Kerr Lakeside
Kerr Lakeside 1/4-28 x 3/8 in. Socket Head Cap Screw Black Oxide 100 Pieces
1/4-28 UNF alloy-steel socket head cap screws, 3/8 in. long, black oxide finish, 100 pieces
- Alloy steel construction delivers high tensile strength
- Black oxide finish resists corrosion in demanding environments
- Fine UNF threads provide precise adjustment control
- Hex socket drive enables secure installation with 3/16 in. key
- 100-piece pack supplies volume for production or maintenance
Inch socket head cap screws in black oxide
These Kerr Lakeside socket head cap screws use a 1/4-28 UNF fine thread and a 3/8 inch overall length. The drive is a 3/16 inch hex socket. Alloy steel construction with a black oxide finish provides corrosion resistance. A pack contains 100 pieces for production or maintenance stock.
Suited for fine-thread inch applications
Builders assembling components that require a 1/4-28 UNF thread and a short 3/8 inch grip length will find these screws appropriate. Not for applications needing a coarse thread, a metric thread or a longer grip length. The fully threaded shank and cylindrical head suit standard socket-head clearance holes.
The thread specification decides fit
The defining spec is the 1/4-28 UNF thread designation. If the tapped hole or nut calls for that exact diameter and pitch, these screws will engage correctly. A different thread series or pitch will not mate with the fastener.
Highlights
- Alloy steel construction delivers high tensile strength
- Black oxide finish resists corrosion in demanding environments
- Fine UNF threads provide precise adjustment control
- Hex socket drive enables secure installation with 3/16 in. key
- 100-piece pack supplies volume for production or maintenance
Specifications
| Brand | Prospect Fastener |
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Questions about this item
Should I choose the 1/4-28 x 3/8 inch size or a different thread pitch for my application?
This pack contains 100 pieces of 1/4-28 UNF fine-thread screws with a 3/8 inch length. Select this size only if your tapped holes match the 1/4 inch diameter and 28 threads per inch specification.
What does the 3/8 inch length mean once the screw is installed in a machine?
The 3/8 inch length measures from under the cylindrical head to the tip. Because the thread length is also 3/8 inch, the screw is fully threaded, so the entire shank engages the tapped hole when seated.
The drive is a 3/16 inch hex socket — what tool fits and what torque can it practically handle?
Use a 3/16 inch hex key or bit. The alloy steel construction with black oxide finish supports standard socket-head torque values for 1/4 inch diameter fasteners; apply lubricant if higher clamping force is needed.
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