We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

SEMS Screw: External Tooth, #10-24 Thread Size, 1/2 in Lg, Steel, Zinc-Plated - Machine Screws with External Tooth Lock Washers
SEMSMachine Screws with External Tooth Lock Washers

SEMS Screw: External Tooth, #10-24 Thread Size, 1/2 in Lg, Steel, Zinc-Plated

The SEMS Screw: External Tooth is a #10-24 thread size, 1/2 in length machine screw with an external tooth lock washer, made of steel with a zinc-plated finish and a hex drive size of 5/16 in, supplied in a 100-piece…

SKU 3G-OTH-528632

Also listed as: HTCEIF1000500US100P · HTCEIF 1000500US 100P

Brand
SEMS
Item
Screw: External Tooth, #10-24 Thread Size, 1/2 in Lg, Steel, Zinc-Plated
Category
Machine Screws with External Tooth Lock Washers
Available to Order
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Technical specs
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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

Technical Specifications

SEMS
Manufacturer Part Number
HTCEIF-1000500US-100P
Type
#10-24 Thread Size, Steel, Zinc-Plated, Hex, 100 PK
Lg
1/2 in
Drive Size
5/16 in

Technical Documents

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SEMS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SEMS Screw: External Tooth is a #10-24 thread size, 1/2 in length machine screw with an external tooth lock washer, made of steel with a zinc-plated finish and a hex drive size of 5/16 in, supplied in a 100-piece pack (MPN HTCEIF-1000500US-100P).

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 external tooth screw used for?

A SEMS external tooth screw combines a machine screw with a pre-assembled lock washer to resist loosening from vibration. It is used in industrial assembly, electrical panels, and equipment where a secure, shake-proof fastening is required across metal or plastic components.

What are the specifications of the SEMS screw #10-24 x 1/2 in?

This SEMS screw has a #10-24 thread size, 1/2 in length, steel construction with zinc-plated finish, and a hex drive size of 5/16 in. It includes an external tooth lock washer and comes in a 100-piece pack (MPN HTCEIF-1000500US-100P).

Where to buy SEMS external tooth screws worldwide?

3G Electric supplies SEMS external tooth screws worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide genuine fasteners like this #10-24 x 1/2 in steel zinc-plated screw pack to customers across 14 industrial departments.

How to select the correct SEMS screw size for an application?

Select a SEMS screw by matching thread size (#10-24), length (1/2 in), and drive size (5/16 in) to your assembly's hole and torque requirements. The external tooth washer provides locking action; ensure the screw material (steel, zinc-plated) is compatible with the mating surface to prevent galvanic corrosion.

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.

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