Fasteners: Threaded Inserts

DL - Large Flange / Open End

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Material Sizes Product Series Data Sheets Aluminum 6-32, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, M4, M5, M6, M8, M10 DLA Imperial - Metric Steel 6-32, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, M4, M5, M6, M8, M10 DLS Imperial - Metric

Description

The bubble also serves as a load bearing surface, which absorbs the force of setting the insert. Otherwise the setting force, or clamp load, could spread into the application material and might damage the material. This makes the DL insert ideal for use in thin sheet, soft, brittle and low strength materials.

The splined body of the DL insert press into the application material during the installation process. Splined inserts are 50% less likely to turn in the application hole compared to plain body inserts. Splined inserts are ideal for soft materials such as aluminium, magnesium and plastics, where plain body inserts might otherwise fail. The splines also improve electrical continuity in sheet metal applications and electrical assemblies. The large flange of the DL insert provides a large load bearing surface, reinforces the application hole and prevents push through making it ideal for load bearing applications in thin sheet and soft material applications.

Features

• Splined Body improves torque-to-turn by up to 50% compared to plain body inserts
• Improved electrical continuity in sheet metal fixings
• Large Flange provides large load bearing surface, reinforces hole and prevents push through
• Potential to use as a spacer
• Can be used with underhead seal (e.g. Rimlex)
• Reduced Tail End Diameter for ease of hole entry
• Particularly suited for automation

• Metal to metal

• Automotive
• Electrical engineering
• Electronic components
• Sheet metal
• Domestic appliances
• General light fabrication

Specifications

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1) Values for imperial threads (inches). Values for metric threads (mm).

Thread Size	Recommended max torque1),2)	Pull-out1),3)	Torque-to-turn1),2)	Push-out1),3)
6-32 UNC	47	520	10	180
8-32 UNC	65
10-24 UNC	95	630	12	335
10-32 UNF
1/4-20 UNC	235	685		320
1/4-28 UNF	NA
5/16-18 UNC		1115	24	510
5/16-24 UNF
3/8-16 UNC
3/8-24 UNF
M4 x 0.7 6H	6.2	2.3	1.1	0.8
M5 x 0.8 6H	10.7	2.8	1.4	1.5
M6 x 1.0 6H	18.1	3.0		1.4
M8 x 1.25 6H	NA	5.0	2.7	2.3
M10 x 1.5 6H

1) Values for DLS insert series only.
2) Units for imperial thread (lbf-in).  Units for metric thread (Nm).
3) Units for imperial thread (lbf).  Units for metric thread (kN).

Installation Tools

Interactive Demo