SEMS Screw: External Tooth, #4-40 Thread Size, 1/4 in Lg, Stainless Steel, Passivated
The SEMS Screw: External Tooth is a #4-40 thread size, 1/4 in long, stainless steel, passivated, pan-head machine screw with an external tooth lock washer, supplied in a 50-piece pack (MPN 1-PPE-4C-25). It features a…
SKU 3G-OTH-528639
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Product Description
The SEMS Screw: External Tooth is a #4-40 thread size, 1/4 in long, stainless steel, passivated, pan-head machine screw with an external tooth lock washer, supplied in a 50-piece pack (MPN 1-PPE-4C-25). It features a #1 drive size. 3G Electric sources this genuine SEMS fastener as part of our industrial supply across 14 departments, with specialist expertise in combustion, pumps and controls.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is a SEMS screw with external tooth lock washer used for?
A SEMS screw with an external tooth lock washer is used to fasten components in machinery, electrical panels, and industrial equipment where vibration resistance is needed. The pre-assembled washer prevents loosening. 3G Electric supplies this genuine SEMS fastener across 14 industrial departments.
What are the specifications of the SEMS screw #4-40 1/4 in?
This SEMS screw has a #4-40 thread size, 1/4 in length, stainless steel construction with passivated finish, pan head, and a #1 drive size. It includes an external tooth lock washer and comes in a 50-piece pack (MPN 1-PPE-4C-25). 3G Electric sources this genuine SEMS fastener.
Where to buy SEMS screws #4-40 worldwide?
3G Electric supplies genuine SEMS screws #4-40 with external tooth lock washers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this 50-piece pack (MPN 1-PPE-4C-25).
How to install a SEMS screw with external tooth lock washer?
Install a SEMS screw by driving it into a tapped hole or through a clearance hole with a nut using a #1 drive tool. The pre-assembled external tooth washer embeds into the mating surface to resist loosening. Tighten to the torque recommended for #4-40 stainless steel fasteners.
SEMS Products
3G Electric supplies SEMS machine screws with external tooth lock washers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
