D-Sub, D-Shaped Connectors - Accessories - Jackscrews
D-Sub, D-Shaped Connectors Accessories Jackscrews
Definition & Purpose
Jackscrews are essential hardware accessories designed for D-Sub (D-Shaped) connectors, a widely used interconnect solution in electronics and industrial applications. These small yet critical components ensure secure mating and strain relief between connector pairs, preventing accidental disconnections due to vibration or mechanical stress. Typically made from durable metals like steel or brass (often with plating for corrosion resistance), jackscrews enhance the stability and longevity of D-Sub connections.
Types & Variations
Jackscrews for D-Sub connectors come in multiple configurations to match industry standards:
- Thread Size & Pitch: Common options include 4-40, M3, or M2.5 threads.
- Head Styles: Hexagonal, knurled, or slotted heads for tool-driven or manual tightening.
- Material Finishes: Zinc-plated, nickel-plated, or stainless steel for environmental resilience.
- Gender Compatibility: Male (external thread) or female (internal thread) variants to suit connector housings.
Selection Guide
When sourcing jackscrews for D-Sub applications, consider:
1. Thread Compatibility: Verify the screw thread matches the connector s threaded inserts (e.g., 4-40 for standard DB connectors).
2. Length & Engagement: Ensure adequate screw length to fully secure the mated connectors without over-torquing.
3. Environmental Needs: Opt for corrosion-resistant plating (e.g., nickel) in humid or harsh conditions.
4. Tooling Requirements: Hex-head screws may require wrenches, while knurled heads allow hand-tightening.
Why It Matters
Jackscrews may seem minor, but they play a vital role in maintaining signal integrity and mechanical stability in data communication, industrial controls, and aerospace systems. Investing in high-quality jackscrews minimizes downtime and ensures reliable performance in critical interconnect setups.
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289-015-C
CONNECTOR
687-316ML
PROTECTIVE COVER
687-348Z2-20-12
PROTECTIVE COVER
09670029017
INDUCOM KNURLED SCREW, M3,FOR D-
D20420-162
DSUB MALE SCREW LOCK X2
JSX-M3131
JACK SCREW M3 METRIC THREAD ROHS
687-394-1
PROTECTIVE COVER
09670019977
D SUB MALE SCREW LOCK M3 NUT FUL
CWN-HK-11
HARDWARE MOUNTING KIT 4-40
687-188
PROTECTIVE COVER
09670029090
D SUB SHORT MOUNTING SCREW FOR F
687-218N024
PROTECTIVE COVER
1731120418
FCT SCREW SET M3/M3 15.0 TIN PLA
687-422M182
PROTECTIVE COVER
687-178S
PROTECTIVE COVER
687-417-02
PROTECTIVE COVER
1-829261-4
CONN D-SUB HD FEMALE SCREW LOCK
3342-20
3342-20 MDR/M2.6/TSCREW/SOLDER P
C020419-0048C
340102203B NMB
D20419-21
JACK SCREW MALE W/ CLIP 4-40