Wireline Bottom Subs / Bull Nose Subs
Industry proven wireline bottom sub design, made more productive, safe, and durable
Yellow Jacket Oil Tools bottom subs for wireline and e-line applications, also referred to as bull nose subs or bull plugs, offer industry proven design with improvements that increase productivity, user safety, and tool durability.

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Wireline Bottom SubsMore Productive
The fluted gripping surface increases pipe wrench grip and torque for faster tool string assembly and disassembly.
Safer
With fluted gripping, wrenches are less likely to slip and injure users.

More Durable
Fluted gripping surface outlasts the industry-standard, knurled style gripping.

Premium, heat treated 4340 steel improves durability.

Sub Styles
Bull Plug
Tapped Bull Plug
PSA Bull Plug