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APPROVED VENDOR Self Locking Thread Insert: Thin Wall, 1/4"-28 Int Thrd Sz, 3/8 in Overall Lg - Thin Wall Self-Locking Inserts
APPROVED VENDORThin Wall Self-Locking Inserts

APPROVED VENDOR Self Locking Thread Insert: Thin Wall, 1/4"-28 Int Thrd Sz, 3/8 in Overall Lg

The APPROVED VENDOR Self Locking Thread Insert is a thin-wall, inch-system insert with a 1/4"-28 fine internal thread and 3/8 in overall length. Supplied in a 5-pack (MPN 313-428-PK5), it features a 2B internal…

SKU 3G-OTH-528423

Brand
APPROVED VENDOR
Item
Self Locking Thread Insert: Thin Wall, 1/4"-28 Int Thrd Sz, 3/8 in Overall Lg
Category
Thin Wall Self-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
313-428-PK5
Type
5 PK
Overall Lg
3/8 in
Wall Type
Thin Wall
Int Thrd Sz
1/4"-28
Thread Type
Fine
Compatible Tap Size
3/8"-24
External Thread Fit
2A
Internal Thread Fit
2B
System of Measurement
Inch
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APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Self Locking Thread Insert is a thin-wall, inch-system insert with a 1/4"-28 fine internal thread and 3/8 in overall length. Supplied in a 5-pack (MPN 313-428-PK5), it features a 2B internal thread fit, 2A external thread fit, and is compatible with a 3/8"-24 tap. 3G Electric sources this genuine industrial fastener across 14 departments, with specialist expertise in combustion, pumps, and controls ensuring accurate sourcing and support.

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 an APPROVED VENDOR Self Locking Thread Insert used for?

This thin-wall insert repairs or reinforces internal threads in metal assemblies. It is used across industrial machinery, automotive, and equipment maintenance where a 1/4"-28 fine thread is required. 3G Electric supplies this genuine fastener globally, backed by specialist expertise in combustion, pumps, and controls.

What are the specifications of the APPROVED VENDOR 313-428-PK5 thread insert?

This 5-pack insert has a 1/4"-28 fine internal thread, 3/8 in overall length, thin wall design, 2B internal thread fit, and 2A external thread fit. It is compatible with a 3/8"-24 tap and uses inch system measurement. The manufacturer part number is 313-428-PK5.

Where to buy APPROVED VENDOR thread inserts worldwide?

3G Electric supplies the APPROVED VENDOR Self Locking Thread Insert 313-428-PK5 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 5-pack thin-wall insert.

How to install a thin wall self-locking thread insert?

Installation requires tapping the hole to 3/8"-24, then using a compatible installation tool to drive the insert flush. The self-locking feature holds the insert in place without adhesives. Always follow the manufacturer's instructions for torque and depth to ensure a secure fit.

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 thin wall self-locking inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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APPROVED VENDOR Self Locking Thread Insert: Thin Wall, #8-32 Int Thrd Sz, 1/4"-28 Ext Thrd Sz, 5 PK (MPN 313-008-PK5). Key specifications — Compatible Tap Size: 1/4"-28; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Thin Wall; External Thread Fit: 2A.
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APPROVED VENDOR Self Locking Thread Insert: Thin Wall, M10-1.50 Int Thrd Sz, 1/2 in Overall Lg, 5 PK (MPN 313-M10-PK5). Key specifications — Compatible Tap Size: 1/2"-20; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: Coarse; Wall Type: Thin Wall; Drill Bit Size: 29/64; External Thread Fit: 2A.
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APPROVED VENDOR Self Locking Thread Insert: Thin Wall, M10-1.50 Int Thrd Sz, 1/2 in Overall Lg, 5 PK (MPN 313-M10-PK5). Key specifications — Compatible Tap Size: 1/2"-20; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: Coarse; Wall Type: Thin Wall; Drill Bit Size: 29/64; External Thread Fit: 2A.
APPROVED VENDOR Self Locking Thread Insert: Thin Wall, #10-32 Int Thrd Sz, 5/16 in Overall Lg, 5 PK (MPN 313-332-PK5). Key specifications — Compatible Tap Size: 5/16"-24; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Fine; Wall Type: Thin Wall; External Thread Fit: 2A.
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APPROVED VENDOR Self Locking Thread Insert: Thin Wall, 5/16"-18 Int Thrd Sz, Stainless Steel, 5 PK (MPN 313-5-PK5). Key specifications — Compatible Tap Size: 7/16"-20; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Thin Wall; Drill Bit Size: 25/64; External Thread Fit: 2A.
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APPROVED VENDOR Self Locking Thread Insert: Thin Wall, 7/16"-14 Int Thrd Sz, Stainless Steel, 5 PK (MPN 313-7-PK5). Key specifications — Compatible Tap Size: 9/16"-18; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Thin Wall; Drill Bit Size: 33/64; External Thread Fit: 2A.
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