SEMS Screw: Split Lock, #4-40 Thread Size, 5/16 in Lg, Stainless Steel, Passivated
The SEMS Screw: Split Lock (MPN 1-PPL-4C-31) is a #4-40 thread size, 5/16 in long, stainless steel, passivated, pan-head machine screw with a split lock washer, supplied in a 25-pack. It features a #1 drive size…
SKU 3G-OTH-533951
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Product Description
The SEMS Screw: Split Lock (MPN 1-PPL-4C-31) is a #4-40 thread size, 5/16 in long, stainless steel, passivated, pan-head machine screw with a split lock washer, supplied in a 25-pack. It features a #1 drive size, combining fastener and washer into a single unit for streamlined assembly.
Frequently Asked Questions
What is a SEMS screw with split lock washer used for?
A SEMS screw with a split lock washer is used to fasten components while preventing loosening from vibration. The pre-assembled washer saves assembly time. Common in electronics, automotive, and machinery where a reliable, compact fastener is needed.
What are the specifications of the SEMS screw 1-PPL-4C-31?
The SEMS screw 1-PPL-4C-31 has a #4-40 thread size, 5/16 in length, stainless steel, passivated finish, pan head, and #1 drive size. It includes a split lock washer and comes in a 25-pack. These specs ensure corrosion resistance and secure fastening.
Where to buy SEMS screws in worldwide?
3G Electric supplies SEMS screws worldwide, handling logistics, customs, and delivery. As a global industrial solutions provider, we source genuine fasteners like the 1-PPL-4C-31. Contact us for availability and lead time to your location.
How to install a SEMS screw with split lock washer?
To install a SEMS screw, use a #1 drive tool (e.g., Phillips or slotted) to drive the screw into a pre-tapped hole or nut. The split lock washer compresses under the head, creating tension that resists loosening. Avoid over-torquing to prevent damage.
SEMS Products
3G Electric supplies SEMS machine screws with split lock washers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









