Products - Self Tapping Threaded Inserts - Bour Self Tapping Inserts

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Hole Series - Key Features:
Hole Series self threaded inserts are designed for use in tough-to-tap, high-strength materials as well as softer metals and plastics.
Highest pull-out resistance.
Suitable for harder materials.
Superior vibration resistance.
One-step installation.
Available certified to military standards.

Superior pull-out resistance in softer metals and plastics from the external v-form thread.

Circular cutting elements self-tap and lock into the base material. They are able to resist extreme vibration with no loss in performance.

High-quality internal threads are wear resistant, Unified and American Standard, class 2B, or ISO Metric standard, class 6H threads. Military versions conform to Unified and American Standard, class 3B.

This threaded insert is a solid metal bushing that is available in stainless steel, steel with zinc plating, or steel with cadmium plating in regular, medium or short length.

Performance Data*
Internal Thread Size   Pull-Out Resistance (lb) Tensile Strength (lb) of 160,000 PSI Heat-Treated Cap Screw
Effective Shear Area Phenolic 380 Die Cast Aluminum 2024 T4 Wrought Aluminum
(in) (metric) (in)2 (9,500 PSI Shear) (26,000 PSI Shear) (40,000 PSI Shear) (in) (metric)
2 2 0.040 380 1040 1600 - 510
4 3 0.060 570 1560 2400 910 1250
6 3.5 0.090 860 2340 3600 1370 1680
8 4 0.130 1290 3380 5200 2120 2180
10 5 0.170 1620 4420 6800 2825 3520
1/4 6 0.270 2570 7020 10800 4800 4980
5/16 8 0.410 3900 10660 16400 7900 9080
3/8 10 0.610 5700 15860 24400 11700 14320
7/16 - 0.780 7410 20280 31200 16050 -
1/2 12 1.040 9880 27040 41600 21550 20910
9/16 14 1.230 11590 31720 48800 27200 28520
5/8 16 1.610 15300 41860 64400 34200 38940
3/4 18 2.360 22420 61360 94400 50500 -
*Representative performance data for regular length. Preproduction prototype testing recommended for your application.

Pull-Out Resistance or Tensile Strength

Specifications table key:

Refer to the 'Specifications' table below for the measurements that correspond to this diagram.