1
/
of
1
Techline
WILLIAMS - Black Penta Socket. 3/8" D: 3/8 in Drive Size, 51/64 in Socket Size, Not Tether Capable
WILLIAMS - Black Penta Socket. 3/8" D: 3/8 in Drive Size, 51/64 in Socket Size, Not Tether Capable
Price
Sign in to see pricing
Share
Quantity
Couldn't load pickup availability
Fast Shipping
Secure Checkout
Williams BB-526 Black Penta Socket — 3/8" Drive, 51/64"
The Williams BB-526 is a USA-manufactured black penta socket engineered for reliable performance on five-point penta-head fasteners in utility, industrial, and maintenance applications. Built to industrial standards for long-term durability in demanding field conditions.
Key Features
- Five-point penta design for secure engagement on penta-head fasteners
- 3/8" drive compatible with standard 3/8" drive ratchets and extensions
- 51/64" socket size for precise fit on penta fasteners
- Black finish for corrosion resistance and reduced glare in field conditions
- Made in USA to industrial standards
Specifications
- Part Number: BB-526
- Drive Size: 3/8"
- Socket Size: 51/64"
- Socket Type: Penta (5-point)
- Finish: Black
- Tether Capable: No
- Origin: Made in USA
Ideal Applications
- Utility and lineman field work on penta-head fasteners
- Electrical utility infrastructure maintenance
- Industrial equipment maintenance
- Any application requiring a 3/8" drive penta socket
Part Number: BB-526 | Vendor: Williams

Since 1987, Techline Tools has provided a complete line of professional quality lineman tools and safety equipment to keep your crews productive and protected.
© 2026 Techline Tools
| Privacy Policy
San Antonio Location
4314 Dividend Dr.
San Antonio, TX 78219
(800) 747-3747
- Choosing a selection results in a full page refresh.
- Opens in a new window.