Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
KERR LAKESIDE Socket Flat Head Screw: 5/16"-18 Thread Size, 2 1/2 in Lg, Flat, Black Oxide - Flat Head Socket Cap Screws
KERR LAKESIDEFlat Head Socket Cap Screws

KERR LAKESIDE Socket Flat Head Screw: 5/16"-18 Thread Size, 2 1/2 in Lg, Flat, Black Oxide

The KERR LAKESIDE Socket Flat Head Screw (SKU 5MJV9, MPN 31C250KFC) is a 5/16"-18 thread size, 2 1/2 in long flat head socket cap screw. It features a black oxide finish, is made of alloy steel, and comes in a…

SKU 3G-OTH-678633

Brand
KERR LAKESIDE
Item
Socket Flat Head Screw: 5/16"-18 Thread Size, 2 1/2 in Lg, Flat, Black Oxide
Category
Flat Head Socket Cap Screws
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

KERR LAKESIDE
Manufacturer Part Number
31C250KFC
Type
Flat, Black Oxide, Alloy Steel, 100 PK
Lg
2 1/2 in
Drive Size
3/16 in
Thread Direction
Right Hand
System of Measurement
Inch
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

KERR LAKESIDE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KERR LAKESIDE Socket Flat Head Screw (SKU 5MJV9, MPN 31C250KFC) is a 5/16"-18 thread size, 2 1/2 in long flat head socket cap screw. It features a black oxide finish, is made of alloy steel, and comes in a 100-pack. This inch-system fastener has a right-hand thread direction and a 3/16 in drive size.

Frequently Asked Questions

What is a KERR LAKESIDE Socket Flat Head Screw used for?

This 5/16"-18 flat head socket cap screw is used for fastening applications requiring a flush mount in metal assemblies. Common in machinery, automotive, and industrial equipment where a low-profile, high-strength alloy steel fastener with a black oxide finish is needed.

What are the specifications of the KERR LAKESIDE 31C250KFC socket screw?

The KERR LAKESIDE 31C250KFC is a 5/16"-18 thread size, 2 1/2 in long flat head socket cap screw. It has a right-hand thread, 3/16 in drive size, black oxide finish, and is made of alloy steel. Sold in a 100-pack, inch system.

Where to buy KERR LAKESIDE socket flat head screws in worldwide?

3G Electric supplies KERR LAKESIDE socket flat head screws worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 31C250KFC 100-pack or other sizes.

How to install a KERR LAKESIDE flat head socket cap screw?

Use a 3/16 in hex key to drive the screw. Ensure the countersunk hole matches the 82° flat head angle. Apply appropriate torque for alloy steel fasteners. Pre-drill and tap to 5/16"-18 thread for proper engagement. Avoid over-tightening to prevent head damage.

KERR LAKESIDE Products

3G Electric supplies KERR LAKESIDE flat head socket cap screws. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from KERR LAKESIDE

View all KERR LAKESIDE parts →
Socket Flat Head Screw: #5-40 Thread Size, 1/4 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 5C25KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 5/64 in.
KERR LAKESIDE
Socket Flat Head Screw: #5-40 Thread Size, 1/4 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 5C25KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 5/64 in.
Socket Flat Head Screw: 5/16"-18 Thread Size, 1 1/2 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 31C150KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 3/16 in.
KERR LAKESIDE
Socket Flat Head Screw: 5/16"-18 Thread Size, 1 1/2 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 31C150KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 3/16 in.
Socket Flat Head Screw: 3/4"-10 Thread Size, 3 in Lg, Flat, Black Oxide, Alloy Steel, 25 PK (MPN 75C300KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 1/2 in.
KERR LAKESIDE
Socket Flat Head Screw: 3/4"-10 Thread Size, 3 in Lg, Flat, Black Oxide, Alloy Steel, 25 PK (MPN 75C300KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 1/2 in.
Socket Flat Head Screw: 1/4"-20 Thread Size, 1 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 25C100KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 5/32 in.
KERR LAKESIDE
Socket Flat Head Screw: 1/4"-20 Thread Size, 1 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 25C100KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 5/32 in.
Socket Flat Head Screw: #8-32 Thread Size, 1/2 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 8C50KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 3/32 in.
KERR LAKESIDE
Socket Flat Head Screw: #8-32 Thread Size, 1/2 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 8C50KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 3/32 in.
Socket Flat Head Screw: 5/8"-11 Thread Size, 2 1/4 in Lg, Flat, Black Oxide, Alloy Steel, 25 PK (MPN 62C225KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 3/8 in.
KERR LAKESIDE
Socket Flat Head Screw: 5/8"-11 Thread Size, 2 1/4 in Lg, Flat, Black Oxide, Alloy Steel, 25 PK (MPN 62C225KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 3/8 in.
Socket Flat Head Screw: 3/8"-16 Thread Size, 1 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 37C100KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 7/32 in.
KERR LAKESIDE
Socket Flat Head Screw: 3/8"-16 Thread Size, 1 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 37C100KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 7/32 in.
Socket Flat Head Screw: #10-24 Thread Size, 1/2 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 10C50KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 1/8 in.
KERR LAKESIDE
Socket Flat Head Screw: #10-24 Thread Size, 1/2 in Lg, Flat, Black Oxide, Alloy Steel, 100 PK (MPN 10C50KFC). Key specifications — System of Measurement: Inch; Thread Direction: Right Hand; Drive Size: 1/8 in.