SO-239, UHF female 4-Hole Panel Mount Solder Connector for RG-8, RG-11, RG-83, RG-213, RG-393, LMR-400, & other 0.405 Inch OD Coax


Quantity Discounts Available:
(Single Piece) Price: $3.00 each
(10 Pack) Price: $27.00 per pack Save 10%
(25 Pack) Price: $60.00 per pack Save 20%
(50 Pack) Price: $120.00 per pack Save 20%
(100 Pack) Price: $210.00 per pack Save 30%

Pack Quantity: These are sold in “pack” quantities. Choose the pack size you would like. The per unit price is based on this pack size.

SO-239, UHF female 4-Hole Panel Mount Solder Connector

Silver Plated Brass Body
Gold Plated Brass Center Pin
PTFE Dielectric

Detailed Product Information

This SO-239 or UHF female 4-Hole Panel Mount Solder Connector is one of several thousand RF products available from Max-Gain Systems, Inc.

This connector is made from a precision cast zinc body that is heavily plated with Silver for superior performance and value. Being cast the SO-239 can be produced in a way that there is no lip between the UHF female and the flange mount which makes installation easy. This SO-239 or UHF female 4-Hole Panel Mount Solder Connector has a PTFE dielectric and a gold plated brass center pin. The UHF female interface has 16 individually machined “V’s”. This is to ensure a perfect seat of any UHF male (PL-259), to this connector, every time.


Compatible with Coaxial Cable Types with a center conductor of 0.120 or less including but not limited to: RG-8, RG-11, RG-83, RG-213, RG-214, RG-393, LMR-400, Belden 8237, Belden 8267, Belden 8268, Belden 9011, Belden 9913, RG-8X, RG-59, RG-6, RG-62, RG-223, LMR-240, Belden 7916A, Belden 8241, Belden 9258, RG-58, RG-58A/U, RG-142, RG-400, LMR-195, LMR-200, Belden 9201, Belden 8219, Belden 8259, Belden 7807, RG-174, RG-178, RG-188, RG-196, LMR-100A, LMR-100, LMR-110, and Belden 8216 coaxial cable.


SO-239 UHF female 4 Hole Panel Mount for LMR-400, RG-213, RG-8 7511-UHF Installation and Mounting Guide - Max-Gain Systems Inc

Drilling a 5/8 inch (0.625”) hole for the solder cup to fit through, and allow for distance between the chassis and that solder cup, then four (0.138 inch holes that are 0.708 inches apart, equidistant from the center hole. Using four screws that are 0.125 inch diameter will attach the SO-239 to your chassis or panel.

RF Connectors

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RF Adapters

RF Adapters 300x300 - Max-Gain Systems Inc

About Max-Gain Systems, Inc.

Max-Gain Systems, Inc. carries a full line of in-series, between series, right angle, T-shaped, quick connect, handie-talkie (BLACK), pigtails (coaxial jumpers), etc… RF adapters. Our RF adapter lines are constantly expanding. We keep our RF connector and adapter lines in stock. We ship both retail and wholesale quantities. To become a dealer / wholesale user, contact us with your potential usage.

Max-Gain Systems, Inc. is the number one supplier of fiberglass round hollow tube, square tube and round solid rod to the antenna manufacturing industry. We produce millions of feet a year for hundreds of different industries including but not limited to: marine / boating, aeronautical, agriculture, construction, emergency services, etc…. We have the unique ability to sell one piece or even a semi-truck full. Feel free to prototype using our fiberglass tube and rod then contact us for a quote on a production run. At production run quantities we can cut to your desired lengths at no additional charge, and we can also perform several different fabrications (example: drilling holes in precise locations along a tube) to ensure your delivered material is ready for assembly. We have several accessory items designed for our fiberglass including but not limited to: couplers, telescoping clamps, ferrules, etc…

Additional information

Shipping Weight N/A
Shipping Dimensions N/A
Pack Quantity

Single Piece, 10 Pack, 25 Pack, 50 Pack, 100 Pack

Connection Type


Termination Type


Coax Type

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Mount Method

4 Hole Flange

Attachment Method

Connector Attribute

Body Style


50 OHM

Body Material


Dielectric Insulator Material


Pin Material


Material Designation



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