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

4-40 Hardware

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

Types of Hardware

List Images

Results: 2,928

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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Standoffs & Spacers HEX .187X.875 ALUM 1896 Keystone Electronics 1: $0.78 7,807In Stock	Mfr. Part No. 1896 Mouser Part No 534-1896	Keystone Electronics	Standoffs & Spacers HEX .187X.875 ALUM Learn More about Keystone Electronics keystone female threaded standoffs	Datasheet	7,807In Stock	$0.78 $0.606 $0.559 $0.484 View $0.402 $0.36 $0.333 $0.309	Min.: 1 Mult.: 1
Standoffs & Spacers M-F BRS HEX 4 X.625" 1945 Keystone Electronics 1: $0.97 7,436In Stock 14,000On Order	Mfr. Part No. 1945 Mouser Part No 534-1945	Keystone Electronics	Standoffs & Spacers M-F BRS HEX 4 X.625" Learn More about Keystone Electronics keystone mf threaded standoffs	Datasheet	7,436In Stock 14,000On Order On Order Ship Dates Mfr. No: 1945 Stock: 7,436 Can Dispatch Immediately On Order: 4,000 Expected 27/11/2026 10,000 Expected 11/01/2027 Factory Lead Time: 18 Weeks	$0.97 $0.82 $0.793 $0.674 View $0.495 $0.458 $0.447	Min.: 1 Mult.: 1
Standoffs & Spacers .187 Rnd Swage Thrd 4-40 x .187 2261-2 Keystone Electronics 1: $0.69 5,646In Stock	Mfr. Part No. 2261-2 Mouser Part No 534-2261-2	Keystone Electronics	Standoffs & Spacers .187 Rnd Swage Thrd 4-40 x .187	Datasheet	5,646In Stock	$0.69 $0.539 $0.524 $0.495 View $0.422 $0.307 $0.282 $0.262	Min.: 1 Mult.: 1
Standoffs & Spacers NYLON SPCR HEX 1/4" 4800 Keystone Electronics 1: $0.58 9,767In Stock	Mfr. Part No. 4800 Mouser Part No 534-4800	Keystone Electronics	Standoffs & Spacers NYLON SPCR HEX 1/4" Learn More about Keystone Electronics keystone mf threaded standoffs	Datasheet	9,767In Stock	$0.58 $0.443 $0.396 $0.336 View $0.29 $0.266 $0.243 $0.225	Min.: 1 Mult.: 1
Standoffs & Spacers Steel Thread Stdoff .250" 4-40 .166/.244 4883 Keystone Electronics 1: $0.63 21,577In Stock	Mfr. Part No. 4883 Mouser Part No 534-4883	Keystone Electronics	Standoffs & Spacers Steel Thread Stdoff .250" 4-40 .166/.244 Learn More about Keystone Electronics keystone smt threaded standoffs	Datasheet	21,577In Stock	Cut Tape $0.63 $0.477 $0.427 $0.362 Reel $0.292 View $0.275 $0.253 $0.24 MouseReel Available	Min.: 1 Mult.: 1 : 650
Screws & Fasteners SEMS JACK SCREW 7235 Keystone Electronics 1: $0.47 8,311In Stock 72,600On Order	Mfr. Part No. 7235 Mouser Part No 534-7235	Keystone Electronics	Screws & Fasteners SEMS JACK SCREW Learn More about Keystone Electronics keystone 187 jack screws	Datasheet	8,311In Stock 72,600On Order On Order Ship Dates Mfr. No: 7235 Stock: 8,311 Can Dispatch Immediately On Order: 26,600 Expected 28/12/2026 46,000 Expected 04/01/2027 Factory Lead Time: 15 Weeks	$0.47 $0.413 $0.376 $0.308 View $0.263 $0.219 $0.201 $0.192	Min.: 1 Mult.: 1
Standoffs & Spacers AL .375 M/F THRD 8400 Keystone Electronics 1: $0.54 50,250In Stock	Mfr. Part No. 8400 Mouser Part No 534-8400	Keystone Electronics	Standoffs & Spacers AL .375 M/F THRD Learn More about Keystone Electronics keystone mf threaded standoffs	Datasheet	50,250In Stock	$0.54 $0.461 $0.44 $0.361 View $0.31 $0.249 $0.229 $0.209	Min.: 1 Mult.: 1
Standoffs & Spacers AL .500 M/F THRD 8401 Keystone Electronics 1: $0.70 10,435In Stock 25,000Expected 16/11/2026	Mfr. Part No. 8401 Mouser Part No 534-8401	Keystone Electronics	Standoffs & Spacers AL .500 M/F THRD Learn More about Keystone Electronics keystone mf threaded standoffs	Datasheet	10,435In Stock 25,000Expected 16/11/2026	$0.70 $0.549 $0.521 $0.466 View $0.392 $0.313 $0.276 $0.264	Min.: 1 Mult.: 1
Standoffs & Spacers AL .750 M/F THRD 8403 Keystone Electronics 1: $0.69 11,522In Stock	Mfr. Part No. 8403 Mouser Part No 534-8403	Keystone Electronics	Standoffs & Spacers AL .750 M/F THRD Learn More about Keystone Electronics keystone mf threaded standoffs	Datasheet	11,522In Stock	$0.69 $0.561 $0.532 $0.476 View $0.40 $0.325 $0.28 $0.268	Min.: 1 Mult.: 1
Standoffs & Spacers 1/2" NYL 4-40 STDOFF 8440C Keystone Electronics 1: $1.05 4,820In Stock 8,500Expected 04/01/2027	Mfr. Part No. 8440C Mouser Part No 534-8440C	Keystone Electronics	Standoffs & Spacers 1/2" NYL 4-40 STDOFF Learn More about Keystone Electronics keystone female threaded standoffs	Datasheet	4,820In Stock 8,500Expected 04/01/2027	$1.05 $0.817 $0.795 $0.752 View $0.636 $0.512 $0.464 $0.431	Min.: 1 Mult.: 1
Standoffs & Spacers HEX 4-40 .75L NYLON 8440E Keystone Electronics 1: $1.29 14,123In Stock	Mfr. Part No. 8440E Mouser Part No 534-8440E	Keystone Electronics	Standoffs & Spacers HEX 4-40 .75L NYLON Learn More about Keystone Electronics keystone female threaded standoffs	Datasheet	14,123In Stock	$1.29 $0.993 $0.914 $0.894 View $0.868 $0.725 $0.638 $0.592 $0.56	Min.: 1 Mult.: 1
Standoffs & Spacers 3/16 HEX M/F STDOFF 11/16" 4-40 SS 4508-440-SS RAF Electronic Hardware 1: $1.18 4,939In Stock	Mfr. Part No. 4508-440-SS Mouser Part No 761-4508-440-SS	RAF Electronic Hardware	Standoffs & Spacers 3/16 HEX M/F STDOFF 11/16" 4-40 SS	Datasheet	4,939In Stock	$1.18 $0.956 $0.807 $0.763 View $0.719 $0.684 $0.68 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers 3/16 HEX 7/8" LNGTH ALUM 440 THREAD FC2063-440-A Fascomp 1: $0.58 5In Stock	Mfr. Part No. FC2063-440-A Mouser Part No 728-FC2063-440-A	Fascomp	Standoffs & Spacers 3/16 HEX 7/8" LNGTH ALUM 440 THREAD	Datasheet	5In Stock	$0.58 $0.415 $0.333 $0.299 View $0.278 $0.27 $0.255 $0.249 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers 3/16 HEX 11/16" LGTH ALUM 440 THREAD M/F FC4508-440-A Fascomp 1: $0.58 1In Stock	Mfr. Part No. FC4508-440-A Mouser Part No 728-FC4508-440-A	Fascomp	Standoffs & Spacers 3/16 HEX 11/16" LGTH ALUM 440 THREAD M/F	Datasheet	1In Stock	$0.58 $0.415 $0.333 $0.299 View $0.278 $0.27 $0.255 $0.249 Quote	Min.: 1 Mult.: 1
Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 1/4 in Lg 010440B025 Essentra 1: $0.10 2,972In Stock	Mfr. Part No. 010440B025 Mouser Part No 144-010440B025	Essentra	Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 1/4 in Lg	Datasheet	2,972In Stock	$0.10 $0.084 $0.071 $0.066 View $0.06 $0.056 $0.052 $0.049	Min.: 1 Mult.: 1
Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 9/32 in Lg 010440B028 Essentra 1: $0.10 920In Stock	Mfr. Part No. 010440B028 Mouser Part No 144-010440B028	Essentra	Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 9/32 in Lg	Datasheet	920In Stock	$0.10 $0.057 $0.055 $0.053 $0.05	Min.: 1 Mult.: 1
Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 5/8 in Lg 010440B062 Essentra 1: $0.10 1,101In Stock	Mfr. Part No. 010440B062 Mouser Part No 144-010440B062	Essentra	Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 5/8 in Lg	Datasheet	1,101In Stock	$0.10 $0.06 $0.05 $0.047 View $0.043 $0.04 $0.037	Min.: 1 Mult.: 1
Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 3/4 in Lg 010440B075 Essentra 1: $0.10 523In Stock	Mfr. Part No. 010440B075 Mouser Part No 144-010440B075	Essentra	Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 3/4 in Lg	Datasheet	523In Stock	$0.10 $0.059 $0.05 $0.049 $0.046	Min.: 1 Mult.: 1
Screws & Fasteners Binder Combination Screw, #4-40 Thread, 1/4 Lg 010440CD025 Essentra 1: $0.10 6,027In Stock	Mfr. Part No. 010440CD025 Mouser Part No 144-010440CD025	Essentra	Screws & Fasteners Binder Combination Screw, #4-40 Thread, 1/4 Lg Learn More about Essentra 01cd combo binder head screws	Datasheet	6,027In Stock	$0.10 $0.087 $0.073 $0.068 View $0.062 $0.059 $0.058 $0.041	Min.: 1 Mult.: 1
Screws & Fasteners Binder Combination Screw, #4-40 Thread, 5/16 Lg 010440CD031 Essentra 1: $0.10 1,939In Stock	Mfr. Part No. 010440CD031 Mouser Part No 144-010440CD031	Essentra	Screws & Fasteners Binder Combination Screw, #4-40 Thread, 5/16 Lg Learn More about Essentra 01cd combo binder head screws	Datasheet	1,939In Stock	$0.10 $0.088 $0.074 $0.069 View $0.063 $0.059 $0.055 $0.052 $0.05	Min.: 1 Mult.: 1
Screws & Fasteners Binder Combination Screw, #4-40 Thread, 3/8 Lg 010440CD037 Essentra 1: $0.10 2,715In Stock	Mfr. Part No. 010440CD037 Mouser Part No 144-010440CD037	Essentra	Screws & Fasteners Binder Combination Screw, #4-40 Thread, 3/8 Lg Learn More about Essentra 01cd combo binder head screws	Datasheet	2,715In Stock	$0.10 $0.088 $0.074 $0.069 View $0.063 $0.059 $0.055 $0.052 $0.05	Min.: 1 Mult.: 1
Screws & Fasteners Binder Combination Screw, #4-40 Thread, 3/4 Lg 010440CD075 Essentra 1: $0.12 90In Stock	Mfr. Part No. 010440CD075 Mouser Part No 144-010440CD075	Essentra	Screws & Fasteners Binder Combination Screw, #4-40 Thread, 3/4 Lg Learn More about Essentra 01cd combo binder head screws	Datasheet	90In Stock	$0.12 $0.103 $0.087 $0.081 View $0.074 $0.07 $0.063 $0.062 $0.06	Min.: 1 Mult.: 1
Screws & Fasteners Fillister Slottted Screw, #4-40 Thread, 1/8 Lg 010440F018 Essentra 1: $0.10 1,637In Stock	Mfr. Part No. 010440F018 Mouser Part No 144-010440F018	Essentra	Screws & Fasteners Fillister Slottted Screw, #4-40 Thread, 1/8 Lg	Datasheet	1,637In Stock	$0.10 $0.083 $0.07 $0.065 View $0.059 $0.056 $0.052 $0.051 $0.048	Min.: 1 Mult.: 1
Screws & Fasteners Fillister Slottted Screw, #4-40 Thread, 3/8 Lg 010440F037 Essentra 1: $0.10 9,370In Stock	Mfr. Part No. 010440F037 Mouser Part No 144-010440F037	Essentra	Screws & Fasteners Fillister Slottted Screw, #4-40 Thread, 3/8 Lg	Datasheet	9,370In Stock	$0.10 $0.085 $0.072 $0.067 View $0.061 $0.057 $0.053 $0.05 $0.048	Min.: 1 Mult.: 1
Screws & Fasteners Pan Slotted Screw, #4-40 Thread, 3/16 Lg 010440P018 Essentra 1: $0.10 961In Stock	Mfr. Part No. 010440P018 Mouser Part No 144-010440P018	Essentra	Screws & Fasteners Pan Slotted Screw, #4-40 Thread, 3/16 Lg	Datasheet	961In Stock	$0.10 $0.083 $0.07 $0.065 View $0.059 $0.056 $0.055 $0.051 $0.048	Min.: 1 Mult.: 1

4-40 Hardware

Types of Hardware

Applied Filters:

Customer Service Office

Company

Resources

Support

Share This

4-40 Hardware

Types of Hardware

Applied Filters: