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APPROVED VENDOR Self Locking Thread Insert: Std Wall, 1/4"-20 Int Thrd Sz - Heavy Wall Self-Locking Inserts
APPROVED VENDORHeavy Wall Self-Locking Inserts

APPROVED VENDOR Self Locking Thread Insert: Std Wall, 1/4"-20 Int Thrd Sz

The APPROVED VENDOR Self Locking Thread Insert is a standard-wall, heavy-wall self-locking insert with a 1/4"-20 internal thread size and a 7/16"-14 external thread size (coarse, inch system). It features a 2A…

SKU 3G-OTH-534107

Brand
APPROVED VENDOR
Item
Self Locking Thread Insert: Std Wall, 1/4"-20 Int Thrd Sz
Category
Heavy Wall Self-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
316-4
Wall Type
Standard Wall
Ext Thrd Sz
7/16"-14
Int Thrd Sz
1/4"-20
Thread Type
Coarse
Compatible Tap Size
7/16"-14
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 standard-wall, heavy-wall self-locking insert with a 1/4"-20 internal thread size and a 7/16"-14 external thread size (coarse, inch system). It features a 2A external thread fit and a 2B internal thread fit, with a compatible tap size of 7/16"-14 (MPN 316-4).

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 standard-wall, heavy-wall self-locking thread insert (MPN 316-4) repairs or reinforces tapped holes in metal assemblies. It prevents loosening under vibration in industrial machinery, automotive, and aerospace applications. 3G Electric supplies this insert across 14 industrial departments, including machining and power transmission.

What are the specifications of the APPROVED VENDOR 316-4 thread insert?

The insert has a 1/4"-20 internal thread size (2B fit) and a 7/16"-14 external thread size (2A fit), coarse thread, inch system. Compatible tap size is 7/16"-14. It is a standard-wall, heavy-wall self-locking design. 3G Electric sources this APPROVED VENDOR part for global supply.

Where to buy APPROVED VENDOR 316-4 thread inserts worldwide?

3G Electric supplies the APPROVED VENDOR 316-4 self-locking thread insert worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider since 1990, we source across 14 departments including machining and fasteners.

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

Installation requires tapping the hole to 7/16"-14 using a compatible tap, then driving the insert with a standard installation tool until it is flush or slightly below the surface. The self-locking feature engages upon insertion. 3G Electric provides sourcing support for this APPROVED VENDOR insert.

Used in

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APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR heavy 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: Std Wall, 1/2"-13 Int Thrd Sz, 3/4"-10 Ext Thrd Sz (MPN 316-8). 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.
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APPROVED VENDOR Self Locking Thread Insert: Std Wall, M3-0.50 Int Thrd Sz, M6-1.00 Ext Thrd Sz (MPN 416-3). Key specifications — Compatible Tap Size: M6-1.00; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 5.1mm; External Thread Fit: 6G.
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APPROVED VENDOR Self Locking Thread Insert: Std Wall, M3-0.50 Int Thrd Sz, M6-1.00 Ext Thrd Sz (MPN 416-3). Key specifications — Compatible Tap Size: M6-1.00; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 5.1mm; 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 316-3). Key specifications — Compatible Tap Size: 3/8"-16; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 5/16; External Thread Fit: 2A.
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APPROVED VENDOR Self Locking Thread Insert: Std Wall, #10-24 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Plain (MPN 316-3). Key specifications — Compatible Tap Size: 3/8"-16; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 5/16; External Thread Fit: 2A.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M6-1.00 Int Thrd Sz, M10-1.50 Ext Thrd Sz (MPN 416-6). Key specifications — Compatible Tap Size: M10-1.50; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 8.6mm; External Thread Fit: 6G.
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APPROVED VENDOR Self Locking Thread Insert: Std Wall, M6-1.00 Int Thrd Sz, M10-1.50 Ext Thrd Sz (MPN 416-6). Key specifications — Compatible Tap Size: M10-1.50; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 8.6mm; External Thread Fit: 6G.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, #4-40 Int Thrd Sz, #10-32 Ext Thrd Sz, Plain (MPN 316-004). Key specifications — Compatible Tap Size: #10-32; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Fine; Wall Type: Standard Wall; Drill Bit Size: 5/32; External Thread Fit: 2A.
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APPROVED VENDOR Self Locking Thread Insert: Std Wall, #4-40 Int Thrd Sz, #10-32 Ext Thrd Sz, Plain (MPN 316-004). Key specifications — Compatible Tap Size: #10-32; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Fine; Wall Type: Standard Wall; Drill Bit Size: 5/32; External Thread Fit: 2A.
APPROVED VENDOR Self Locking Thread Insert: Heavy Wall, 1/4"-20 Int Thrd Sz, 1 in Overall Lg, 5 PK (MPN 329-401-PK5). Key specifications — Compatible Tap Size: 7/16"-14; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Heavy Wall; External Thread Fit: 2A.
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APPROVED VENDOR Self Locking Thread Insert: Std Wall, M5-0.80 Int Thrd Sz, M8-1.25 Ext Thrd Sz (MPN 416-5). 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.
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APPROVED VENDOR Self Locking Thread Insert: Std Wall, M5-0.80 Int Thrd Sz, M8-1.25 Ext Thrd Sz (MPN 416-5). 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, #6-32 Int Thrd Sz, 1/4"-20 Ext Thrd Sz, Plain (MPN 316-006). Key specifications — Compatible Tap Size: 1/4"-20; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Fine; Wall Type: Standard Wall; Drill Bit Size: 7; External Thread Fit: 2A.
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