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
APPROVED VENDOR Self Locking Thread Insert: Std Wall, 5/16"-18 Int Thrd Sz - Self-Locking Insert & Installation Tool Kits
APPROVED VENDORSelf-Locking Insert & Installation Tool Kits

APPROVED VENDOR Self Locking Thread Insert: Std Wall, 5/16"-18 Int Thrd Sz

The APPROVED VENDOR Self Locking Thread Insert (Std Wall, MPN EZ-329-5) is a standard-wall, inch-system insert with a 5/16"-18 internal thread size and a 1/2"-13 external thread size. It features coarse threads, a…

SKU 3G-OTH-533998

Brand
APPROVED VENDOR
Item
Self Locking Thread Insert: Std Wall, 5/16"-18 Int Thrd Sz
Category
Self-Locking Insert & Installation Tool Kits
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

APPROVED VENDOR
Manufacturer Part Number
EZ-329-5
Wall Type
Standard Wall
Ext Thrd Sz
1/2"-13
Int Thrd Sz
5/16"-18
Thread Type
Coarse
Drill Bit Size
27/64
Compatible Tap Size
1/2"-13
External Thread Fit
2A
Internal Thread Fit
2B
System of Measurement
Inch
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

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

Product Description

The APPROVED VENDOR Self Locking Thread Insert (Std Wall, MPN EZ-329-5) is a standard-wall, inch-system insert with a 5/16"-18 internal thread size and a 1/2"-13 external thread size. It features coarse threads, a 27/64 drill bit size, a compatible tap size of 1/2"-13, and external/internal thread fits of 2A and 2B respectively.

Frequently Asked Questions

What is an APPROVED VENDOR Self Locking Thread Insert used for?

This standard-wall thread insert repairs or reinforces tapped holes in metal assemblies. It provides a durable 5/16"-18 internal thread with a 1/2"-13 external thread, locking the fastener to resist vibration loosening in industrial machinery, automotive, and equipment maintenance applications.

What are the specifications of the APPROVED VENDOR EZ-329-5 thread insert?

The EZ-329-5 is an inch-system, coarse-thread insert with a 5/16"-18 internal thread size and a 1/2"-13 external thread size. It requires a 27/64 drill bit and a 1/2"-13 tap. External thread fit is 2A; internal thread fit is 2B. Wall type is standard.

Where to buy APPROVED VENDOR thread inserts worldwide?

3G Electric supplies the APPROVED VENDOR Self Locking Thread Insert EZ-329-5 to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this standard-wall insert.

How to install an APPROVED VENDOR self-locking thread insert?

Drill the hole to 27/64, tap it to 1/2"-13, then install the insert using a compatible installation tool. The insert's self-locking feature engages as it is seated. Follow standard thread-insert installation practices: clean threads, apply thread locker if needed, and verify depth.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR self-locking insert & installation tool kits. 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 APPROVED VENDOR

View all APPROVED VENDOR parts →
APPROVED VENDOR Self Locking Thread Insert: Std Wall, #8-32 Int Thrd Sz, 5/16"-18 Ext Thrd Sz, Steel (MPN EZ-329-008). Key specifications — Compatible Tap Size: 5/16"-18; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Standard Wall; External Thread Fit: 2A.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Std Wall, #8-32 Int Thrd Sz, 5/16"-18 Ext Thrd Sz, Steel (MPN EZ-329-008). Key specifications — Compatible Tap Size: 5/16"-18; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Standard Wall; External Thread Fit: 2A.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M10-1.50 Int Thrd Sz, 9/16"-12 Ext Thrd Sz (MPN EZ-650-10). Key specifications — Compatible Tap Size: 9/16"-12; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 31/64; External Thread Fit: 2A.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M10-1.50 Int Thrd Sz, 9/16"-12 Ext Thrd Sz (MPN EZ-650-10). Key specifications — Compatible Tap Size: 9/16"-12; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 31/64; External Thread Fit: 2A.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, 9/16"-12 Int Thrd Sz, 3/4"-10 Ext Thrd Sz (MPN EZ-329-9). Key specifications — Compatible Tap Size: 3/4"-10; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 21/32; External Thread Fit: 2A.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Std Wall, 9/16"-12 Int Thrd Sz, 3/4"-10 Ext Thrd Sz (MPN EZ-329-9). Key specifications — Compatible Tap Size: 3/4"-10; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 21/32; External Thread Fit: 2A.
APPROVED VENDOR Self Locking Thread Insert: Thin Wall, 1/2"-13 Int Thrd Sz, 5/8"-11 Ext Thrd Sz (MPN EZ-310-8). Key specifications — Compatible Tap Size: 5/8"-11; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Thin Wall; Drill Bit Size: 37/64; External Thread Fit: 2A.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Thin Wall, 1/2"-13 Int Thrd Sz, 5/8"-11 Ext Thrd Sz (MPN EZ-310-8). Key specifications — Compatible Tap Size: 5/8"-11; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Thin Wall; Drill Bit Size: 37/64; External Thread Fit: 2A.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, 3/8"-24 Int Thrd Sz, 9/16"-12 Ext Thrd Sz (MPN EZ-329-624). Key specifications — Compatible Tap Size: 9/16"-12; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 31/64; External Thread Fit: 2A.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Std Wall, 3/8"-24 Int Thrd Sz, 9/16"-12 Ext Thrd Sz (MPN EZ-329-624). Key specifications — Compatible Tap Size: 9/16"-12; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 31/64; External Thread Fit: 2A.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M8-1.25 Int Thrd Sz, 1/2"-13 Ext Thrd Sz (MPN EZ-650-8). Key specifications — Compatible Tap Size: 1/2"-13; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 27/64; External Thread Fit: 2A.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M8-1.25 Int Thrd Sz, 1/2"-13 Ext Thrd Sz (MPN EZ-650-8). Key specifications — Compatible Tap Size: 1/2"-13; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 27/64; External Thread Fit: 2A.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M5-0.80 Int Thrd Sz, M8-1.25 Ext Thrd Sz (MPN EZ-450-5). Key specifications — Compatible Tap Size: M8-1.25; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 6.9mm; External Thread Fit: 6G.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M5-0.80 Int Thrd Sz, M8-1.25 Ext Thrd Sz (MPN EZ-450-5). Key specifications — Compatible Tap Size: M8-1.25; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 6.9mm; External Thread Fit: 6G.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, #10-24 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Plain (MPN EZ-303-332). Key specifications — Compatible Tap Size: 3/8"-16; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Fine; Wall Type: Standard Wall; Drill Bit Size: 5/16; External Thread Fit: 2A.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Std Wall, #10-24 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Plain (MPN EZ-303-332). Key specifications — Compatible Tap Size: 3/8"-16; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Fine; Wall Type: Standard Wall; Drill Bit Size: 5/16; External Thread Fit: 2A.