SEMS Screw: External Tooth, #4-40 Thread Size, 1/4 in Lg, Steel, Zinc-Plated
The SEMS Screw: External Tooth is a #4-40 thread size, 1/4 in length machine screw with an external tooth lock washer, made of steel with zinc plating and a pan, Phillips drive. Supplied in a 100-pack with a #1 drive…
SKU 3G-OTH-528625
- 6–10 business days door-to-door; Bea Cukai clearance typically 3–5 business days.
- Invoicing in IDR or USD. Bank transfer and corporate PO accepted.
- Dikirim ke: Jakarta, Surabaya, Bandung, Medan, Batam
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Deskripsi Produk
The SEMS Screw: External Tooth is a #4-40 thread size, 1/4 in length machine screw with an external tooth lock washer, made of steel with zinc plating and a pan, Phillips drive. Supplied in a 100-pack with a #1 drive size (MPN MPPEI0-400250-100P), this product is part of 3G Electric's curated industrial offering across 14 departments, with specialist depth in fasteners and controls.
Supplied to Indonesia — compatible with 50 Hz installations. DHL Express delivery to Jakarta, Surabaya, Bandung, customs and duties handled door-to-door.
Pertanyaan yang Sering Diajukan
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 while resisting loosening from vibration. The pre-assembled washer bites into the mating surface, making it ideal for industrial assembly, machinery, and electrical enclosures where a secure, permanent fastening is required.
What are the specifications of the SEMS screw #4-40 x 1/4 in?
This SEMS screw has a #4-40 thread size, 1/4 in length, steel construction with zinc plating, a pan head, and Phillips drive with #1 drive size. It includes an external tooth lock washer and comes in a 100-pack (MPN MPPEI0-400250-100P).
Where to buy SEMS screws #4-40 x 1/4 in worldwide?
3G Electric supplies SEMS screws #4-40 x 1/4 in worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine fasteners like this SEMS screw from SEMS and deliver to any international destination. Contact us for availability and lead time.
How to select the correct SEMS screw for an application?
Select a SEMS screw by matching thread size, length, and drive type to your assembly requirements. For vibration-prone environments, the external tooth lock washer provides added grip. Ensure the material (e.g., steel zinc-plated) is compatible with the mating surface to prevent galvanic corrosion.
SEMS Produk
3G Electric memasok SEMS machine screws with external tooth lock washers. Kami menyediakan produk asli dengan ketersediaan tersedia di gudang untuk SKU umum, dokumentasi teknis, dukungan commissioning, dan layanan garansi — di seluruh dunia.









