Metric Tangless Thread Inserts offer the same reliable thread strengthening as tanged inserts but with a crucial advantage – they eliminate the need for a tang during installation. This absence of a tang significantly reduces the risk of metal fragments falling into critical applications, such as engines or electronic equipment.
These Tangless wire thread inserts are available in two variations: free-running and screw-locking.
In contrast, tanged inserts require the tang to be broken off for male threaded fasteners to be properly positioned. This additional step increases overall installation time, necessitates extra tooling, and ultimately results in higher installation costs. Tangless wire thread inserts eliminate this process entirely, resulting in a more cost-effective installation per hole.
Furthermore, in applications involving blind holes, tanged inserts demand extra space beneath the insert to accommodate tang removal without harming the parent material. When using Tangless wire thread inserts, this required space is significantly reduced, leading to a reduction in both the size and weight of machined parts.
| Drawing No. | dxp | Kxd | L | w | d1 min. | d1 max | B Tap Drill Size | |
| Free Running | Screw- Lock | |||||||
| L 4020011 | L 4022011 | M3X0.5 | 1d | 3.00 | 3.750 | 3.80 | 4.35 | 3.20 |
| L 4020012 | L 4022012 | 1.5d | 4.50 | 6.375 | 3.80 | 4.35 | 3.20 | |
| L 4020013 | L 4022013 | 2d | 6.00 | 8.875 | 3.80 | 4.35 | 3.20 | |
| L 4020021 | L 4022021 | M4X0.7 | 1d | 4.00 | 3.625 | 5.05 | 5.60 | 4.20 |
| L 4020022 | L 4022022 | 1.5d | 6.00 | 6.125 | 5.05 | 5.60 | 4.20 | |
| L 4020023 | L 4022023 | 2d | 8.00 | 8.625 | 5.05 | 5.60 | 4.20 | |
| L 4020031 | L 4022031 | M5X0.8 | 1d | 5.00 | 4.125 | 6.25 | 6.80 | 5.20 |
| L 4020032 | L 4022032 | 1.5d | 7.50 | 6.875 | 6.25 | 6.80 | 5.20 | |
| L 4020033 | L 4022033 | 2d | 10.00 | 9.625 | 6.25 | 6.80 | 5.20 | |
| L 4020041 | L 4022041 | M6X1.0 | 1d | 6.00 | 4.000 | 7.40 | 7.95 | 6.30 |
| L 4020042 | L 4022042 | 1.5d | 9.00 | 6.750 | 7.40 | 7.95 | 6.30 | |
| L 4020043 | L 4022043 | 2d | 12.00 | 9.500 | 7.40 | 7.95 | 6.30 | |
| L 4020051 | L 4022051 | M8X1.25 | 1d | 8.00 | 4.500 | 9.80 | 10.35 | 8.40 |
| L 4020052 | L 4022052 | 1.5d | 12.00 | 7.375 | 9.80 | 10.35 | 8.40 | |
| L 4020053 | L 4022053 | 2d | 16.00 | 10.250 | 9.80 | 10.35 | 8.40 | |
| L 4020061 | L 4022061 | M10X1.5 | 1d | 10.00 | 4.875 | 11.95 | 12.50 | 10.50 |
| L 4020062 | L 4022062 | 1.5d | 15.00 | 8.000 | 11.95 | 12.50 | 10.50 | |
| L 4020063 | L 4022063 | 2d | 20.00 | 11.125 | 11.95 | 12.50 | 10.50 | |
| L 4020071 | L 4022071 | M12X1.75 | 1d | 12.00 | 5.000 | 14.30 | 15.00 | 12.50 |
| L 4020072 | L 4022072 | 1.5d | 18.00 | 8.250 | 14.30 | 15.00 | 12.50 | |
| L 4020073 | L 4022073 | 2d | 24.00 | 11.500 | 14.30 | 15.00 | 12.50 | |
| L 4020081 | L 4022081 | M14X2.0 | 1d | 14.00 | 5.250 | 16.80 | 17.50 | 14.50 |
| L 4020082 | L 4022082 | 1.5d | 21.00 | 8.575 | 16.80 | 17.50 | 14.50 | |
| L 4020083 | L 4022083 | 2d | 28.00 | 11.900 | 16.80 | 17.50 | 14.50 | |
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