SEMS #4-40 x 1/4 in Stainless Steel Pan Head Machine Screw with
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
Also listed as: 1PPE4C25 · 1 PPE 4C 25
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
Need installation or engineering help?
Ask a question
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.
