.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: 2,927

Applied Filters:

Thread Size = 4-40

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; }

Part #

Standoffs & Spacers SWAGE THRD STDOFF .140"L 4-40 BRASS

1650-3
Keystone Electronics
1: $1.09
311In Stock

Mfr. Part No.
1650-3

Mouser Part No
534-1650-3

Keystone Electronics

Standoffs & Spacers SWAGE THRD STDOFF .140"L 4-40 BRASS

Datasheet

311In Stock

$1.09

$0.821

$0.734

$0.721

View

Min.: 1
Mult.: 1

Standoffs & Spacers .375X.140 RND 4-40 THRD

1651-3
Keystone Electronics
1: $1.67
28In Stock

Mfr. Part No.
1651-3

Mouser Part No
534-1651-3

Keystone Electronics

Standoffs & Spacers .375X.140 RND 4-40 THRD

Datasheet

28In Stock

$1.67

$1.27

$1.14

$0.987

View

Min.: 1
Mult.: 1

Standoffs & Spacers 4-40 X .250 STDOFF

1652-2
Keystone Electronics
1: $2.27
812In Stock

Mfr. Part No.
1652-2

Mouser Part No
534-1652-2

Keystone Electronics

Standoffs & Spacers 4-40 X .250 STDOFF

Datasheet

812In Stock

$2.27

$1.86

$1.04

$0.952

Min.: 1
Mult.: 1

Standoffs & Spacers HEX .187X1.00 ZBRASS

1656B
Keystone Electronics
1: $2.24
385In Stock

Mfr. Part No.
1656B

Mouser Part No
534-1656B

Keystone Electronics

Standoffs & Spacers HEX .187X1.00 ZBRASS

Learn More

Datasheet

385In Stock

$2.24

$1.71

$1.55

$1.52

View

Min.: 1
Mult.: 1

Standoffs & Spacers RND .187X.500 ZBRASS

1657
Keystone Electronics
1: $1.29
104In Stock
3,200On Order

Mfr. Part No.
1657

Mouser Part No
534-1657

Keystone Electronics

Standoffs & Spacers RND .187X.500 ZBRASS

Learn More

Datasheet

104In Stock

3,200On Order

$1.29

$0.968

$0.868

$0.843

View

Min.: 1
Mult.: 1

Standoffs & Spacers RND .187X.750 ZBRASS

1657A
Keystone Electronics
1: $1.69
39In Stock

Mfr. Part No.
1657A

Mouser Part No
534-1657A

Keystone Electronics

Standoffs & Spacers RND .187X.750 ZBRASS

Learn More

Datasheet

39In Stock

$1.69

$1.27

$1.14

$0.766

View

Min.: 1
Mult.: 1

Standoffs & Spacers RND .187X1.00 ZBRASS

1657B
Keystone Electronics
1: $2.23
370In Stock

Mfr. Part No.
1657B

Mouser Part No
534-1657B

Keystone Electronics

Standoffs & Spacers RND .187X1.00 ZBRASS

Learn More

Datasheet

370In Stock

$2.23

$1.70

$1.54

$1.50

View

Min.: 1
Mult.: 1

Standoffs & Spacers 4-40 X .250 STDOFF

1746-2
Keystone Electronics
1: $1.06
407In Stock

Mfr. Part No.
1746-2

Mouser Part No
534-1746-2

Keystone Electronics

Standoffs & Spacers 4-40 X .250 STDOFF

Datasheet

407In Stock

$1.06

$0.843

$0.80

$0.715

View

Min.: 1
Mult.: 1

Standoffs & Spacers HEX .250X.625 ALUM

1808
Keystone Electronics
1: $0.748
7,686In Stock

Mfr. Part No.
1808

Mouser Part No
534-1808

Keystone Electronics

Standoffs & Spacers HEX .250X.625 ALUM

Learn More

Datasheet

7,686In Stock

$0.748

$0.63

$0.568

$0.472

View

Min.: 1
Mult.: 1

Standoffs & Spacers HEX .250X.875 ALUM

1809
Keystone Electronics
1: $1.03
2,203In Stock
10,000Expected 7/12/2026

Mfr. Part No.
1809

Mouser Part No
534-1809

Keystone Electronics

Standoffs & Spacers HEX .250X.875 ALUM

Learn More

Datasheet

2,203In Stock

10,000Expected 7/12/2026

$1.03

$0.899

$0.499

$0.46

$0.388

Min.: 1
Mult.: 1

Standoffs & Spacers HEX .250X2.00 ZBRASS

1832
Keystone Electronics
1: $3.84
92In Stock

Mfr. Part No.
1832

Mouser Part No
534-1832

Keystone Electronics

Standoffs & Spacers HEX .250X2.00 ZBRASS

Datasheet

92In Stock

$3.84

$3.28

$3.16

$2.95

View

Min.: 1
Mult.: 1

Standoffs & Spacers RND .250X.625 ALUM

1839
Keystone Electronics
1: $0.802
137In Stock

Mfr. Part No.
1839

Mouser Part No
534-1839

Keystone Electronics

Standoffs & Spacers RND .250X.625 ALUM

Learn More

Datasheet

137In Stock

$0.802

$0.611

$0.545

$0.462

View

Min.: 1
Mult.: 1

Standoffs & Spacers RND .250X.875 ALUM

1846
Keystone Electronics
1: $1.22
192In Stock

Mfr. Part No.
1846

Mouser Part No
534-1846

Keystone Electronics

Standoffs & Spacers RND .250X.875 ALUM

Learn More

Datasheet

192In Stock

$1.22

$0.957

$0.908

$0.902

View

Min.: 1
Mult.: 1

Standoffs & Spacers RND .187X.375 ZBRASS

1864
Keystone Electronics
1: $1.12
30In Stock

Mfr. Part No.
1864

Mouser Part No
534-1864

Keystone Electronics

Standoffs & Spacers RND .187X.375 ZBRASS

Learn More

Datasheet

30In Stock

$1.12

$0.838

$0.749

$0.707

View

Min.: 1
Mult.: 1

Standoffs & Spacers RND .250X.625 ZBRASS

1867
Keystone Electronics
1: $1.60
48In Stock

Mfr. Part No.
1867

Mouser Part No
534-1867

Keystone Electronics

Standoffs & Spacers RND .250X.625 ZBRASS

Learn More

Datasheet

48In Stock

$1.60

$1.26

$1.21

$1.20

View

Min.: 1
Mult.: 1

Standoffs & Spacers HEX .187X1.00 ALUM

1897
Keystone Electronics
1: $1.14
867In Stock

Mfr. Part No.
1897

Mouser Part No
534-1897

Keystone Electronics

Standoffs & Spacers HEX .187X1.00 ALUM

Learn More

Datasheet

867In Stock

$1.14

$1.05

$1.03

$1.00

View

Min.: 1
Mult.: 1

Standoffs & Spacers 4-40 .750 HEX STDOFF

1921C
Keystone Electronics
1: $2.65
3In Stock

Mfr. Part No.
1921C

Mouser Part No
534-1921C

Keystone Electronics

Standoffs & Spacers 4-40 .750 HEX STDOFF

Learn More

Datasheet

3In Stock

$2.65

$2.00

$1.93

$1.21

Min.: 1
Mult.: 1

Standoffs & Spacers 4-40 1.50 HEX STDOFF

1921E
Keystone Electronics
1: $5.55
240In Stock

Mfr. Part No.
1921E

Mouser Part No
534-1921E

Keystone Electronics

Standoffs & Spacers 4-40 1.50 HEX STDOFF

Learn More

Datasheet

240In Stock

$5.55

$4.20

$3.96

$3.77

View

Min.: 1
Mult.: 1

Screws & Fasteners TURNABLE JACK SCREW

2064
Keystone Electronics
1: $3.39
21In Stock

Mfr. Part No.
2064

Mouser Part No
534-2064

Keystone Electronics

Screws & Fasteners TURNABLE JACK SCREW

Datasheet

21In Stock

$3.39

$2.62

$2.54

$2.50

View

Min.: 1
Mult.: 1

Screws & Fasteners JACK SCREW

2069
Keystone Electronics
1: $4.90
56In Stock

Mfr. Part No.
2069

Mouser Part No
534-2069

Keystone Electronics

Screws & Fasteners JACK SCREW

Datasheet

56In Stock

$4.90

$4.08

$4.07

$3.81

View

Min.: 1
Mult.: 1

Screws & Fasteners JK SCREW W/O SLOT

2072
Keystone Electronics
1: $5.05
70In Stock

Mfr. Part No.
2072

Mouser Part No
534-2072

Keystone Electronics

Screws & Fasteners JK SCREW W/O SLOT

Datasheet

70In Stock

$5.05

$3.56

$3.50

$3.11

$3.05

Min.: 1
Mult.: 1

Standoffs & Spacers SS 1.125 M/F THRD

2093
Keystone Electronics
1: $4.43
199In Stock

Mfr. Part No.
2093

Mouser Part No
534-2093

Keystone Electronics

Standoffs & Spacers SS 1.125 M/F THRD

Learn More

Datasheet

199In Stock

$4.43

$3.43

$2.86

$2.08

View

Min.: 1
Mult.: 1

Standoffs & Spacers SS 1.250 M/F THRD

2094
Keystone Electronics
1: $4.18
171In Stock

Mfr. Part No.
2094

Mouser Part No
534-2094

Keystone Electronics

Standoffs & Spacers SS 1.250 M/F THRD

Learn More

Datasheet

171In Stock

$4.18

$3.55

$3.41

$3.25

View

Min.: 1
Mult.: 1

Standoffs & Spacers SS 1.375 M/F THRD

2095
Keystone Electronics
1: $5.59
39In Stock

Mfr. Part No.
2095

Mouser Part No
534-2095

Keystone Electronics

Standoffs & Spacers SS 1.375 M/F THRD

Learn More

Datasheet

39In Stock

$5.59

$4.35

$3.97

$3.54

View

Min.: 1
Mult.: 1

Standoffs & Spacers SS 1.750 M/F THRD

2098
Keystone Electronics
1: $4.68
71In Stock

Mfr. Part No.
2098

Mouser Part No
534-2098

Keystone Electronics

Standoffs & Spacers SS 1.750 M/F THRD

Learn More

Datasheet

71In Stock

$4.68

$4.38

$3.73

$2.20

Min.: 1
Mult.: 1

4-40 Hardware

Types of Hardware

Customer Service Office

Company

Resources

Support