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

3G Electric
RFQ CartGet a QuoteSign inSign up
E-Z LOK Self Locking Thread Insert: Heavy Wall, M12-1.75 Int Thrd Sz, 3/4"-10 Ext Thrd Sz - Heavy Wall Self-Locking Inserts
E-Z LOKHeavy Wall Self-Locking Inserts

E-Z LOK Self Locking Thread Insert: Heavy Wall, M12-1.75 Int Thrd Sz, 3/4"-10 Ext Thrd Sz

The E-Z LOK Self Locking Thread Insert: Heavy Wall (SKU 4ZE78, MPN 653-12-PK5) is a 5-pack of M12-1.75 internal thread inserts with a 3/4"-10 UNC external thread. It features a heavy wall design, metric internal/UNC…

SKU 3G-OTH-534137

Brand
E-Z LOK
Item
Self Locking Thread Insert: Heavy Wall, M12-1.75 Int Thrd Sz, 3/4"-10 Ext Thrd Sz
Category
Heavy Wall Self-Locking Inserts
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

E-Z LOK
Manufacturer Part Number
653-12-PK5
Type
M12-1.75 Int Thrd Sz, 5 PK
Wall Type
Heavy Wall
Ext Thrd Sz
3/4"-10
Thread Type
Metric Internal/UNC External
Compatible Tap Size
3/4"-10
External Thread Fit
2A
Internal Thread Fit
2B
System of Measurement
Inch/Metric
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

E-Z LOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The E-Z LOK Self Locking Thread Insert: Heavy Wall (SKU 4ZE78, MPN 653-12-PK5) is a 5-pack of M12-1.75 internal thread inserts with a 3/4"-10 UNC external thread. It features a heavy wall design, metric internal/UNC external thread type, 2A external and 2B internal thread fits, and is compatible with a 3/4"-10 tap.

Frequently Asked Questions

Is the E-Z LOK Self Locking Thread Insert: Heavy Wall, M12-1.75 Int Thrd Sz, 3/4"-10 Ext Thrd Sz available from 3G Electric?

Yes — 3G Electric supplies genuine E-Z LOK products, available to order with worldwide shipping. Contact us for current lead time.

How do I get a quote for the E-Z LOK Self Locking Thread Insert: Heavy Wall, M12-1.75 Int Thrd Sz, 3/4"-10 Ext Thrd Sz?

Click "Request a Quote" on this page or add the product to your RFQ cart. Our engineers will respond within 24 hours with pricing, lead times, and technical recommendations.

Does 3G Electric provide technical support for heavy wall self-locking inserts?

Yes, our team of experienced engineers provides full technical support including product selection, installation guidance, commissioning, and after-sales service for all heavy wall self-locking inserts we distribute.

E-Z LOK Products

3G Electric supplies E-Z LOK heavy wall self-locking inserts. 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 E-Z LOK

View all E-Z LOK parts →
E-Z LOK Self Locking Thread Insert: Heavy Wall, M12-1.75 Int Thrd Sz, M16-2.00 Ext Thrd Sz, 5 PK (MPN 453-12-PK5). Key specifications — Compatible Tap Size: M16-2.00; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Metric; Wall Type: Heavy Wall; Drill Bit Size: 14 mm; External Thread Fit: 6G.
E-Z LOK
E-Z LOK Self Locking Thread Insert: Heavy Wall, M12-1.75 Int Thrd Sz, M16-2.00 Ext Thrd Sz, 5 PK (MPN 453-12-PK5). Key specifications — Compatible Tap Size: M16-2.00; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Metric; Wall Type: Heavy Wall; Drill Bit Size: 14 mm; External Thread Fit: 6G.
E-Z LOK Self Locking Thread Insert: Heavy Wall, 5/16"-18 Int Thrd Sz, M12-1.75 Ext Thrd Sz, 5 PK (MPN 550-5-PK5). Key specifications — Compatible Tap Size: M12-1.75; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: UNC Internal/Metric External; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK
E-Z LOK Self Locking Thread Insert: Heavy Wall, 5/16"-18 Int Thrd Sz, M12-1.75 Ext Thrd Sz, 5 PK (MPN 550-5-PK5). Key specifications — Compatible Tap Size: M12-1.75; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: UNC Internal/Metric External; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK Self Locking Thread Insert: Heavy Wall, 5/8"-18 Int Thrd Sz, 7/8"-9 Ext Thrd Sz, Steel, 5 PK (MPN 329-10F-PK5). Key specifications — Compatible Tap Size: 7/8"-9; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: UNF Internal/UNC External; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK
E-Z LOK Self Locking Thread Insert: Heavy Wall, 5/8"-18 Int Thrd Sz, 7/8"-9 Ext Thrd Sz, Steel, 5 PK (MPN 329-10F-PK5). Key specifications — Compatible Tap Size: 7/8"-9; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: UNF Internal/UNC External; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK Self Locking Thread Insert: Heavy Wall, #8-32 Int Thrd Sz, M8-1.25 Ext Thrd Sz, Steel, 5 PK (MPN 550-008-PK5). Key specifications — Compatible Tap Size: M8-1.25; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: UNC Internal/Metric External; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK
E-Z LOK Self Locking Thread Insert: Heavy Wall, #8-32 Int Thrd Sz, M8-1.25 Ext Thrd Sz, Steel, 5 PK (MPN 550-008-PK5). Key specifications — Compatible Tap Size: M8-1.25; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: UNC Internal/Metric External; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK Self Locking Thread Insert: Heavy Wall, M10-1.50 Int Thrd Sz, M16-2.00 Ext Thrd Sz, 5 PK (MPN 453-10-PK5). Key specifications — Compatible Tap Size: M16-2.00; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Metric; Wall Type: Heavy Wall; Drill Bit Size: 14 mm; External Thread Fit: 6G.
E-Z LOK
E-Z LOK Self Locking Thread Insert: Heavy Wall, M10-1.50 Int Thrd Sz, M16-2.00 Ext Thrd Sz, 5 PK (MPN 453-10-PK5). Key specifications — Compatible Tap Size: M16-2.00; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Metric; Wall Type: Heavy Wall; Drill Bit Size: 14 mm; External Thread Fit: 6G.
E-Z LOK Self Locking Thread Insert: Heavy Wall, #10-24 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Plain, 5 PK (MPN 303-3-PK5). Key specifications — Compatible Tap Size: 3/8"-16; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK
E-Z LOK Self Locking Thread Insert: Heavy Wall, #10-24 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Plain, 5 PK (MPN 303-3-PK5). Key specifications — Compatible Tap Size: 3/8"-16; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK Self Locking Thread Insert: Heavy Wall, 1/2"-20 Int Thrd Sz, 3/4"-10 Ext Thrd Sz, 5 PK (MPN 303-820-PK5). Key specifications — Compatible Tap Size: 3/4"-10; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: UNF Internal/UNC External; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK
E-Z LOK Self Locking Thread Insert: Heavy Wall, 1/2"-20 Int Thrd Sz, 3/4"-10 Ext Thrd Sz, 5 PK (MPN 303-820-PK5). Key specifications — Compatible Tap Size: 3/4"-10; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: UNF Internal/UNC External; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK Self Locking Thread Insert: Heavy Wall, M16-2.00 Int Thrd Sz, 1"-8 Ext Thrd Sz, Steel, 5 PK (MPN 650-16-PK5). Key specifications — Compatible Tap Size: #1-8; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: Metric Internal/UNC External; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK
E-Z LOK Self Locking Thread Insert: Heavy Wall, M16-2.00 Int Thrd Sz, 1"-8 Ext Thrd Sz, Steel, 5 PK (MPN 650-16-PK5). Key specifications — Compatible Tap Size: #1-8; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: Metric Internal/UNC External; Wall Type: Heavy Wall; External Thread Fit: 2A.