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

APPROVED VENDOR Self Locking Thread Insert: Std Wall, 3/8"-16 Int Thrd Sz - Heavy Wall Self-Locking Inserts
APPROVED VENDORHeavy Wall Self-Locking Inserts

APPROVED VENDOR Self Locking Thread Insert: Std Wall, 3/8"-16 Int Thrd Sz

The APPROVED VENDOR Self Locking Thread Insert is a heavy wall, standard wall insert with a 3/8"-16 internal thread size and a 9/16"-12 external thread size (MPN 316-6). It features fine threads, a 31/64 drill bit…

SKU 3G-OTH-534172

Brand
APPROVED VENDOR
Item
Self Locking Thread Insert: Std Wall, 3/8"-16 Int 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

APPROVED VENDOR
Manufacturer Part Number
316-6
Wall Type
Standard Wall
Ext Thrd Sz
9/16"-12
Int Thrd Sz
3/8"-16
Thread Type
Fine
Drill Bit Size
31/64
Compatible Tap Size
9/16"-12
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 is a heavy wall, standard wall insert with a 3/8"-16 internal thread size and a 9/16"-12 external thread size (MPN 316-6). It features fine threads, a 31/64 drill bit size, and is compatible with a 9/16"-12 tap, with external thread fit 2A and internal thread fit 2B in the inch system.

Frequently Asked Questions

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

This heavy wall insert repairs or reinforces tapped holes in metal assemblies, preventing loosening under vibration. It is commonly used in industrial machinery, automotive, and aerospace applications where a secure, reusable threaded connection is required.

What are the specifications of the APPROVED VENDOR 316-6 thread insert?

The insert has a 3/8"-16 internal thread size and a 9/16"-12 external thread size, with fine threads. It requires a 31/64 drill bit and a 9/16"-12 tap. External thread fit is 2A, internal fit is 2B, in the inch system.

Where to buy APPROVED VENDOR thread inserts worldwide?

3G Electric supplies and delivers the APPROVED VENDOR 316-6 self locking thread insert to worldwide locations. We handle full logistics and customs clearance, ensuring you receive the correct standard wall insert for your repair or production needs.

How to install an APPROVED VENDOR self locking thread insert?

Drill a hole using a 31/64 bit, tap it with a 9/16"-12 tap, then install the insert using a compatible tool. The self-locking feature engages during insertion, providing vibration resistance. Follow standard thread insert installation practices for best results.

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 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 APPROVED VENDOR

View all APPROVED VENDOR parts
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.
APPROVED VENDOR
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.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M10-1.50 Int Thrd Sz, M16-2.00 Ext Thrd Sz (MPN 416-10). Key specifications — Compatible Tap Size: M16-2.00; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 14mm; External Thread Fit: 6G.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M10-1.50 Int Thrd Sz, M16-2.00 Ext Thrd Sz (MPN 416-10). Key specifications — Compatible Tap Size: M16-2.00; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 14mm; External Thread Fit: 6G.
APPROVED VENDOR Self Locking Thread Insert: Heavy Wall, 5/16"-18 Int Thrd Sz, 1 in Overall Lg, 5 PK (MPN 329-501-PK5). Key specifications — Compatible Tap Size: 1/2"-13; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Heavy Wall; Drill Bit Size: 27/64; External Thread Fit: 2A.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Heavy Wall, 5/16"-18 Int Thrd Sz, 1 in Overall Lg, 5 PK (MPN 329-501-PK5). Key specifications — Compatible Tap Size: 1/2"-13; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Heavy Wall; Drill Bit Size: 27/64; External Thread Fit: 2A.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M4-0.70 Int Thrd Sz, M8-1.25 Ext Thrd Sz (MPN 416-4). 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, M4-0.70 Int Thrd Sz, M8-1.25 Ext Thrd Sz (MPN 416-4). 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, 3/8"-16 Int Thrd Sz, 1 in Overall Lg, 5 PK (MPN 329-601-PK5). 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"-16 Int Thrd Sz, 1 in Overall Lg, 5 PK (MPN 329-601-PK5). 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, 3/4"-10 Int Thrd Sz, 1"-8 Ext Thrd Sz, Plain (MPN 316-12). Key specifications — Compatible Tap Size: 1"-8; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 7/8; External Thread Fit: 2A.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Std Wall, 3/4"-10 Int Thrd Sz, 1"-8 Ext Thrd Sz, Plain (MPN 316-12). Key specifications — Compatible Tap Size: 1"-8; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 7/8; External Thread Fit: 2A.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M8-1.25 Int Thrd Sz, M12-1.75 Ext Thrd Sz (MPN 416-8). Key specifications — Compatible Tap Size: M12-1.75; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 10.4mm; External Thread Fit: 6G.
APPROVED VENDOR
APPROVED VENDOR Self Locking Thread Insert: Std Wall, M8-1.25 Int Thrd Sz, M12-1.75 Ext Thrd Sz (MPN 416-8). Key specifications — Compatible Tap Size: M12-1.75; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 10.4mm; External Thread Fit: 6G.
APPROVED VENDOR Self Locking Thread Insert: Std Wall, 5/16"-18 Int Thrd Sz, 1/2"-13 Ext Thrd Sz (MPN 316-5). Key specifications — Compatible Tap Size: 1/2"-13; Internal Thread Fit: 2B; System of Measurement: Inch; 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, 5/16"-18 Int Thrd Sz, 1/2"-13 Ext Thrd Sz (MPN 316-5). Key specifications — Compatible Tap Size: 1/2"-13; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Standard Wall; Drill Bit Size: 27/64; External Thread Fit: 2A.