4-40 – Mouser United Kingdom

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
Screws & Fasteners Wing Nut, #4-40 Thread, .48 Height 0600440WN Essentra 1: £0.203 212In Stock	Mfr. Part No. 0600440WN Mouser Part No 144-0600440WN	Essentra	Screws & Fasteners Wing Nut, #4-40 Thread, .48 Height	Datasheet	212In Stock	£0.203 £0.189 £0.16 £0.149 View £0.144 £0.127 £0.122 £0.113 £0.106	Min.: 1 Mult.: 1
Screws & Fasteners Locking Hex Nut, #4-40 Thread, .100 Height 0700440LN Essentra 1: £0.135 3,053In Stock 5,000Expected 03/11/2026	Mfr. Part No. 0700440LN Mouser Part No 144-0700440LN	Essentra	Screws & Fasteners Locking Hex Nut, #4-40 Thread, .100 Height	Datasheet	3,053In Stock 5,000Expected 03/11/2026	£0.135 £0.12 £0.101 £0.093 View £0.087 £0.08 £0.067 £0.065 £0.064	Min.: 1 Mult.: 1
Screws & Fasteners Self Threading Lock Nut, #4-40, .200 Height 0700440SLN Essentra 1: £0.105 2,090In Stock	Mfr. Part No. 0700440SLN Mouser Part No 144-0700440SLN	Essentra	Screws & Fasteners Self Threading Lock Nut, #4-40, .200 Height		2,090In Stock	£0.105 £0.093 £0.078 £0.072 View £0.067 £0.066 £0.051 £0.047 £0.045	Min.: 1 Mult.: 1
Screws & Fasteners Thumb Nut, Knurled, #4-40 Thread, .280 Height 0800440TNA Essentra 1: £0.196 1,152In Stock	Mfr. Part No. 0800440TNA Mouser Part No 144-0800440TNA	Essentra	Screws & Fasteners Thumb Nut, Knurled, #4-40 Thread, .280 Height	Datasheet	1,152In Stock	£0.196 £0.177 £0.15 £0.141 View £0.13 £0.122 £0.115 £0.105 £0.102	Min.: 1 Mult.: 1
Screws & Fasteners Slotted Thumb Screw, #4-40 Thread, 9/64 Lg 090440014TEG Essentra 1: £0.135 967In Stock	Mfr. Part No. 090440014TEG Mouser Part No 144-090440014TEG	Essentra	Screws & Fasteners Slotted Thumb Screw, #4-40 Thread, 9/64 Lg	Datasheet	967In Stock	£0.135 £0.12 £0.10 £0.094 View £0.086 £0.082 £0.071 £0.068 £0.066	Min.: 1 Mult.: 1
Screws & Fasteners Knurled Thumb Screw, #4-40 Thread, 3/16 Lg 090440018T Essentra 1: £0.165 151In Stock 500On Order	Mfr. Part No. 090440018T Mouser Part No 144-090440018T	Essentra	Screws & Fasteners Knurled Thumb Screw, #4-40 Thread, 3/16 Lg	Datasheet	151In Stock 500On Order	£0.165 £0.153 £0.13 £0.121 View £0.112 £0.105 £0.098 £0.089 £0.085	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 3/32 Lg 3404400009 Essentra 1: £0.098 980In Stock	Mfr. Part No. 3404400009 Mouser Part No 144-3404400009	Essentra	Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 3/32 Lg	Datasheet	980In Stock	£0.098 £0.089 £0.076 £0.071 View £0.065 £0.061 £0.057 £0.055 £0.05	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 1/4 Lg 3404400025 Essentra 1: £0.098 1,169In Stock	Mfr. Part No. 3404400025 Mouser Part No 144-3404400025	Essentra	Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 1/4 Lg	Datasheet	1,169In Stock	£0.098 £0.089 £0.076 £0.071 View £0.065 £0.061 £0.057 £0.055 £0.053	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 9/32 Lg 3404400028 Essentra 1: £0.098 960In Stock	Mfr. Part No. 3404400028 Mouser Part No 144-3404400028	Essentra	Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 9/32 Lg	Datasheet	960In Stock	£0.098 £0.089 £0.076 £0.071 View £0.065 £0.061 £0.057 £0.055 £0.05	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 3/8 Lg 3404400037 Essentra 1: £0.098 338In Stock 1,000Expected 05/11/2026	Mfr. Part No. 3404400037 Mouser Part No 144-3404400037	Essentra	Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 3/8 Lg	Datasheet	338In Stock 1,000Expected 05/11/2026	£0.098 £0.089 £0.076 £0.071 View £0.065 £0.061 £0.057 £0.055 £0.05	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 7/16 Lg 3404400043 Essentra 1: £0.098 900In Stock	Mfr. Part No. 3404400043 Mouser Part No 144-3404400043	Essentra	Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 7/16 Lg	Datasheet	900In Stock	£0.098 £0.089 £0.076 £0.071 View £0.065 £0.061 £0.057 £0.055 £0.053	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 1/2 Lg 3404400050 Essentra 1: £0.098 1,000In Stock	Mfr. Part No. 3404400050 Mouser Part No 144-3404400050	Essentra	Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 1/2 Lg	Datasheet	1,000In Stock	£0.098 £0.088 £0.075 £0.07 View £0.064 £0.06 £0.057 £0.055 £0.053	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 5/8 Lg 3404400062 Essentra 1: £0.098 850In Stock	Mfr. Part No. 3404400062 Mouser Part No 144-3404400062	Essentra	Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 5/8 Lg	Datasheet	850In Stock	£0.098 £0.089 £0.076 £0.071 View £0.065 £0.061 £0.057 £0.055 £0.05	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 1 1/2 Lg 3404400150 Essentra 1: £0.098 504In Stock	Mfr. Part No. 3404400150 Mouser Part No 144-3404400150	Essentra	Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 1 1/2 Lg	Datasheet	504In Stock	£0.098 £0.089 £0.076 £0.071 View £0.065 £0.061 £0.057 £0.055 £0.053	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 4-40 Barrel Thumbscrew Backshell Hardware 6.10mm / 0.240" B71E014254 Northern Technologies 1: £0.292 944In Stock New At Mouser	Mfr. Part No. B71E014254 Mouser Part No 19-B71E014254 New At Mouser	Northern Technologies	D-Sub Tools & Hardware 4-40 Barrel Thumbscrew Backshell Hardware 6.10mm / 0.240" Learn More about Northern Technologies northern tech steel cap straight barrel thumbscrews	Datasheet	944In Stock	£0.292 £0.25 £0.223 £0.213 View £0.19 £0.177 £0.166 £0.164 £0.162	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 4-40 Barrel Thumbscrew Backshell Hardware 5.08mm / 0.200" B71E014276 Northern Technologies 1: £0.398 4,662In Stock New At Mouser	Mfr. Part No. B71E014276 Mouser Part No 19-B71E014276 New At Mouser	Northern Technologies	D-Sub Tools & Hardware 4-40 Barrel Thumbscrew Backshell Hardware 5.08mm / 0.200" Learn More about Northern Technologies northern tech steel cap straight barrel thumbscrews	Datasheet	4,662In Stock	£0.398 £0.337 £0.301 £0.287 View £0.256 £0.241 £0.233 £0.222 £0.215	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 4-40 Jackscrew, Thumb Screw Backshell Hardware 6.096mm B71E014289 Northern Technologies 1: £0.555 1,575In Stock New At Mouser	Mfr. Part No. B71E014289 Mouser Part No 19-B71E014289 New At Mouser	Northern Technologies	D-Sub Tools & Hardware 4-40 Jackscrew, Thumb Screw Backshell Hardware 6.096mm Learn More about Northern Technologies northern tech steel cap straight barrel thumbscrews	Datasheet	1,575In Stock	£0.555 £0.471 £0.421 £0.401 View £0.358 £0.34 £0.32 £0.312 £0.303	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 4-40 X 1.28 THUMBSCREW ZN B71E014299 Northern Technologies 1: £0.684 300In Stock New At Mouser	Mfr. Part No. B71E014299 Mouser Part No 19-B71E014299 New At Mouser	Northern Technologies	D-Sub Tools & Hardware 4-40 X 1.28 THUMBSCREW ZN	Datasheet	300In Stock	£0.684 £0.593 £0.541 £0.489 View £0.446 £0.368 £0.346 £0.33 £0.313	Min.: 1 Mult.: 1
D-Sub Tools & Hardware D-Sub Connector Jackscrews C89E014050 Northern Technologies 1: £1.26 200In Stock New At Mouser	Mfr. Part No. C89E014050 Mouser Part No 19-C89E014050 New At Mouser	Northern Technologies	D-Sub Tools & Hardware D-Sub Connector Jackscrews Learn More about Northern Technologies northern tech d sub female screw set extender kit	Datasheet	200In Stock	£1.26 £1.07 £0.96 £0.871 View £0.826 £0.788 £0.738 £0.704 £0.677	Min.: 1 Mult.: 1
D-Sub Tools & Hardware JACK SCREW KIT 3342-4 3M Electronic Solutions Division 1: £1.85 911In Stock 900Expected 23/11/2026	Mfr. Part No. 3342-4 Mouser Part No 517-3342-4	3M Electronic Solutions Division	D-Sub Tools & Hardware JACK SCREW KIT	Datasheet	911In Stock 900Expected 23/11/2026	£1.85 £1.67 £1.56 £1.48 View £1.37 £1.31 £1.24 £1.17	Min.: 1 Mult.: 1
Standoffs & Spacers HEX .187X.250 ZBRASS 1450 Keystone Electronics 1: £0.479 6,055In Stock	Mfr. Part No. 1450 Mouser Part No 534-1450	Keystone Electronics	Standoffs & Spacers HEX .187X.250 ZBRASS Learn More about Keystone Electronics keystone female threaded standoffs	Datasheet	6,055In Stock	£0.479 £0.368 £0.329 £0.301 View £0.278 £0.223 £0.206 £0.181	Min.: 1 Mult.: 1
Standoffs & Spacers RND .187X.250 ZBRASS 1547 Keystone Electronics 1: £0.642 2,200In Stock	Mfr. Part No. 1547 Mouser Part No 534-1547	Keystone Electronics	Standoffs & Spacers RND .187X.250 ZBRASS Learn More about Keystone Electronics keystone female threaded standoffs	Datasheet	2,200In Stock	£0.642 £0.486 £0.441 £0.374 View £0.354 £0.282 £0.259 £0.248	Min.: 1 Mult.: 1
Standoffs & Spacers SWAGE STDOFF 1/8"L 1560A Keystone Electronics 1: £0.574 1,387In Stock	Mfr. Part No. 1560A Mouser Part No 534-1560A	Keystone Electronics	Standoffs & Spacers SWAGE STDOFF 1/8"L	Datasheet	1,387In Stock	£0.574 £0.433 £0.395 £0.335 View £0.278 £0.255 £0.23 £0.217	Min.: 1 Mult.: 1
Standoffs & Spacers 4-40 X .250 STDOFF 1625-2 Keystone Electronics 1: £1.20 703In Stock	Mfr. Part No. 1625-2 Mouser Part No 534-1625-2	Keystone Electronics	Standoffs & Spacers 4-40 X .250 STDOFF	Datasheet	703In Stock	£1.20 £0.934 £0.899 £0.89 View £0.79 £0.553 £0.501 £0.496	Min.: 1 Mult.: 1
Standoffs & Spacers .109" SWAGE THREADED STANDOFF 1628-2 Keystone Electronics 1: £0.83 70In Stock	Mfr. Part No. 1628-2 Mouser Part No 534-1628-2	Keystone Electronics	Standoffs & Spacers .109" SWAGE THREADED STANDOFF	Datasheet	70In Stock	£0.83 £0.641 £0.59 £0.563 View £0.474 £0.373 £0.34 £0.325	Min.: 1 Mult.: 1