounting Fixings MOLD-IN INSERT, BRASS ITB-440 SI 1: $0.36 842In Stock	Mfr. Part No. ITB-440 Mouser Part No 153-ITB-440	SI	Mounting Fixings MOLD-IN INSERT, BRASS Learn More about SI molded in inserts	Datasheet	842In Stock	$0.36 $0.258 $0.207 $0.186 View $0.173 $0.168 $0.158 $0.155 $0.15	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Leaded Brass	0.188 in	0.188 in		4-40
Mounting Fixings FLOATER,ASSEMBLY,LOCKING,STEEL LAS-440-2MD PEM 1: $2.27 313In Stock	Mfr. Part No. LAS-440-2MD Mouser Part No 153-LAS-440-2MD	PEM	Mounting Fixings FLOATER,ASSEMBLY,LOCKING,STEEL	Datasheet	313In Stock	$2.27 $1.69 $1.31 $1.24 View $1.21 $1.17 $1.13 $1.09 Quote	Min.: 1 Mult.: 1	Screws & Fasteners						4-40
Mounting Fixings PF11MW FLOATING PF W/MATHREAD PF11MW-440-11 PEM 1: $2.63 236In Stock	Mfr. Part No. PF11MW-440-11 Mouser Part No 153-PF11MW-440-11	PEM	Mounting Fixings PF11MW FLOATING PF W/MATHREAD	Datasheet	236In Stock	$2.63 $2.43 $2.17 $2.04 View $1.97 $1.91 $1.84 $1.78 Quote	Min.: 1 Mult.: 1							4-40
Mounting Fixings PF11 W/MATP, BLACK PLASTIC CAP PF11PM-440-0B PEM 1: $2.44 525In Stock	Mfr. Part No. PF11PM-440-0B Mouser Part No 153-PF11PM-440-0B	PEM	Mounting Fixings PF11 W/MATP, BLACK PLASTIC CAP	Datasheet	525In Stock	$2.44 $2.26 $2.01 $1.89 View $1.83 $1.77 $1.71 $1.65 Quote	Min.: 1 Mult.: 1							4-40
Mounting Fixings PF11 W/MATP, BLACK PLASTIC CAP PF11PM-440-1B PEM 1: $2.44 272In Stock	Mfr. Part No. PF11PM-440-1B Mouser Part No 153-PF11PM-440-1B	PEM	Mounting Fixings PF11 W/MATP, BLACK PLASTIC CAP	Datasheet	272In Stock	$2.44 $2.26 $2.01 $1.89 View $1.83 $1.77 $1.71 $1.65 Quote	Min.: 1 Mult.: 1							4-40
Mounting Fixings PF11 W/MATP, BLACK PLASTIC CAP PF11PM-440-2B PEM 1: $2.39 8In Stock	Mfr. Part No. PF11PM-440-2B Mouser Part No 153-PF11PM-440-2B	PEM	Mounting Fixings PF11 W/MATP, BLACK PLASTIC CAP	Datasheet	8In Stock	$2.39 $2.22 $1.98 $1.86 View $1.80 $1.74 $1.68 $1.62 Quote	Min.: 1 Mult.: 1							4-40
Mounting Fixings PANEL FASTENER,ASSY,LOW PROFIL PF31-440-30CN PEM 1: $3.06 69In Stock	Mfr. Part No. PF31-440-30CN Mouser Part No 153-PF31-440-30CN	PEM	Mounting Fixings PANEL FASTENER,ASSY,LOW PROFIL	Datasheet	69In Stock	$3.06 $2.83 $2.54 $2.15 View $2.13 $2.06 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Captive Panel	Steel				4-40
Mounting Fixings PF52-440-1CN PEM 1: $2.51 426In Stock	Mfr. Part No. PF52-440-1CN Mouser Part No 153-PF52-440-1CN	PEM	Mounting Fixings	Datasheet	426In Stock	$2.51 $2.32 $2.07 $1.94 View $1.88 $1.82 $1.76 $1.69 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Captive Panel					4-40
Mounting Fixings PF7M W/MATHREAD PF7M-440-0CN PEM 1: $2.34 216In Stock	Mfr. Part No. PF7M-440-0CN Mouser Part No 153-PF7M-440-0CN	PEM	Mounting Fixings PF7M W/MATHREAD	Datasheet	216In Stock	$2.34 $2.17 $1.93 $1.81 View $1.76 $1.70 $1.64 $1.58 Quote	Min.: 1 Mult.: 1							4-40
Mounting Fixings POST MOLD FLANGE INSERT BRASS PFLB-440-2 SI 1: $0.48 697In Stock	Mfr. Part No. PFLB-440-2 Mouser Part No 153-PFLB-440-2	SI	Mounting Fixings POST MOLD FLANGE INSERT BRASS Learn More about SI press in inserts	Datasheet	697In Stock	$0.48 $0.342 $0.273 $0.246 View $0.229 $0.222 $0.21 $0.205 $0.198	Min.: 1 Mult.: 1	Inserts	Threaded Insert		0.228 in	0.219 in		4-40
Mounting Fixings POST MOLD-IN INSERT, ALUM PKA-440 SI 1: $0.42 720In Stock	Mfr. Part No. PKA-440 Mouser Part No 153-PKA-440	SI	Mounting Fixings POST MOLD-IN INSERT, ALUM Learn More about SI press in inserts	Datasheet	720In Stock	$0.42 $0.298 $0.239 $0.215 View $0.20 $0.194 $0.183 $0.179 $0.173	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	0.188 in	0.156 in		4-40
Mounting Fixings NUT,LOCKING NYLON,PEMHEX,STEEL PL-440-ZI PEM 1: $0.76 3,770In Stock	Mfr. Part No. PL-440-ZI Mouser Part No 153-PL-440-ZI	PEM	Mounting Fixings NUT,LOCKING NYLON,PEMHEX,STEEL	Datasheet	3,770In Stock	$0.76 $0.535 $0.428 $0.403 View $0.342 $0.327 $0.32 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Lock Nut					4-40
Mounting Fixings POST MOLD INSERT, ALUMINUM PPA-440-2 SI 1: $0.39 730In Stock	Mfr. Part No. PPA-440-2 Mouser Part No 153-PPA-440-2	SI	Mounting Fixings POST MOLD INSERT, ALUMINUM Learn More about SI press in inserts	Datasheet	730In Stock	$0.39 $0.278 $0.223 $0.201 View $0.186 $0.181 $0.171 $0.167 $0.161	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	0.25 in	0.169 in		4-40
Mounting Fixings RIGHT ANGLE CLINCH NUT RAA4-9-6 PEM 1: $0.79 800In Stock	Mfr. Part No. RAA4-9-6 Mouser Part No 153-RAA4-9-6	PEM	Mounting Fixings RIGHT ANGLE CLINCH NUT	Datasheet	800In Stock	$0.79 $0.592 $0.461 $0.434 View $0.425 $0.411 $0.397 $0.382 $0.377	Min.: 1 Mult.: 1	Screws & Fasteners			0.187 in			4-40