5/16"-18 Socket Head Cap Screw, Flat, Black Oxide Alloy Steel, 2-1/2 in Length, 100 PK MPN:31C250KFC
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In Stock
Free Shipping
In Stock
SKU
510-G1348916
5/16"-18 Socket Head Cap Screw, Flat, Black Oxide Alloy Steel, 2-1/2 in Length, 100 PK
Elevate your projects with Kerr Lakeside's 5/16in-18 Socket Head Cap Screws, available in 100-packs. These precision-made screws feature a flat head, black oxide finish, and alloy steel construction for long-lasting durability. Ideal for applications where high torque is required, such as in aerospace, automotive, and industrial settings. The partially threaded design provides a secure hold in a variety of materials, including wood, metal, and plastic. With a countersink angle of 82 degrees, these screws are perfect for use in countersinking applications, ensuring a flush finish and reducing the risk of damage.
Top product features:
- Flat head design for countersinking
- Alloy steel construction for strength and durability
- Black oxide finish for corrosion resistance
Top product applications:
- Structural assembly
- Machine building
- Heavy machinery repair
Socket Flat Head Screw, Head Type Flat, System of Measurement Inch, Drive Type Socket, Drive Size 3/16 in, Material Alloy Steel, Finish Black Oxide, Thread Size 5/16 In.-18, Minimum Thread Length 1 1/8 in, Fastener Length 2 1/2 in, Head Height 0.198 in, Head Diameter 0.656 in, Pack Size Small Pack, Thread Style Partially Threaded, Special Features Not Applicable, Countersink Angle 82 Degrees , Dimensional Standards ASME B18.3, Flange Diameter Not Applicable, Flange Thickness Not Applicable
Additional Information
- Country of Origin: US
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: PK
- Package Length: 5.50
- Package Width: 7.00
- Package Height: 2.00
- Package Weight: 5.06
Product info last updated on February 18, 2026 10:15am UTC
Category: Screws and Bolts