4-40 – Mouser Singapore

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

Results: 3,057

Applied Filters:

Thread Size = 4-40

Manufacturer

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 (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Screws & Fasteners Hex Nut, #4-40 Thread, .124 Height 0400440HNS Essentra 1: $0.34 904In Stock	Mfr. Part No. 0400440HNS Mouser Part No 144-0400440HNS	Essentra	Screws & Fasteners Hex Nut, #4-40 Thread, .124 Height	Datasheet	904In Stock	$0.34 $0.313 $0.265 $0.248 View $0.228 $0.215 $0.192 $0.185 $0.169	Min.: 1 Mult.: 1
Screws & Fasteners Hex Nut, #4-40 Thread, .124 Height 0400440HNSB Essentra 1: $0.367 700In Stock New Product	Mfr. Part No. 0400440HNSB Mouser Part No 144-0400440HNSB New Product	Essentra	Screws & Fasteners Hex Nut, #4-40 Thread, .124 Height	Datasheet	700In Stock	$0.367 $0.339 $0.288 $0.269 View $0.249 $0.234 $0.22 $0.218 $0.212	Min.: 1 Mult.: 1
Screws & Fasteners Cap Nut, #4-40 Thread, .280 Height 0500440CNB Essentra 1: $0.272 400In Stock	Mfr. Part No. 0500440CNB Mouser Part No 144-0500440CNB	Essentra	Screws & Fasteners Cap Nut, #4-40 Thread, .280 Height		400In Stock	$0.272 $0.25 $0.212 $0.199 View $0.182 $0.171 $0.16 $0.146 $0.14	Min.: 1 Mult.: 1
Screws & Fasteners Thumb Nut, Knurled, Slotted, #4-40 Thread 0500440SCNB Essentra 1: $0.272 980In Stock New Product	Mfr. Part No. 0500440SCNB Mouser Part No 144-0500440SCNB New Product	Essentra	Screws & Fasteners Thumb Nut, Knurled, Slotted, #4-40 Thread	Datasheet	980In Stock	$0.272 $0.25 $0.212 $0.199 View $0.182 $0.171 $0.16 $0.158 $0.154	Min.: 1 Mult.: 1
Screws & Fasteners Wing Nut, #4-40 Thread, .48 Height 0600440WN Essentra 1: $0.367 212In Stock	Mfr. Part No. 0600440WN Mouser Part No 144-0600440WN	Essentra	Screws & Fasteners Wing Nut, #4-40 Thread, .48 Height	Datasheet	212In Stock	$0.367 $0.341 $0.29 $0.271 View $0.261 $0.231 $0.222 $0.204 $0.192	Min.: 1 Mult.: 1
Screws & Fasteners Locking Hex Nut, #4-40 Thread, .100 Height 0700440LN Essentra 1: $0.245 3,053In Stock 5,000Expected 3/11/2026	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 3/11/2026	$0.245 $0.216 $0.184 $0.167 View $0.158 $0.146 $0.122 $0.118 $0.116	Min.: 1 Mult.: 1
Screws & Fasteners Self Threading Lock Nut, #4-40, .200 Height 0700440SLN Essentra 1: $0.19 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	$0.19 $0.169 $0.141 $0.132 View $0.121 $0.12 $0.092 $0.086 $0.083	Min.: 1 Mult.: 1
Screws & Fasteners Thumb Nut, Knurled, #4-40 Thread, .280 Height 0800440TNA Essentra 1: $0.354 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	$0.354 $0.321 $0.272 $0.254 View $0.235 $0.222 $0.208 $0.19 $0.185	Min.: 1 Mult.: 1
Screws & Fasteners Slotted Thumb Screw, #4-40 Thread, 9/64 Lg 090440014TEG Essentra 1: $0.245 2,689In Stock	Mfr. Part No. 090440014TEG Mouser Part No 144-090440014TEG	Essentra	Screws & Fasteners Slotted Thumb Screw, #4-40 Thread, 9/64 Lg	Datasheet	2,689In Stock	$0.245 $0.216 $0.182 $0.171 View $0.156 $0.148 $0.128 $0.124 $0.12	Min.: 1 Mult.: 1
Screws & Fasteners Knurled Thumb Screw, #4-40 Thread, 3/16 Lg 090440018T Essentra 1: $0.299 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	$0.299 $0.277 $0.235 $0.22 View $0.203 $0.189 $0.177 $0.162 $0.154	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 3/32 Lg 3404400009 Essentra 1: $0.177 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	$0.177 $0.162 $0.137 $0.128 View $0.117 $0.11 $0.102 $0.099 $0.09	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 1/4 Lg 3404400025 Essentra 1: $0.177 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	$0.177 $0.162 $0.137 $0.128 View $0.117 $0.11 $0.102 $0.099 $0.097	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 9/32 Lg 3404400028 Essentra 1: $0.177 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	$0.177 $0.162 $0.137 $0.128 View $0.117 $0.11 $0.102 $0.099 $0.09	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 3/8 Lg 3404400037 Essentra 1: $0.177 338In Stock 1,000Expected 5/11/2026	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 5/11/2026	$0.177 $0.162 $0.137 $0.128 View $0.117 $0.11 $0.102 $0.099 $0.09	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 7/16 Lg 3404400043 Essentra 1: $0.177 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	$0.177 $0.162 $0.137 $0.128 View $0.117 $0.11 $0.102 $0.099 $0.097	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 1/2 Lg 3404400050 Essentra 1: $0.177 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	$0.177 $0.16 $0.136 $0.126 View $0.116 $0.109 $0.102 $0.099 $0.097	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 5/8 Lg 3404400062 Essentra 1: $0.177 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	$0.177 $0.162 $0.137 $0.128 View $0.117 $0.11 $0.102 $0.099 $0.09	Min.: 1 Mult.: 1
Screws & Fasteners Hex Socket Cap Screw, #4-40 Thread, 1 1/2 Lg 3404400150 Essentra 1: $0.177 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	$0.177 $0.162 $0.137 $0.128 View $0.117 $0.11 $0.102 $0.099 $0.097	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 4-40 Barrel Thumbscrew Backshell Hardware 6.10mm / 0.240" B71E014254 Northern Technologies 1: $0.53 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	$0.53 $0.453 $0.405 $0.386 View $0.344 $0.321 $0.301 $0.298 $0.292	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 4-40 Barrel Thumbscrew Backshell Hardware 6.10mm / 0.240" B71E014256 Northern Technologies 1: $0.68 5,300In Stock 45,000On Order New At Mouser	Mfr. Part No. B71E014256 Mouser Part No 19-B71E014256 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	5,300In Stock 45,000On Order On Order Ship Dates Mfr. No: B71E014256 Stock: 5,300 Can Dispatch Immediately On Order: 15,500 Expected 29/10/2026 29,500 Expected 11/12/2026 Factory Lead Time: 9 Weeks	$0.68 $0.581 $0.518 $0.494 View $0.441 $0.419 $0.393 $0.379	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 4-40 Barrel Thumbscrew Backshell Hardware 5.08mm / 0.200" B71E014276 Northern Technologies 1: $0.721 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	$0.721 $0.611 $0.545 $0.52 View $0.464 $0.437 $0.422 $0.401 $0.389	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 4-40 Jackscrew, Thumb Screw Backshell Hardware 6.096mm B71E014289 Northern Technologies 1: $1.01 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	$1.01 $0.854 $0.763 $0.726 View $0.649 $0.616 $0.578 $0.564 $0.549	Min.: 1 Mult.: 1
D-Sub Tools & Hardware 4-40 X 1.28 THUMBSCREW ZN B71E014299 Northern Technologies 1: $1.24 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	$1.24 $1.07 $0.981 $0.885 View $0.808 $0.668 $0.626 $0.597 $0.568	Min.: 1 Mult.: 1
D-Sub Tools & Hardware D-Sub Connector Jackscrews C89E014050 Northern Technologies 1: $2.28 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	$2.28 $1.94 $1.74 $1.58 View $1.50 $1.43 $1.34 $1.27 $1.23	Min.: 1 Mult.: 1
D-Sub Tools & Hardware JACK SCREW KIT 3342-4 3M Electronic Solutions Division 1: $3.35 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	$3.35 $3.02 $2.83 $2.69 View $2.49 $2.37 $2.24 $2.12	Min.: 1 Mult.: 1