4-40 – Mouser Singapore

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Screws & Fasteners 4-40X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw R4-40X1 2701 APM HEXSEAL 1: $1.16 480In Stock	Mfr. Part No. R4-40X1 2701 Mouser Part No 608-R4-40X1	APM HEXSEAL	Screws & Fasteners 4-40X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	480In Stock	$1.16 $0.982 $0.921 $0.866 View $0.804 $0.762 $0.604	Min.: 1 Mult.: 1
Screws & Fasteners 4-40X3/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw R4-40X3/8 2701 APM HEXSEAL 1: $0.802 2,952In Stock	Mfr. Part No. R4-40X3/8 2701 Mouser Part No 608-R4-40X3/8	APM HEXSEAL	Screws & Fasteners 4-40X3/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	2,952In Stock	$0.802 $0.675 $0.631 $0.594 View $0.549 $0.521 $0.495 $0.484	Min.: 1 Mult.: 1
Screws & Fasteners 4-40X5/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw R4-40X5/16 2701 APM HEXSEAL 1: $0.762 87In Stock	Mfr. Part No. R4-40X5/16 2701 Mouser Part No 608-R4-40X5/16	APM HEXSEAL	Screws & Fasteners 4-40X5/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw	Datasheet	87In Stock	$0.762 $0.646 $0.604 $0.568 View $0.526 $0.498 $0.473	Min.: 1 Mult.: 1
Screws & Fasteners 4-40X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw R4-40X5/8 2701 APM HEXSEAL 1: $0.83 371In Stock	Mfr. Part No. R4-40X5/8 2701 Mouser Part No 608-R4-40X5/8	APM HEXSEAL	Screws & Fasteners 4-40X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	371In Stock	$0.83 $0.704 $0.658 $0.62 View $0.574 $0.544 $0.517	Min.: 1 Mult.: 1
Screws & Fasteners 4-40X7/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw R4-40X7/16 2701 APM HEXSEAL 1: $0.816 335In Stock 850Expected 4/11/2026	Mfr. Part No. R4-40X7/16 2701 Mouser Part No 608-R4-40X7/16	APM HEXSEAL	Screws & Fasteners 4-40X7/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	335In Stock 850Expected 4/11/2026	$0.816 $0.685 $0.641 $0.602 View $0.558 $0.528 $0.50	Min.: 1 Mult.: 1
Screws & Fasteners 4-40X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw R4-40X7/8 2701 APM HEXSEAL 1: $0.898 293In Stock	Mfr. Part No. R4-40X7/8 2701 Mouser Part No 608-R4-40X7/8	APM HEXSEAL	Screws & Fasteners 4-40X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	293In Stock	$0.898 $0.762 $0.713 $0.67 View $0.622 $0.589 $0.56	Min.: 1 Mult.: 1
Screws & Fasteners SEELSKREW FH REC 4-40 THD 1/4" NBR SFR4-40 X 1/4 2701 APM HEXSEAL 1: $0.952 1,745In Stock	Mfr. Part No. SFR4-40 X 1/4 2701 Mouser Part No 608-SFR4-40X1/42701	APM HEXSEAL	Screws & Fasteners SEELSKREW FH REC 4-40 THD 1/4" NBR		1,745In Stock	$0.952 $0.734 $0.669 $0.589 View $0.545 $0.517	Min.: 1 Mult.: 1
Screws & Fasteners 1/2 LNGTH 1/4 DIA 4-40 THRD CAP SCREW 0369-SS RAF Electronic Hardware 1: $1.84 172In Stock	Mfr. Part No. 0369-SS Mouser Part No 761-0369-SS	RAF Electronic Hardware	Screws & Fasteners 1/2 LNGTH 1/4 DIA 4-40 THRD CAP SCREW	Datasheet	172In Stock	$1.84 $1.71 $1.48 $1.40 View $1.31 $1.25 $1.19	Min.: 1 Mult.: 1
Screws & Fasteners 5/8 LNGTH 1/4 DIA 4-40 THRD CAP SCREW 0371-SS RAF Electronic Hardware 1: $3.16 37In Stock	Mfr. Part No. 0371-SS Mouser Part No 761-0371-SS	RAF Electronic Hardware	Screws & Fasteners 5/8 LNGTH 1/4 DIA 4-40 THRD CAP SCREW	Datasheet	37In Stock	$3.16 $3.02 $2.43 $2.28 View $2.18 $2.08 $2.00 $1.97	Min.: 1 Mult.: 1
Screws & Fasteners 1/4HD X 1.00 X 4-40 Thd Captive Panel 0377-SS RAF Electronic Hardware 1: $8.89 35In Stock	Mfr. Part No. 0377-SS Mouser Part No 761-0377-SS	RAF Electronic Hardware	Screws & Fasteners 1/4HD X 1.00 X 4-40 Thd Captive Panel	Datasheet	35In Stock	$8.89 $8.38 $7.78 $7.34 View $6.91 $6.54 $6.34 $6.09	Min.: 1 Mult.: 1
Screws & Fasteners 3/8 LNGTH 5/16 DIA 4-40 THRD CAP SCREW 0378-SS RAF Electronic Hardware 1: $3.39 35In Stock	Mfr. Part No. 0378-SS Mouser Part No 761-0378-SS	RAF Electronic Hardware	Screws & Fasteners 3/8 LNGTH 5/16 DIA 4-40 THRD CAP SCREW	Datasheet	35In Stock	$3.39 $3.07 $2.75 $2.18 View $2.03 $1.93 $1.85	Min.: 1 Mult.: 1
Screws & Fasteners 1/4 LNGTH 11/64 DIA 4-40 THRD CAP SCREW 0817-SS RAF Electronic Hardware 1: $2.19 159In Stock	Mfr. Part No. 0817-SS Mouser Part No 761-0817-SS	RAF Electronic Hardware	Screws & Fasteners 1/4 LNGTH 11/64 DIA 4-40 THRD CAP SCREW	Datasheet	159In Stock	$2.19 $1.86 $1.60 $1.48 View $1.47 $1.41 $1.40 $1.39	Min.: 1 Mult.: 1
Screws & Fasteners 9/16 LNGTH 11/64 DIA 4-40 THRD CAP SCREW 0822-SS RAF Electronic Hardware 1: $2.24 197In Stock	Mfr. Part No. 0822-SS Mouser Part No 761-0822-SS	RAF Electronic Hardware	Screws & Fasteners 9/16 LNGTH 11/64 DIA 4-40 THRD CAP SCREW	Datasheet	197In Stock	$2.24 $1.97 $1.77 $1.62 View $1.48 $1.40 $1.35 $1.33 $1.32	Min.: 1 Mult.: 1
Screws & Fasteners 5/8 LNGTH 11/64 DIA 4-40 THRD CAP SCREW 0823-SS RAF Electronic Hardware 1: $2.20 110In Stock 130Expected 3/11/2026	Mfr. Part No. 0823-SS Mouser Part No 761-0823-SS	RAF Electronic Hardware	Screws & Fasteners 5/8 LNGTH 11/64 DIA 4-40 THRD CAP SCREW	Datasheet	110In Stock 130Expected 3/11/2026	$2.20 $2.08 $1.92	Min.: 1 Mult.: 1
Screws & Fasteners 1" LNGTH 11/64 DIA 4-40 THRD CAP SCREW 0829-SS RAF Electronic Hardware 1: $2.67 245In Stock	Mfr. Part No. 0829-SS Mouser Part No 761-0829-SS	RAF Electronic Hardware	Screws & Fasteners 1" LNGTH 11/64 DIA 4-40 THRD CAP SCREW	Datasheet	245In Stock	$2.67 $2.50 $2.16 $2.05 View $1.92 $1.82 $1.74 $1.71 $1.70	Min.: 1 Mult.: 1
Standoffs & Spacers AL 4-40 3/4in 3/16in Round FEM Standoff 1641-440-AL RAF Electronic Hardware 1: $0.762 2,708In Stock	Mfr. Part No. 1641-440-AL Mouser Part No 761-1641-440-AL	RAF Electronic Hardware	Standoffs & Spacers AL 4-40 3/4in 3/16in Round FEM Standoff	Datasheet	2,708In Stock	$0.762 $0.604 $0.526 $0.486 View $0.465 $0.452 $0.439 $0.435 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers SS 4-40 1in 3/16in Round FEM Standoff 1645-440-SS RAF Electronic Hardware 1: $3.07 25In Stock	Mfr. Part No. 1645-440-SS Mouser Part No 761-1645-440-SS	RAF Electronic Hardware	Standoffs & Spacers SS 4-40 1in 3/16in Round FEM Standoff	Datasheet	25In Stock	$3.07 $2.46 $2.45 $2.37 View $2.30 $2.28 $2.27	Min.: 1 Mult.: 1
Standoffs & Spacers 1/4 Rd X 7/32 Length Round Standoff 1679T-440-AL RAF Electronic Hardware 1: $0.721 38In Stock	Mfr. Part No. 1679T-440-AL Mouser Part No 761-1679T-440-AL	RAF Electronic Hardware	Standoffs & Spacers 1/4 Rd X 7/32 Length Round Standoff	Datasheet	38In Stock	$0.721 $0.574 $0.499 $0.464 View $0.449 $0.409 $0.403 $0.388 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers 1/4 RD FM S/O 5/16 4-40 NYLON 1681-440-N RAF Electronic Hardware 1: $1.77 100In Stock	Mfr. Part No. 1681-440-N Mouser Part No 761-1681-440-N	RAF Electronic Hardware	Standoffs & Spacers 1/4 RD FM S/O 5/16 4-40 NYLON	Datasheet	100In Stock	$1.77 $1.36 $1.13 $1.07 View $0.942 $0.923 $0.917 $0.91 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers 1/4 RD FM S/O 3/8 4-40 NYLON 1682-440-N RAF Electronic Hardware 1: $1.43 223In Stock	Mfr. Part No. 1682-440-N Mouser Part No 761-1682-440-N	RAF Electronic Hardware	Standoffs & Spacers 1/4 RD FM S/O 3/8 4-40 NYLON	Datasheet	223In Stock	$1.43 $1.16 $1.01 $0.928 View $0.876 $0.857 $0.842 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers SS 4-40 3/8in 1/4in Round FEM Standoff 1682-440-SS RAF Electronic Hardware 1: $1.93 264In Stock	Mfr. Part No. 1682-440-SS Mouser Part No 761-1682-440-SS	RAF Electronic Hardware	Standoffs & Spacers SS 4-40 3/8in 1/4in Round FEM Standoff	Datasheet	264In Stock	$1.93 $1.44 $1.30 $1.29 $1.28	Min.: 1 Mult.: 1
Standoffs & Spacers 1/4 Rd X 7/16 Length Round Standoff 1683-440-AL RAF Electronic Hardware 1: $0.911 22In Stock	Mfr. Part No. 1683-440-AL Mouser Part No 761-1683-440-AL	RAF Electronic Hardware	Standoffs & Spacers 1/4 Rd X 7/16 Length Round Standoff	Datasheet	22In Stock	$0.911 $0.729 $0.636 $0.586 View $0.566 $0.549 $0.534 $0.529 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers 1/4 RD FM S/O 7/16 4-40 NYLON 1683-440-N RAF Electronic Hardware 1: $1.84 15In Stock	Mfr. Part No. 1683-440-N Mouser Part No 761-1683-440-N	RAF Electronic Hardware	Standoffs & Spacers 1/4 RD FM S/O 7/16 4-40 NYLON	Datasheet	15In Stock	$1.84 $1.37 $1.31 $1.26 View $1.25 $1.24 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers AL 4-40 5/8in 1/4in Round FEM Standoff 1686-440-AL RAF Electronic Hardware 1: $0.666 353In Stock	Mfr. Part No. 1686-440-AL Mouser Part No 761-1686-440-AL	RAF Electronic Hardware	Standoffs & Spacers AL 4-40 5/8in 1/4in Round FEM Standoff	Datasheet	353In Stock	$0.666 $0.486 $0.413 $0.35 View $0.333 $0.328 $0.311 $0.301 $0.291	Min.: 1 Mult.: 1
Standoffs & Spacers AL 4-40 3/4in 1/4in Round FEM Standoff 1688-440-AL RAF Electronic Hardware 1: $0.68 86In Stock	Mfr. Part No. 1688-440-AL Mouser Part No 761-1688-440-AL	RAF Electronic Hardware	Standoffs & Spacers AL 4-40 3/4in 1/4in Round FEM Standoff	Datasheet	86In Stock	$0.68 $0.544 $0.452 $0.415 View $0.401 $0.364 $0.355 $0.352 Quote	Min.: 1 Mult.: 1