BaerCoil Wire Thread Inserts M 4 x 0.7 - 2.0 D (8 mm) - free running - AISI 316 - 100 pcs.
BaerCoil Wire Thread Inserts M 4 x 0.7 - 2.0 D (8 mm) - free running - AISI 316 - 100 pcs.
BaerCoil® thread inserts are the best solution for your thread repair! With them you can create long-lasting and powerful threaded connections. The inserts also ensure that you have no waste and recycle everything. The inserts are precise and wear resistant - your screw will stay firmly in place without the thread insert slipping.
The BaerCoil® thread insert is the perfect solution for damaged threads - with the same nominal diameter! For thread repair with wire thread inserts, the thread is drilled out and a new STI thread (screw thread insert) for the wire- thread insert is cut. This thread is often also called STI thread (STI=Screw Thread Insert).
BaerCoil® thread inserts are an indispensable component in aviation and vehicle construction. They ensure that both static and dynamic work loads are distributed in a balanced manner over the individual thread turns. Also, the flexibility of the thread inserts compensates for any pitch and angular errors, so that optimum force transmission from the bolt to the nut thread is achieved. Especially in lightweight constructions, BaerCoil® thread inserts helps to reduce the carrier material and to use smaller or shorter screw connections. Thanks to their versatility and reliability, BaerCoil® thread inserts are now an indispensable component in many industries.
BaerCoil thread inserts can be shortened to the required length with a side cutter or similar.
Dimensions
| Diameter |
4 |
|---|---|
| Pitch |
0,7 |
| Dimension |
M 4 x 0,7 |
| Length |
2,0 D |
| T (Length when installed) |
8 mm |
| Thread length calculation |
2.0 D means 2 times the diameter: 2 times 4 mm=8 mm The nominal diameter for M 4 is 4 mm |
Characteristics
| Product group |
Wire thread inserts |
|---|---|
| Product type |
BaerCoil wire thread inserts |
| Thread standard |
M: Metric ISO standard thread according to DIN 13 |
| Tolerance |
ISO2/6H |
| Direction |
Right |
| Type |
free running |
| Tensile strength at room temperature |
>1400 N/mm² |
| Material |
Stainless Steel V4A (AISI 316, X5CrNiMo17-12-2, Material No.: 1.4401) |
| Temperature resistance |
315°C long-term 425°C short-term |
Applications
Applications in seawater and chlorinated water
Attributes
- improved corrosion resistance
- reduced thread friction
- for high-alloy CrNi steel screws
Technical drawing
| Diameter |
4 |
|---|---|
| Length |
2,0 D |
| T (Length when installed) |
8 mm |
| F (Min. - Max. outside diameter of thread insert) |
4,83 mm - 5,60 mm |
| P (depth) |
The thread insert must sit 1/4 - 1/2 turns below the surface |
| B (thread depth with chamfer) |
10,45 mm |
| D (minimum depth of the core hole, without tip) |
11,15 mm |
Video instructions
Further information
Product data sheet
Safety instructions
Zubehör
