SEMS Screw: Flat/Split Lock, #4-40 Thread Size, 3/8 in Lg, Stainless Steel, Passivated
The SEMS Screw: Flat/Split Lock is a #4-40 thread size, 3/8 in length, stainless steel, passivated, pan head machine screw with a #1 drive size, supplied in a 10-pack (MPN 1-PPX-4C-37). This pre-assembled fastener…
SKU 3G-OTH-525200
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Product Description
The SEMS Screw: Flat/Split Lock is a #4-40 thread size, 3/8 in length, stainless steel, passivated, pan head machine screw with a #1 drive size, supplied in a 10-pack (MPN 1-PPX-4C-37). This pre-assembled fastener combines a flat and split lock washer for efficient installation.
Frequently Asked Questions
What is a SEMS screw with flat and split lock washer used for?
A SEMS screw with a flat and split lock washer is used to fasten components in machinery, electrical panels, and industrial assemblies. The pre-assembled washer prevents loosening from vibration and distributes load evenly, making it ideal for applications requiring reliable, corrosion-resistant fastening.
What are the specifications of the SEMS screw #4-40 x 3/8 in?
This SEMS screw has a #4-40 thread size, 3/8 in length, stainless steel construction with passivated finish, and a pan head with #1 drive size. It includes a flat and split lock washer pre-assembled, supplied in a 10-pack (MPN 1-PPX-4C-37).
Where to buy SEMS screws #4-40 worldwide?
3G Electric supplies SEMS screws #4-40 x 3/8 in (MPN 1-PPX-4C-37) to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver these fasteners to your facility, ensuring compliance with local import requirements.
How to install a SEMS screw with flat and split lock washer?
Install the SEMS screw by driving it into a pre-tapped hole or with a nut using a #1 drive tool. The pre-assembled flat and split lock washer eliminates separate handling. Tighten to the recommended torque for stainless steel fasteners to avoid galling, ensuring a secure, vibration-resistant joint.
SEMS Products
3G Electric supplies SEMS machine screws with flat & split lock washers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









