.187 Jack Screws

Keystone Electronics .187 Jack Screws are 4.8mm diameter (.187") screws designed for D-subminiature connectors used in computer cables and other electronic equipment. The product portfolio includes standard jack screws, a sems version with a captivated helical spring-lock washer that simplifies use, a slotted option for installation with a screwdriver, and a screw with a nylon patch that firmly holds the jack in vibration applications. Keystone Electronics .187 Jack Screws feature a 3/16 hex head and 4-40 thread and are offered in stainless steel or with zinc chromate plating in yellow or clear.

Results: 64
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Description Datasheet Availability Pricing (NOK) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Type
Thread Size
Length
Material
Plating
Screw Head
Keystone Electronics Screws & Fasteners JK SCR .250" W/HRDWR
Datasheet
7 580In Stock
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.25 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW KIT SLOTTED
Datasheet
1 221In Stock
Min.: 1
Mult.: 1

Kits Slotted Jackscrew 4-40 12.7 mm
Keystone Electronics Screws & Fasteners Jack Screw .187 Yellow 4-40
Datasheet
560In Stock
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 Steel Zinc, Yellow Chromate Hex
Keystone Electronics Screws & Fasteners JCK POST .25"
Datasheet
30 408In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.25 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW
Datasheet
25 322In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.25 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW .312
Datasheet
31 690In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.312 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW .312
Datasheet
66 150In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.312 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW W/HWD.312
Datasheet
16 122In Stock
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.312 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW .625
Datasheet
6 774In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.625 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners SEMS JACK SCREW
Datasheet
33 325In Stock
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 0.285 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners .347 JACK SCREW
Datasheet
13 159In Stock
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 0.347 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners .250 Jack Screw Stainless
Datasheet
6 500In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 4.75 mm Stainless Steel Hex
Keystone Electronics Screws & Fasteners JACK SCREW STNLESS STEEL .312
Datasheet
16 295In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 4.75 mm Stainless Steel Hex
Keystone Electronics Screws & Fasteners JACK SCREW KIT STAINLESS
Datasheet
1 702In Stock
Min.: 1
Mult.: 1

Kits Jackscrew 4-40 12.7 mm Stainless Steel Hex
Keystone Electronics Screws & Fasteners JACK SCREW WITH NYL PATCH STAINLESS
Datasheet
15 775In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 6.4 mm Nylon, Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW WITH NYL PATCH STAINLESS
Datasheet
17 521In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 4.75 mm Stainless Steel Hex
Keystone Electronics Screws & Fasteners JACK SCREW WITH NYL PATCH STAINLESS
Datasheet
6 441In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew Nylon, Steel
Keystone Electronics Screws & Fasteners JACK SCREW W/HWD.312
Datasheet
35 019In Stock
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.312 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW WITH NYL PATCH STEEL
Datasheet
10 708In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 13 mm Nylon, Steel Zinc
Keystone Electronics Screws & Fasteners Jack Screw .187 w/hdwr Steel 4-40
Datasheet
174In Stock
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 Zinc, Yellow Chromate Hex
Keystone Electronics Screws & Fasteners JK SCREW .25" W/HDWR
Datasheet
4 044In Stock
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.25 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW .625
Datasheet
1 057In Stock
550Expected 3/2/2026
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.625 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW W/HWD.625
Datasheet
2 962In Stock
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.625 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners .347 SEMS Jack w/hardware
Datasheet
780In Stock
Min.: 1
Mult.: 1

Kits Jackscrew 4-40 8.8 mm Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW
Datasheet
2 660In Stock
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 4.75 mm Steel Zinc Hex