Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SEMS Screw: External Tooth, #10-32 Thread Size, 3/8 in Lg, Steel, Zinc-Plated - Machine Screws with External Tooth Lock Washers
SEMSMachine Screws with External Tooth Lock Washers

SEMS Screw: External Tooth, #10-32 Thread Size, 3/8 in Lg, Steel, Zinc-Plated

The SEMS Screw: External Tooth is a #10-32 thread size, 3/8 in length machine screw with an external tooth lock washer, made of steel with zinc-plated finish and a hex drive size of 5/16 in, supplied in a 100-piece…

SKU 3G-OTH-528633

Brand
SEMS
Item
Screw: External Tooth, #10-32 Thread Size, 3/8 in Lg, Steel, Zinc-Plated
Category
Machine Screws with External Tooth Lock Washers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

SEMS
Manufacturer Part Number
HTCEFIF-1000370US-100P
Type
#10-32 Thread Size, Steel, Zinc-Plated, Hex, 100 PK
Lg
3/8 in
Drive Size
5/16 in
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SEMS Screw: External Tooth is a #10-32 thread size, 3/8 in length machine screw with an external tooth lock washer, made of steel with zinc-plated finish and a hex drive size of 5/16 in, supplied in a 100-piece pack (MPN HTCEFIF-1000370US-100P).

Frequently Asked Questions

What is a SEMS external tooth screw 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 assemblies in machinery, electrical panels, and automotive applications where a secure, permanent joint is required.

What are the specifications of the SEMS #10-32 screw?

This SEMS screw has a #10-32 thread size, 3/8 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 HTCEFIF-1000370US-100P). The zinc plating provides corrosion resistance for general industrial use.

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 solutions provider, we source genuine fasteners like this #10-32, 3/8 in pack (MPN HTCEFIF-1000370US-100P) and deliver to your facility. Contact us for pricing and lead time on your order.

How to install a SEMS screw with external tooth lock washer?

Install a SEMS screw by driving it with a 5/16 in hex socket or driver until the external tooth washer contacts the mating surface. Tighten to the recommended torque for #10-32 steel fasteners—typically 20-30 in-lb—to allow the washer teeth to embed and prevent loosening. Avoid over-torquing to prevent thread stripping.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from SEMS

View all SEMS parts
SEMS Screw: External Tooth, M3x0.50 Thread Size, 20 mm Lg, Stainless Steel, Passivated, Pan, 25 PK (MPN 1-MPE-3-20). Key specifications — Drive Size: #1.
SEMS
SEMS Screw: External Tooth, M3x0.50 Thread Size, 20 mm Lg, Stainless Steel, Passivated, Pan, 25 PK (MPN 1-MPE-3-20). Key specifications — Drive Size: #1.
SEMS Screw: External Tooth, M4x0.70 Thread Size, 8 mm Lg, Stainless Steel, Passivated, Pan, 10 PK (MPN 1-MPE-4-8). Key specifications — Drive Size: #2.
SEMS
SEMS Screw: External Tooth, M4x0.70 Thread Size, 8 mm Lg, Stainless Steel, Passivated, Pan, 10 PK (MPN 1-MPE-4-8). Key specifications — Drive Size: #2.
SEMS Screw: External Tooth, #10-24 Thread Size, 1/2 in Lg, Steel, Zinc-Plated, Hex, 100 PK (MPN HTCEIF-1000500US-100P). Key specifications — Drive Size: 5/16 in.
SEMS
SEMS Screw: External Tooth, #10-24 Thread Size, 1/2 in Lg, Steel, Zinc-Plated, Hex, 100 PK (MPN HTCEIF-1000500US-100P). Key specifications — Drive Size: 5/16 in.
SEMS Screw: External Tooth, M2.5x0.45 Thread Size, 4 mm Lg, Stainless Steel, Passivated, Pan, 25 PK (MPN 1-MPE-2.5-4). Key specifications — Drive Size: #1.
SEMS
SEMS Screw: External Tooth, M2.5x0.45 Thread Size, 4 mm Lg, Stainless Steel, Passivated, Pan, 25 PK (MPN 1-MPE-2.5-4). Key specifications — Drive Size: #1.
SEMS Screw: External Tooth, M2.5x0.45 Thread Size, 8 mm Lg, Stainless Steel, Passivated, Pan, 25 PK (MPN 1-MPE-2.5-8). Key specifications — Drive Size: #1.
SEMS
SEMS Screw: External Tooth, M2.5x0.45 Thread Size, 8 mm Lg, Stainless Steel, Passivated, Pan, 25 PK (MPN 1-MPE-2.5-8). Key specifications — Drive Size: #1.
SEMS Screw: External Tooth, #6-32 Thread Size, 3/16 in Lg, Steel, Zinc-Plated, Pan, Phillips, 100 PK (MPN MPPEI0-600180-100P). Key specifications — Drive Size: #2.
SEMS
SEMS Screw: External Tooth, #6-32 Thread Size, 3/16 in Lg, Steel, Zinc-Plated, Pan, Phillips, 100 PK (MPN MPPEI0-600180-100P). Key specifications — Drive Size: #2.
SEMS Screw: External Tooth, M3x0.50 Thread Size, 8 mm Lg, Stainless Steel, Passivated, Pan, 25 PK (MPN 1-MPE-3-8). Key specifications — Drive Size: #1.
SEMS
SEMS Screw: External Tooth, M3x0.50 Thread Size, 8 mm Lg, Stainless Steel, Passivated, Pan, 25 PK (MPN 1-MPE-3-8). Key specifications — Drive Size: #1.
SEMS Screw: External Tooth, 1/4"-20 Thread Size, 5/8 in Lg, Stainless Steel, Passivated, Pan (MPN 1-PPE-25C-62). Key specifications — Drive Size: #3.
SEMS
SEMS Screw: External Tooth, 1/4"-20 Thread Size, 5/8 in Lg, Stainless Steel, Passivated, Pan (MPN 1-PPE-25C-62). Key specifications — Drive Size: #3.