.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 (USD) 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
8,563In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew Nylon, Steel
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
20,349In Stock
55,500Expected 8/13/2026
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.25 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW
Datasheet
37,908In Stock
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.25 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW .312
Datasheet
14,938In Stock
25,000Expected 8/3/2026
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 0.312 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW .312
Datasheet
49,969In Stock
50,000Expected 9/21/2026
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
16,221In Stock
16,200Expected 8/14/2026
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
6,101In Stock
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.625 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners SEMS JACK SCREW
Datasheet
35,098In Stock
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 0.285 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners .347 JACK SCREW
Datasheet
16,667In 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
3,800Expected 8/14/2026
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 4.75 mm Steel Zinc Hex
Keystone Electronics Screws & Fasteners JACK SCREW STNLESS STEEL .312
Datasheet
5,919In Stock
10,000Expected 8/24/2026
Min.: 1
Mult.: 1

Screws Hex Jackscrew 4-40 12.7 mm Stainless Steel Hex
Keystone Electronics Screws & Fasteners JACK SCREW KIT STAINLESS
Datasheet
2,801In Stock
Min.: 1
Mult.: 1

Kits Jackscrew Steel
Keystone Electronics Screws & Fasteners Hex Jack Screw 0.625 w/hdwr SS 4-40
Datasheet
2,076In Stock
2,100Expected 8/14/2026
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
11,168In Stock
19,500Expected 9/14/2026
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
12,285In 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
22,629In 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
708In Stock
5,000Expected 8/24/2026
Min.: 1
Mult.: 1

Kits Hex Jackscrew 4-40 0.25 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners JK SCREW .25" W/HDWR
Datasheet
5,582In 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
338In Stock
1,350Expected 8/11/2026
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
2,035In Stock
Min.: 1
Mult.: 1

Kits Jackscrew 4-40 0.285 in Steel Zinc Hex
Keystone Electronics Screws & Fasteners SEMS JACK SCREW
Datasheet
188In Stock
Min.: 1
Mult.: 1

Screws Jackscrew 4-40 0.66 in Steel Zinc Hex