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4-40 Connectors

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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.
D-Sub Tools & Hardware 4-40 PAN HEAD SCREW length .350" 5229996-3 TE Connectivity / AMP 1: $0.24 20,267In Stock	Mfr. Part # 5229996-3 Mouser Part # 571-5229996-3	TE Connectivity / AMP	D-Sub Tools & Hardware 4-40 PAN HEAD SCREW length .350"	Datasheet	20,267In Stock	$0.24 $0.209 $0.191 $0.178 View $0.163 $0.149 $0.134 $0.13 $0.119	Min.: 1 Mult.: 1
D-Sub Tools & Hardware HOOD DB37/HD62 METAL SDC37AG L-Com 1: $29.26 52In Stock New At Mouser	Mfr. Part # SDC37AG Mouser Part # 17-SDC37AG New At Mouser	L-Com	D-Sub Tools & Hardware HOOD DB37/HD62 METAL	Datasheet	52In Stock	$29.26 $26.99 $25.30 $24.17 View $22.57 $22.56 $22.44 Quote	Min.: 1 Mult.: 1
D-Sub Tools & Hardware FCT SCREW SET 4-40/4-40 18.7 NM 173114-0170 Molex 1: $5.42 213In Stock	Mfr. Part # 173114-0170 Mouser Part # 152-173114-0170	Molex	D-Sub Tools & Hardware FCT SCREW SET 4-40/4-40 18.7 NM	Datasheet	213In Stock	$5.42 $4.93 $4.67 $4.56 View $4.34 $3.80 $3.69 $3.15 $2.93	Min.: 1 Mult.: 1
D-Sub Tools & Hardware FCT SCREW SET 4-40/4-40 12.9 173112-0597 Molex 1: $1.49 450In Stock	Mfr. Part # 173112-0597 Mouser Part # 152-173112-0597	Molex	D-Sub Tools & Hardware FCT SCREW SET 4-40/4-40 12.9	Datasheet	450In Stock	$1.49 $1.30 $1.24 $1.16 View $1.05 $0.971 $0.87 $0.84 $0.80	Min.: 1 Mult.: 1
D-Sub Tools & Hardware SCRW RETAINER KIT 5746881-2 TE Connectivity / AMP 1: $2.31 10,000In Stock	Mfr. Part # 5746881-2 Mouser Part # 571-5746881-2	TE Connectivity / AMP	D-Sub Tools & Hardware SCRW RETAINER KIT	Datasheet	10,000In Stock	$2.31 $2.07 $1.98 $1.85 View $1.72 $1.65 $1.58 $1.51 $1.13	Min.: 1 Mult.: 1
Standard Circular Connector CeeLok FAS-T Receptacle Kit, PCB,NI,A 2102351-3 TE Connectivity / AMP 1: $352.93 35In Stock	Mfr. Part # 2102351-3 Mouser Part # 571-2102351-3	TE Connectivity / AMP	Standard Circular Connector CeeLok FAS-T Receptacle Kit, PCB,NI,A	Datasheet	35In Stock	$352.93 $340.61 $331.92	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 4-40 X 0.430 D-SUB COVER SCREW B71E314165S Northern Technologies 1: $0.59 1,000In Stock New At Mouser	Mfr. Part # B71E314165S Mouser Part # 19-B71E314165S New At Mouser	Northern Technologies	D-Sub Tools & Hardware 4-40 X 0.430 D-SUB COVER SCREW	Datasheet	1,000In Stock	$0.59 $0.507 $0.464 $0.419 View $0.382 $0.321 $0.301 $0.288 $0.273	Min.: 1 Mult.: 1
D-Sub Tools & Hardware I/O DSUB CONNECTOR JACK SCREW KIT 3342-4-KIT 3M Electronic Solutions Division 1: $2.59 15In Stock	Mfr. Part # 3342-4-KIT Mouser Part # 517-3342-4-KIT	3M Electronic Solutions Division	D-Sub Tools & Hardware I/O DSUB CONNECTOR JACK SCREW KIT	Datasheet	15In Stock	$2.59 $2.36 $2.24 $1.80 View $1.76 $1.73 $1.62 $1.58 $1.53	Min.: 1 Mult.: 1
D-Sub Tools & Hardware I/O MOUNTINGS SCREWS AND SETS 7000057926 3M Electronic Specialty 1: $7.36 44In Stock	Mfr. Part # 7000057926 Mouser Part # 517-7000057926	3M Electronic Specialty	D-Sub Tools & Hardware I/O MOUNTINGS SCREWS AND SETS	Datasheet	44In Stock	$7.36 $6.66 $6.29 $5.76 View $4.88 $4.79 $4.64 $4.37 $4.28	Min.: 1 Mult.: 1
D-Sub Tools & Hardware HOOD DB9/HD15 METAL SDC9AG L-Com 1: $13.81 716In Stock New At Mouser	Mfr. Part # SDC9AG Mouser Part # 17-SDC9AG New At Mouser	L-Com	D-Sub Tools & Hardware HOOD DB9/HD15 METAL Learn More about L-Com l com d sub connectors	Datasheet	716In Stock	$13.81 $12.48 $11.67 $11.11 View $10.33 $9.64 $9.02 Quote	Min.: 1 Mult.: 1
D-Sub Tools & Hardware FCT THMB SCREW 4-40UNC 55.6 W/CAP 173112-0426 Molex 1: $2.16 1,574In Stock	Mfr. Part # 173112-0426 Mouser Part # 152-173112-0426	Molex	D-Sub Tools & Hardware FCT THMB SCREW 4-40UNC 55.6 W/CAP	Datasheet	1,574In Stock	$2.16 $1.89 $1.80 $1.68 View $1.52 $1.40 $1.25 $1.17 $1.12	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 10PACK FEMALE SCREW L17-D20418-2-TX Amphenol Commercial Products 1: $6.42 373In Stock 800Expected 12/21/2026	Mfr. Part # L17-D20418-2-TX Mouser Part # 523-17-D20418-2-TX	Amphenol Commercial Products	D-Sub Tools & Hardware 10PACK FEMALE SCREW	Datasheet	373In Stock 800Expected 12/21/2026	$6.42 $5.43 $5.30 $4.96 View $4.70 $4.69 $4.62	Min.: 1 Mult.: 1
D-Sub Tools & Hardware SCREW 4-40 5.59mm 5205979-1 TE Connectivity / AMP 1: $1.02 3,546In Stock	Mfr. Part # 5205979-1 Mouser Part # 571-5205979-1	TE Connectivity / AMP	D-Sub Tools & Hardware SCREW 4-40 5.59mm Learn More about TE Connectivity / AMP te connectivity amplimite military dsub connectors	Datasheet	3,546In Stock	$1.02 $0.866 $0.773 $0.736 View $0.69 $0.657 $0.612 $0.573 $0.539	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 4-40 PAN HEAD SCREW length .425" 5229996-2 TE Connectivity 1: $0.85 3,680In Stock	Mfr. Part # 5229996-2 Mouser Part # 571-5229996-2	TE Connectivity	D-Sub Tools & Hardware 4-40 PAN HEAD SCREW length .425"	Datasheet	3,680In Stock	$0.85 $0.726 $0.648 $0.617 View $0.578 $0.55 $0.504 $0.473 $0.455	Min.: 1 Mult.: 1
D-Sub Tools & Hardware FEMALE SCREWLOCK 5748271-3 TE Connectivity 1: $4.81 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	$4.81 $4.32 $4.11 $3.94 View $3.75 $3.52 $3.49 $3.26 $3.06	Min.: 1 Mult.: 1
D-Sub Tools & Hardware SCREWLOCK FOR STRT VERSION 09660009972 HARTING 1: $1.06 3,918In Stock	Mfr. Part # 09660009972 Mouser Part # 617-09-66-000-9972	HARTING	D-Sub Tools & Hardware SCREWLOCK FOR STRT VERSION	Datasheet	3,918In Stock	$1.06 $0.973 $0.869 $0.827 View $0.765 $0.738 $0.702 $0.658 $0.653	Min.: 1 Mult.: 1
D-Sub Tools & Hardware SCREWLOCK UNC 13MM 2pc=1 connector 09670009922 HARTING 1: $1.12 13,437In Stock	Mfr. Part # 09670009922 Mouser Part # 617-09-67-000-9922	HARTING	D-Sub Tools & Hardware SCREWLOCK UNC 13MM 2pc=1 connector	Datasheet	13,437In Stock	$1.12 $0.952 $0.85 $0.809 View $0.748 $0.722 $0.687 $0.657 $0.638	Min.: 1 Mult.: 1
D-Sub Tools & Hardware FML SCREW LOCK 4-40 THRD 13MM 09670009924 HARTING 1: $1.28 7,555In Stock	Mfr. Part # 09670009924 Mouser Part # 617-09-67-000-9924	HARTING	D-Sub Tools & Hardware FML SCREW LOCK 4-40 THRD 13MM	Datasheet	7,555In Stock	$1.28 $1.12 $1.04 $0.984 View $0.913 $0.881 $0.839 $0.801	Min.: 1 Mult.: 1
D-Sub Tools & Hardware SCREWLOCK FOR R/A VERSION 09670009972 HARTING 1: $0.63 27,676In Stock	Mfr. Part # 09670009972 Mouser Part # 617-09-67-000-9972	HARTING	D-Sub Tools & Hardware SCREWLOCK FOR R/A VERSION	Datasheet	27,676In Stock	$0.63 $0.539 $0.481 $0.457 View $0.408 $0.386 $0.362 $0.353 $0.328	Min.: 1 Mult.: 1
D-Sub Tools & Hardware FML SCREW LOCK 4-40 THRD 18MM 09670009973 HARTING 1: $1.29 4,459In Stock	Mfr. Part # 09670009973 Mouser Part # 617-09-67-000-9973	HARTING	D-Sub Tools & Hardware FML SCREW LOCK 4-40 THRD 18MM	Datasheet	4,459In Stock	$1.29 $1.10 $0.982 $0.934 View $0.865 $0.834 $0.795 $0.792 $0.744	Min.: 1 Mult.: 1
D-Sub Tools & Hardware D-SUB ML SCRWLK 4-40 09670009971 HARTING 1: $0.79 5,647In Stock	Mfr. Part # 09670009971 Mouser Part # 617-09670009971	HARTING	D-Sub Tools & Hardware D-SUB ML SCRWLK 4-40 Learn More about HARTING backshell d sub connectors	Datasheet	5,647In Stock	$0.79 $0.672 $0.60 $0.57 View $0.509 $0.491 $0.46 $0.449 $0.418	Min.: 1 Mult.: 1
D-Sub Tools & Hardware HEX EXTENDER KIT 4-40 UNC 09670019985 HARTING 1: $2.51 1,550In Stock 1,800Expected 11/6/2026	Mfr. Part # 09670019985 Mouser Part # 617-09670019985	HARTING	D-Sub Tools & Hardware HEX EXTENDER KIT 4-40 UNC	Datasheet	1,550In Stock 1,800Expected 11/6/2026	$2.51 $2.14 $1.91 $1.81 View $1.68 $1.61 $1.44	Min.: 1 Mult.: 1
D-Sub Tools & Hardware F screw lock for PCB 863001019TLF Amphenol Commercial Products 1: $0.52 13,664In Stock	Mfr. Part # 863001019TLF Mouser Part # 649-863001019TLF	Amphenol Commercial Products	D-Sub Tools & Hardware F screw lock for PCB Learn More about Amphenol Commercial Products amphenol commercial d sub io connectors	Datasheet	13,664In Stock	$0.52 $0.374 $0.344 $0.323 View $0.301 $0.30 $0.294 $0.286 $0.265	Min.: 1 Mult.: 1
D-Sub Tools & Hardware Male screw lock 9 15 25 Pin & Socket 863005ATLF Amphenol Commercial Products 1: $1.25 3,406In Stock	Mfr. Part # 863005ATLF Mouser Part # 649-863005ATLF	Amphenol Commercial Products	D-Sub Tools & Hardware Male screw lock 9 15 25 Pin & Socket Learn More about Amphenol Commercial Products amphenol fci d sub io connectors	Datasheet	3,406In Stock	$1.25 $1.14 $1.02 $0.966 View $0.906 $0.863 $0.821 $0.76 $0.755	Min.: 1 Mult.: 1
D-Sub Tools & Hardware HOOD DB15 METAL RIGHT ANG SDRA15AG L-Com 1: $22.30 116In Stock 674On Order New At Mouser	Mfr. Part # SDRA15AG Mouser Part # 17-SDRA15AG New At Mouser	L-Com	D-Sub Tools & Hardware HOOD DB15 METAL RIGHT ANG	Datasheet	116In Stock 674On Order On Order Ship Dates Mfr. #: SDRA15AG Stock: 116 Can Ship Immediately On Order: 285 Pending 44 Expected 10/16/2026 345 Expected 1/1/2027 Factory Lead-Time: 16 Weeks	$22.30 $18.95 $17.76 $16.92 View $16.11 $15.10 $14.38	Min.: 1 Mult.: 1

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