SEMS Screw: Internal Tooth, #4-40 Thread Size, 3/8 in Lg, Stainless Steel, Passivated
The SEMS Screw: Internal Tooth (#4-40 Thread Size, 3/8 in Lg, Stainless Steel, Passivated, Pan, 50 PK, MPN 1-PPI-4C-37) is a machine screw with an integrated internal tooth lock washer, featuring a #1 drive size…
SKU 3G-OTH-532113
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Product Description
The SEMS Screw: Internal Tooth (#4-40 Thread Size, 3/8 in Lg, Stainless Steel, Passivated, Pan, 50 PK, MPN 1-PPI-4C-37) is a machine screw with an integrated internal tooth lock washer, featuring a #1 drive size. This OEM part is supplied by 3G Electric, which interprets customer demand and delivers genuine industrial equipment across 14 departments — and far more — with specialist depth in combustion, pumps and controls as an authorised distributor.
Frequently Asked Questions
What is a SEMS screw with internal tooth lock washer used for?
A SEMS screw with an internal tooth lock washer is used to fasten components while resisting loosening from vibration. The integrated washer bites into the mating surface, making it ideal for industrial assemblies in machinery, electrical panels, and instrumentation where a secure, permanent hold is required.
What are the specifications of the SEMS screw #4-40 thread size?
This SEMS screw has a #4-40 thread size, 3/8 in length, stainless steel construction with passivated finish, pan head, and a #1 drive size. It includes an integrated internal tooth lock washer and comes in a 50-piece pack. The manufacturer part number is 1-PPI-4C-37.
Where to buy SEMS screws in worldwide?
3G Electric supplies SEMS screws worldwide, handling full logistics and customs clearance for global delivery. As a sourcing specialist across 14 industrial departments, we provide genuine OEM parts like this SEMS screw with internal tooth lock washer. Contact us for availability and lead time to your location.
How to install a SEMS screw with internal tooth lock washer?
Install a SEMS screw by driving it into a pre-tapped hole or with a nut using a #1 drive tool. The integrated internal tooth washer embeds into the surface as you tighten, preventing loosening. Avoid over-torquing to prevent damage to the stainless steel threads. Use standard torque values for #4-40 fasteners.
SEMS Products
3G Electric supplies SEMS machine screws with internal tooth lock washers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
