.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 (GBP) 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 JACK SCREW WITH NYL PATCH STAINLESS
Datasheet
9,063In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew Nylon, Steel
Keystone Electronics Screws & Fasteners Jack Screw .187 Yellow 4-40
Datasheet
340In Stock
220Expected 24/08/2026
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 Steel Zinc, Yellow Chromate Hex
Keystone Electronics Screws & Fasteners JCK POST .25"
Datasheet
22,099In Stock
55,600Expected 28/07/2026
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.25 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW
Datasheet
38,373In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.25 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JK SCREW .25" W/HDWR
Datasheet
6,116In Stock
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.25 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW .312
Datasheet
17,348In Stock
25,000Expected 28/07/2026
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.312 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW .312
Datasheet
54,874In 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
19,458In Stock
16,200On Order
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.312 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW W/HWD.625
Datasheet
6,206In Stock
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.625 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners SEMS JACK SCREW
Datasheet
49,198In Stock
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 0.285 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners .347 JACK SCREW
Datasheet
16,673In Stock
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 0.347 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW
Datasheet
6,874In Stock
3,800On Order
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 4.75 mm Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW KIT
Datasheet
7,866In Stock
Min.: 1
Mult.: 1

Kits Jackscrew 4-40 12.7 mm Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW STNLESS STEEL .312
Datasheet
8,456In Stock
10,000Expected 24/08/2026
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 12.7 mm Stainless Steel Hex
Keystone Electronics Screws & Fasteners JACK SCREW KIT STAINLESS
Datasheet
2,837In Stock
Min.: 1
Mult.: 1

Kits Jackscrew Steel
Keystone Electronics Screws & Fasteners Hex Jack Screw 0.625 w/hdwr SS 4-40
Datasheet
2,252In Stock
2,100Expected 27/07/2026
Min.: 1
Mult.: 1

Jack Screw Kit Hex Jack Screw 4-40 15.8 mm Stainless Steel Hex
Keystone Electronics Screws & Fasteners JACK SCREW WITH NYL PATCH STAINLESS
Datasheet
12,116In Stock
19,500Expected 23/07/2026
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
12,891In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 11.2 mm Stainless Steel Hex
Keystone Electronics Screws & Fasteners JACK SCREW WITH NYL PATCH STEEL
Datasheet
12,052In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 13 mm Nylon, Steel Zinc
Keystone Electronics Screws & Fasteners JACK SCREW W/HWD.312
Datasheet
23,253In Stock
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.312 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW .625
Datasheet
4,733In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.625 in Steel Zinc Hex
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 SCR .250" W/HRDWR
Datasheet
1,808In Stock
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.25 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW W/HWD.625
Datasheet
573In Stock
1,350Expected 28/07/2026
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.625 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW KIT 4-40
Datasheet
2,335In Stock
Min.: 1
Mult.: 1

Kits Jackscrew 4-40 0.285 in Steel Zinc Hex