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.
Standoffs & Spacers NYLON SPCR HEX 1/4" 4800 Keystone Electronics 1: £0.496 10,291In 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	10,291In Stock	£0.496 £0.379 £0.339 £0.287 View £0.248 £0.228 £0.208 £0.193	Min.: 1 Mult.: 1
Standoffs & Spacers Steel Thread Stdoff .250" 4-40 .166/.244 4883 Keystone Electronics 1: £0.539 21,767In 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	21,767In Stock	Cut Tape £0.539 £0.408 £0.365 £0.31 Reel £0.25 View £0.236 £0.217 £0.205 MouseReel Available	Min.: 1 Mult.: 1 : 650
Standoffs & Spacers AL .375 M/F THRD 8400 Keystone Electronics 1: £0.462 51,310In 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	51,310In Stock	£0.462 £0.395 £0.376 £0.309 View £0.265 £0.213 £0.196 £0.179	Min.: 1 Mult.: 1
Standoffs & Spacers AL .500 M/F THRD 8401 Keystone Electronics 1: £0.599 10,935In Stock 25,000Expected 23/11/2026	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	10,935In Stock 25,000Expected 23/11/2026	£0.599 £0.47 £0.446 £0.399 View £0.335 £0.268 £0.236 £0.226	Min.: 1 Mult.: 1
Standoffs & Spacers AL .750 M/F THRD 8403 Keystone Electronics 1: £0.59 12,032In 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	12,032In Stock	£0.59 £0.48 £0.455 £0.407 View £0.342 £0.278 £0.239 £0.23	Min.: 1 Mult.: 1
Standoffs & Spacers AL 1.000 M/F THRD 8405 Keystone Electronics 1: £0.736 8,271In Stock	Mfr. Part No. 8405 Mouser Part No 534-8405	Keystone Electronics	Standoffs & Spacers AL 1.000 M/F THRD Learn More about Keystone Electronics keystone mf threaded standoffs	Datasheet	8,271In Stock	£0.736 £0.702 £0.701 £0.389 View £0.302 £0.291	Min.: 1 Mult.: 1
Standoffs & Spacers 1/2" NYL 4-40 STDOFF 8440C Keystone Electronics 1: £0.899 5,820In 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	5,820In Stock 8,500Expected 04/01/2027	£0.899 £0.699 £0.68 £0.643 View £0.544 £0.438 £0.397 £0.368	Min.: 1 Mult.: 1
Standoffs & Spacers HEX 4-40 .75L NYLON 8440E Keystone Electronics 1: £1.10 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	£1.10 £0.849 £0.782 £0.765 View £0.743 £0.621 £0.546 £0.506 £0.479	Min.: 1 Mult.: 1
Screws & Fasteners 5/6 LNGTH 11/64 DIA 4-40 THRD CAP SCREW 0818-SS RAF Electronic Hardware 1: £1.01 2,495In Stock	Mfr. Part No. 0818-SS Mouser Part No 761-0818-SS	RAF Electronic Hardware	Screws & Fasteners 5/6 LNGTH 11/64 DIA 4-40 THRD CAP SCREW	Datasheet	2,495In Stock	£1.01 £0.943 £0.814 £0.77 View £0.734 £0.698 £0.646	Min.: 1 Mult.: 1
Standoffs & Spacers 3/16 HEX M/F STDOFF 11/16" 4-40 SS 4508-440-SS RAF Electronic Hardware 1: £1.11 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	£1.11 £0.899 £0.761 £0.719 View £0.678 £0.645 £0.641 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers 3/16 HEX 11/16" LGTH ALUM 440 THREAD M/F FC4508-440-A Fascomp 1: £0.546 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	£0.546 £0.391 £0.314 £0.282 View £0.262 £0.255 £0.24 £0.235 Quote	Min.: 1 Mult.: 1
Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 1/4 in Lg 010440B025 Essentra 1: £0.075 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	£0.075 £0.063 £0.053 £0.05 View £0.045 £0.042 £0.039 £0.037	Min.: 1 Mult.: 1
Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 9/32 in Lg 010440B028 Essentra 1: £0.075 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	£0.075 £0.043 £0.041 £0.04 £0.038	Min.: 1 Mult.: 1
Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 5/8 in Lg 010440B062 Essentra 1: £0.075 1,201In Stock	Mfr. Part No. 010440B062 Mouser Part No 144-010440B062	Essentra	Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 5/8 in Lg	Datasheet	1,201In Stock	£0.075 £0.045 £0.038 £0.035 View £0.032 £0.03 £0.028	Min.: 1 Mult.: 1
Screws & Fasteners Binder Slotted Screw, #4-40 Thread, 3/4 in Lg 010440B075 Essentra 1: £0.075 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	£0.075 £0.045 £0.038 £0.037 £0.035	Min.: 1 Mult.: 1
Screws & Fasteners Binder Combination Screw, #4-40 Thread, 1/4 Lg 010440CD025 Essentra 1: £0.075 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	£0.075 £0.065 £0.055 £0.051 View £0.046 £0.045 £0.044 £0.031	Min.: 1 Mult.: 1
Screws & Fasteners Binder Combination Screw, #4-40 Thread, 5/16 Lg 010440CD031 Essentra 1: £0.075 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	£0.075 £0.066 £0.056 £0.052 View £0.047 £0.045 £0.041 £0.039 £0.038	Min.: 1 Mult.: 1
Screws & Fasteners Binder Combination Screw, #4-40 Thread, 3/8 Lg 010440CD037 Essentra 1: £0.075 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	£0.075 £0.066 £0.056 £0.052 View £0.047 £0.045 £0.041 £0.039 £0.038	Min.: 1 Mult.: 1
Screws & Fasteners Binder Combination Screw, #4-40 Thread, 3/4 Lg 010440CD075 Essentra 1: £0.09 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	£0.09 £0.078 £0.065 £0.061 View £0.056 £0.052 £0.047 £0.046 £0.045	Min.: 1 Mult.: 1
Screws & Fasteners Fillister Slottted Screw, #4-40 Thread, 1/8 Lg 010440F018 Essentra 1: £0.075 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	£0.075 £0.062 £0.052 £0.049 View £0.045 £0.042 £0.039 £0.038 £0.036	Min.: 1 Mult.: 1
Screws & Fasteners Fillister Slottted Screw, #4-40 Thread, 3/8 Lg 010440F037 Essentra 1: £0.075 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	£0.075 £0.064 £0.054 £0.051 View £0.045 £0.043 £0.04 £0.038 £0.036	Min.: 1 Mult.: 1
Screws & Fasteners Pan Slotted Screw, #4-40 Thread, 3/16 Lg 010440P018 Essentra 1: £0.075 981In Stock	Mfr. Part No. 010440P018 Mouser Part No 144-010440P018	Essentra	Screws & Fasteners Pan Slotted Screw, #4-40 Thread, 3/16 Lg	Datasheet	981In Stock	£0.075 £0.062 £0.052 £0.049 View £0.045 £0.042 £0.041 £0.038 £0.036	Min.: 1 Mult.: 1
Screws & Fasteners Pan Slotted Screw, #4-40 Thread, 1/4 Lg 010440P025 Essentra 1: £0.075 6,110In Stock	Mfr. Part No. 010440P025 Mouser Part No 144-010440P025	Essentra	Screws & Fasteners Pan Slotted Screw, #4-40 Thread, 1/4 Lg	Datasheet	6,110In Stock	£0.075 £0.063 £0.053 £0.05 View £0.045 £0.042 £0.039 £0.037	Min.: 1 Mult.: 1
Screws & Fasteners Pan Slotted Screw, #4-40 Thread, 5/16 Lg 010440P031 Essentra 1: £0.075 1,963In Stock	Mfr. Part No. 010440P031 Mouser Part No 144-010440P031	Essentra	Screws & Fasteners Pan Slotted Screw, #4-40 Thread, 5/16 Lg	Datasheet	1,963In Stock	£0.075 £0.064 £0.053 £0.051 View £0.045 £0.043 £0.042 £0.038 £0.036	Min.: 1 Mult.: 1
Screws & Fasteners Pan Slotted Screw, 4-40 Thread, 3/8 Lg 010440P037 Essentra 1: £0.075 1,252In Stock	Mfr. Part No. 010440P037 Mouser Part No 144-010440P037	Essentra	Screws & Fasteners Pan Slotted Screw, 4-40 Thread, 3/8 Lg	Datasheet	1,252In Stock	£0.075 £0.064 £0.054 £0.051 View £0.045 £0.043 £0.04 £0.038 £0.036	Min.: 1 Mult.: 1