Undersized Machine Key, Square End, Steel, Plain, 4 in L, 5/16 in Sq MPN:3003120312-4000
Undersized Machine Key, Square End, Steel, Plain, 4 in L, 5/16 in Sq
This undersized machine key is designed for precise applications, featuring a square end and plain finish for secure engagement. Made from durable steel, it measures 4 inches in length and 5/16 inches in square size, making it ideal for use in Form B applications. Its compact size and lightweight design allow for easy installation and reduced material waste. This machine key is suitable for use in a variety of industries, including manufacturing, automotive, and aerospace, where precise alignment and secure fastening are critical. Its durability and reliability make it a valuable component in high-performance machinery and equipment.
Top product features:
- Square end shape for secure fit in machine applications
- Plain finish for minimal wear and tear on mating parts
- 4 inch length for use in a variety of machine configurations
Top product applications:
- Engineered Machine Components
- Gearbox or Motor Mounts
- Shaft Couplings
Machine Key,5/16x5/16x4",Form B,Steel
Additional Information
- Country of Origin: US
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 5 days
- Minimum Order Quantity: 30
- Unit of Measure: EA
- Package Length: 4.00
- Package Width: 0.31
- Package Height: 0.31
- Package Weight: 0.11
Product info last updated on February 3, 2026 11:42am UTC
Category: Key Stock