SEMS 1/4"-20 x 1/2" Stainless Steel Passivated Pan Head Machine
The SEMS Screw: Internal Tooth (MPN 1-PPI-25C-50) is a stainless steel, passivated, pan-head machine screw with an internal tooth lock washer, featuring a 1/4"-20 thread size, 1/2 in length, and #3 drive size. 3G…
SKU 3G-OTH-532090
Also listed as: 1PPI25C50 · 1 PPI 25C 50
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The SEMS Screw: Internal Tooth (MPN 1-PPI-25C-50) is a stainless steel, passivated, pan-head machine screw with an internal tooth lock washer, featuring a 1/4"-20 thread size, 1/2 in length, and #3 drive size. 3G Electric sources this genuine OEM fastener across 14 industrial departments, with specialist expertise in combustion, pumps, and controls ensuring accurate specification and supply.
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 pre-assembled washer bites into the mating surface, making it ideal for industrial machinery, electrical enclosures, and panel assembly across 14 departments.
What are the specifications of the SEMS screw 1-PPI-25C-50?
The SEMS screw 1-PPI-25C-50 has a 1/4"-20 thread size, 1/2 in length, #3 drive size, and a stainless steel passivated pan head with an internal tooth lock washer. It is a genuine SEMS fastener suitable for demanding industrial environments.
Where to buy SEMS screws in worldwide?
3G Electric supplies SEMS screws worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine fasteners like the 1-PPI-25C-50 across 14 departments, with specialist expertise in combustion, pumps, and controls to ensure correct specification and delivery.
How to select the correct SEMS screw for an application?
To select the correct SEMS screw, match thread size (e.g., 1/4"-20), length (e.g., 1/2 in), drive size (e.g., #3), and material (e.g., stainless steel passivated) to your assembly requirements. The internal tooth lock washer provides vibration resistance; consult 3G Electric for specification support.
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.
